FastHemis One-Click Stage 1 Kit Bundle
Fits 2011–2021 Jeep Grand Cherokee 6.4L SRT
Why Buy the Bundle?
The FastHemis One-Click Stage 1 Kit offers a seamless upgrade path for your Jeep Grand Cherokee 6.4L SRT, combining expertly selected components designed to work in harmony. This bundle provides a hassle-free shopping experience with all necessary parts included, ensuring perfect fitment and compatibility. Hand-picked by performance specialists, each item delivers targeted improvements to power, throttle response, and combustion efficiency. By choosing this kit, you benefit from premium parts at a better value than purchasing individually, making it an ideal choice for enthusiasts seeking reliable, bolt-on gains.
What's Included
- aFe Momentum GT Carbon Fiber Cold Air Intake: A lightweight, high-flow intake system featuring a Pro Dry-S filter that replaces the restrictive factory setup to enhance airflow and throttle response for the 2012–2021 Jeep Grand Cherokee 6.4L SRT8 and compatible Dodge Durango models.
- Ripp HEMI High Performance Coil Packs: Upgraded ignition coil packs engineered with increased windings and superior materials to deliver a stronger spark, boosting cylinder flame speed and improving power output by up to 30 wheel horsepower on 6.4L engines. Includes all eight coil packs with heat-resistant housings for durability.
- E3.74 Automotive Spark Plugs: High-performance spark plugs featuring patented DiamondFIRE technology and a triple-legged ground electrode to promote faster, more complete combustion. Designed for a precise fit with a fixed gap for consistent ignition and extended service life.
Bundle Overview
This Stage 1 Kit combines enhanced intake, ignition, and spark plug technologies to optimize your Jeep Grand Cherokee’s 6.4L SRT engine performance. The aFe Momentum GT intake increases airflow with its carbon fiber construction and high-efficiency filter, while the Ripp coil packs deliver a hotter, more powerful spark that accelerates combustion speed and improves throttle response. Complementing these upgrades, the E3 spark plugs ensure consistent ignition and efficient fuel burn, supporting smoother engine operation and improved power delivery.
Together, these components form a cohesive system that elevates engine efficiency and responsiveness without requiring tuning. This bundle is perfect for enthusiasts looking to unlock additional horsepower and torque with reliable, bolt-on parts suited for daily driving and spirited performance.
Expected Performance
The Ripp coil packs alone contribute up to an additional 25–30 wheel horsepower on the 6.4L HEMI, thanks to increased spark energy and improved combustion dynamics. The intake and spark plugs support these gains by enhancing airflow and combustion efficiency, resulting in a more responsive and powerful driving experience.
Key Features
This bundle combines advanced materials and engineering for lasting performance:
- Carbon fiber intake tube for lightweight strength and improved airflow
- Pro Dry-S high-flow air filter for superior filtration and easy maintenance
- High-density polymer and heat-resistant coil pack housings for durability under extreme conditions
- Increased coil winding turns for stronger, more consistent spark energy
- Patented DiamondFIRE spark plug technology for optimized combustion and fuel efficiency
- Triple-legged ground electrode design to enhance heat dissipation and combustion turbulence
- Direct bolt-on installation with no tuning required for all components
- Precision fitment tailored specifically for 6.4L HEMI engines in Jeep Grand Cherokee and compatible models
aFe Momentum GT Carbon Fiber Cold Air Intake
2012–2021 Jeep Grand Cherokee 6.4L SRT8, 2018–2025 Dodge Durango 6.4L 392
Part #: 58-10001D
Overview
The aFe Momentum GT Carbon Fiber Cold Air Intake with Pro Dry-S filter is engineered to elevate the performance of your Jeep Grand Cherokee 6.4L SRT8 or Dodge Durango 6.4L 392. Designed for enthusiasts seeking a significant power boost and enhanced throttle response, this intake system replaces the restrictive factory air intake with a lightweight, high-flow carbon fiber assembly. It delivers improved airflow and filtration while reducing overall intake weight, making it an ideal upgrade for street and light off-road use.
With a focus on durability, efficiency, and ease of installation, the Momentum GT intake offers a perfect balance of performance and convenience for drivers who demand more from their SRT-powered vehicles.
Key Features
This intake system combines advanced materials and innovative design to maximize engine breathing and performance gains:
- Dyno-proven power gains of up to +35 horsepower and +31 lb-ft of torque
- Outflows the factory intake by 45%, with a measured airflow of 615 CFM at 7" H2O
- Race-inspired, lightweight 100% carbon fiber construction for reduced weight and enhanced durability
- Massive 8-1/2" tall, three-layer Pro Dry-S air filter featuring oil-free synthetic media for superior filtration and easy maintenance
- Utilizes factory mounting points and both original equipment air inlets to ensure maximum airflow and a secure fit
- Washable and reusable air filter media designed for street and light off-road conditions
- Premium stainless-steel T-bolt clamps and reinforced silicone couplings for strength and longevity
- Clear-coated twill weave carbon fiber housing and intake tube for a sleek, high-gloss finish that enhances engine bay aesthetics
Construction & Design
The Momentum GT intake features a unique, computer-designed one-piece carbon fiber housing that is both lightweight and heat-resistant. Its patent-pending filter-to-housing interface simplifies installation while maintaining a sealed environment to protect the intake charge from heat soak. The intake tube is crafted from the same high-gloss twill weave carbon fiber, engineered to optimize airflow dynamics and reduce weight compared to the original equipment system.
The Pro Dry-S air filter is a standout component, constructed with three progressive layers of synthetic media that provide excellent dust-holding capacity and filtration efficiency without the need for oiling. Its inverted top design increases filter surface area, extending service intervals and making maintenance straightforward.
Performance & Sound
By significantly increasing airflow and reducing intake restriction, this cold air intake system delivers measurable horsepower and torque improvements, enhancing acceleration and throttle response. The carbon fiber construction also helps reduce heat transfer, ensuring cooler, denser air reaches the engine for optimal combustion. Additionally, the intake produces a more aggressive induction sound that complements the performance character of the 6.4L SRT engines without being overly loud or intrusive.
Installation & Fitment
The aFe Momentum GT Carbon Fiber Cold Air Intake is designed for a direct bolt-on installation using factory mounting locations and air inlets, requiring no permanent modifications or cutting. The system includes all necessary hardware, and its simplified design with fewer parts ensures a straightforward and secure fitment process. Installation can typically be completed with basic hand tools in under an hour.
What's Included
- One-piece carbon fiber intake housing
- Carbon fiber intake tube
- 8-1/2" tall Pro Dry-S washable and reusable air filter
- Reinforced silicone couplings
- Premium stainless-steel T-bolt clamps
- All necessary mounting hardware and instructions
Ideal For
This intake system is ideal for Jeep Grand Cherokee 6.4L SRT8 and Dodge Durango 6.4L 392 owners who want to maximize their vehicle’s performance potential with a lightweight, durable, and visually striking cold air intake. It suits enthusiasts looking for reliable power gains, improved throttle response, and enhanced engine sound without compromising daily drivability or requiring complex installation.
Emissions Note
Some or all applications of this product are 50-state emissions exempt. Please refer to CARB EO# D-550-58 for specific details and compliance information.
Ripp HEMI High Performance Coil Packs
05-25 5.7L, 6.1L, 6.2L, & 6.4L HEMI Engines
MV8-CPK (8 Coilpacks)
Our coil pack is engineered from the ground up with higher quality materials, and increased amount of windings (turn ratio) in the primary and secondary winding. This provides a boost in millijoule power output, and this results in an increase in spark energy. With a stronger spark, cylinder flame speed is increased and thus adding up to an additional 20hp on the 5.7L and 25-30whp on the 6.4L. With this increased power output, you can expect a more responsive throttle input and a better driving experience overall. (For more technical information please see the tech notes below.)
Don't forget a fresh set of spark plugs. We recommend NGK Spark Plugs.
- Each order Includes all 8 coilpacks
- Direct bolt-on installation, plug and play
- Highest quality internal components and finish
- MOPAR Orange, Purple, Green or Steel Gray high temperature heat resistant outer housing
- Heat resistant silicone boot
- Compatible with Naturally Aspirated and Forced Induction engines
- Improved Throttle Response
- Improved POWER
- Improved MPG
- No Tuning Required!!
- Heavy duty primary copper core winding.
- Higher quality Iron core with stronger laminations.
- Increased amount of secondary core windings.
- Precision Spool to promote Orthocycling winding and mitigate wild winding.
- Sustained power delivery even at high RPM operation
- High Density Polymer Housing.
- Heavy Duty, high-temperature, epoxy filled housing resists shock and vibration. Our dielectric compound completely penetrates coil windings assuring perfect insulation even upon exposure to high voltage conditions. Engineered to resist humidity, wear, vibration, impact and chemicals such as gasoline, oils and brake fluids. Will not degrade or crack even under severe thermal cycling.
*Not compatible with older generation 2003-2005 "gen III" engines.* Please double check the year make and model of your vehicle and engine type.
Fits the following vehicles:
- 2005 - Current: Dodge Charger/ Challenger V8
- 2005 - Current: Chrysler 300 V8
- 2007 - Current: RAM 1500 V8 (note: early 2007 vehicles might have have a gen III engine)
- 2007 - Current: Jeep Grand Cherokee V8 (note: early 2007 vehicles might have have a gen III engine) 5.7, SRT
- 2007 - Current: Dodge Durango V8 (note: early 2007 vehicles might have have a gen III engine) 5.7, SRT
- 2021 - Current: Jeep Wrangler rubicon w/ 392 engine (V8)
- All Scat Pack, 392, SRT and Hellcat models.
- And many more V8 Hemi vehicles.
TECH NOTES
RIPP Technical information about cylinder flame speed and how an upgraded ignition system will directly effect power.
An Internal combustion engine's "flame speed" refers to the rate at which the air-fuel mixture burns during the combustion process. This speed significantly impacts engine performance and efficiency. The faster flame speed will increase cylinder pressure. When a spark is hotter, it ignites the air-fuel mixture more rapidly, leading to faster combustion, and an increase in pressure. Higher cylinder pressure = more torque pushing down on the piston.
Flame front propagation speed: As the flame front propagates faster across the combustion chamber, the fuel burns more efficiently, releasing more energy. This, in turn, enhances the engine's power and responsiveness. Additionally, with a faster flame speed, the combustion process is completed sooner, reducing the chance of incomplete burn or unburned hydrocarbons being released into the exhaust gases. In summary, optimizing the flame speed by utilizing more spark energy can significantly improve engine performance. It enables the engine to operate more efficiently, delivering increased power output, improved fuel economy.
Spark Energy is measured in Millijoules (mj). A Factory coilpack will generate 35.8mj. This mj value is considered low for the cylinder displacement value, piston surface area and air/fuel mixture. A RIPP coilpack will generate 53.6mj. This 17.8mj increase over stock will dramatically increase pressure per square inch across the piston surface. At first start up you'll immediately notice a smoother operating engine, and a "calmer" exhaust tone. This is due to less waste or unburnt hydrocarbons and fuel. Engine response and engine horse power will increase throughout the RPM range.
E3 Spark Plugs
11-24 Chrysler 300 / Dodge Challenger / Charger 6.4L 392
E3.74
The E3.74 Automotive Spark Plug is a high-performance replacement plug designed for vehicle. Engineered with E3’s patented DiamondFIRE technology, the plug promotes a faster, more complete combustion cycle—boosting horsepower, increasing fuel efficiency, and reducing emissions over the long term. This spark plug features a 14mm thread diameter, 1.000" reach, and taper seat to ensure a precise fit for your vehicle engine. Its triple-legged ground electrode secures the DiamondFIRE tip, enhancing heat dissipation and generating greater turbulence in the combustion chamber for maximum efficiency. The fixed-gap design eliminates the need for adjustments and delivers consistent spark performance across thousands of miles. Backed by a 5-year or 100,000-mile warranty, the E3.74 offers durability and peak engine performance for drivers who demand more from their vehicle.
- Patented DiamondFIRE Technology: Optimizes combustion for better throttle response, horsepower, and fuel economy
- Three-Leg Ground Electrode: Stabilizes the electrode for enhanced heat transfer and increased combustion turbulence
- Fixed DiamondFIRE Spark Gap: Factory-set for consistent ignition and long-term reliability—no gapping required
- Extended Service Life: Built to perform for 100,000 miles or 5 years under typical driving conditions
- Precision Fit: 14mm thread diameter, 1.000" reach, 5/8" hex, taper seat design
- Lower Emissions: Reduces unburned hydrocarbons for cleaner, more efficient engine performance
Fast Hemis One-Click Stage 1 Kit: 2011-2021 Jeep Grand Cherokee 6.4L SRT (+65HP)
- Unit price
- /per
This One-Click Stage 1 Kit gives your 2011-2021 Jeep Grand Cherokee 6.4L SRT a complete bolt-on upgrade for about +65 HP with no tuning. The aFe Momentum GT Carbon Fiber cold air intake uses a carbon fiber housing and Pro DRY S filter to deliver cooler, denser air for stronger horsepower, torque, and throttle response. Ripp's HEMI coil packs add stronger spark energy for more efficient combustion, and E3 DiamondFIRE spark plugs improve power, fuel economy, and emissions with a design built for up to 100,000 miles. Everything bolts on in a few hours with basic tools.
We built this bundle around three proven, bolt-on upgrades that work together. The aFe intake improves airflow and power, the Ripp coils deliver the spark to use it, and the E3 plugs complete the ignition path with better burn and longevity. Each part is widely used on Grand Cherokees, and together they give a noticeable gain without touching the PCM or risking reliability. One order, one install, one clear step up in performance.
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FastHemis One-Click Stage 1 Kit Bundle
Fits 2011–2021 Jeep Grand Cherokee 6.4L SRT
Why Buy the Bundle?
The FastHemis One-Click Stage 1 Kit offers a seamless upgrade path for your Jeep Grand Cherokee 6.4L SRT, combining expertly selected components designed to work in harmony. This bundle provides a hassle-free shopping experience with all necessary parts included, ensuring perfect fitment and compatibility. Hand-picked by performance specialists, each item delivers targeted improvements to power, throttle response, and combustion efficiency. By choosing this kit, you benefit from premium parts at a better value than purchasing individually, making it an ideal choice for enthusiasts seeking reliable, bolt-on gains.
What's Included
- aFe Momentum GT Carbon Fiber Cold Air Intake: A lightweight, high-flow intake system featuring a Pro Dry-S filter that replaces the restrictive factory setup to enhance airflow and throttle response for the 2012–2021 Jeep Grand Cherokee 6.4L SRT8 and compatible Dodge Durango models.
- Ripp HEMI High Performance Coil Packs: Upgraded ignition coil packs engineered with increased windings and superior materials to deliver a stronger spark, boosting cylinder flame speed and improving power output by up to 30 wheel horsepower on 6.4L engines. Includes all eight coil packs with heat-resistant housings for durability.
- E3.74 Automotive Spark Plugs: High-performance spark plugs featuring patented DiamondFIRE technology and a triple-legged ground electrode to promote faster, more complete combustion. Designed for a precise fit with a fixed gap for consistent ignition and extended service life.
Bundle Overview
This Stage 1 Kit combines enhanced intake, ignition, and spark plug technologies to optimize your Jeep Grand Cherokee’s 6.4L SRT engine performance. The aFe Momentum GT intake increases airflow with its carbon fiber construction and high-efficiency filter, while the Ripp coil packs deliver a hotter, more powerful spark that accelerates combustion speed and improves throttle response. Complementing these upgrades, the E3 spark plugs ensure consistent ignition and efficient fuel burn, supporting smoother engine operation and improved power delivery.
Together, these components form a cohesive system that elevates engine efficiency and responsiveness without requiring tuning. This bundle is perfect for enthusiasts looking to unlock additional horsepower and torque with reliable, bolt-on parts suited for daily driving and spirited performance.
Expected Performance
The Ripp coil packs alone contribute up to an additional 25–30 wheel horsepower on the 6.4L HEMI, thanks to increased spark energy and improved combustion dynamics. The intake and spark plugs support these gains by enhancing airflow and combustion efficiency, resulting in a more responsive and powerful driving experience.
Key Features
This bundle combines advanced materials and engineering for lasting performance:
- Carbon fiber intake tube for lightweight strength and improved airflow
- Pro Dry-S high-flow air filter for superior filtration and easy maintenance
- High-density polymer and heat-resistant coil pack housings for durability under extreme conditions
- Increased coil winding turns for stronger, more consistent spark energy
- Patented DiamondFIRE spark plug technology for optimized combustion and fuel efficiency
- Triple-legged ground electrode design to enhance heat dissipation and combustion turbulence
- Direct bolt-on installation with no tuning required for all components
- Precision fitment tailored specifically for 6.4L HEMI engines in Jeep Grand Cherokee and compatible models
aFe Momentum GT Carbon Fiber Cold Air Intake
2012–2021 Jeep Grand Cherokee 6.4L SRT8, 2018–2025 Dodge Durango 6.4L 392
Part #: 58-10001D
Overview
The aFe Momentum GT Carbon Fiber Cold Air Intake with Pro Dry-S filter is engineered to elevate the performance of your Jeep Grand Cherokee 6.4L SRT8 or Dodge Durango 6.4L 392. Designed for enthusiasts seeking a significant power boost and enhanced throttle response, this intake system replaces the restrictive factory air intake with a lightweight, high-flow carbon fiber assembly. It delivers improved airflow and filtration while reducing overall intake weight, making it an ideal upgrade for street and light off-road use.
With a focus on durability, efficiency, and ease of installation, the Momentum GT intake offers a perfect balance of performance and convenience for drivers who demand more from their SRT-powered vehicles.
Key Features
This intake system combines advanced materials and innovative design to maximize engine breathing and performance gains:
- Dyno-proven power gains of up to +35 horsepower and +31 lb-ft of torque
- Outflows the factory intake by 45%, with a measured airflow of 615 CFM at 7" H2O
- Race-inspired, lightweight 100% carbon fiber construction for reduced weight and enhanced durability
- Massive 8-1/2" tall, three-layer Pro Dry-S air filter featuring oil-free synthetic media for superior filtration and easy maintenance
- Utilizes factory mounting points and both original equipment air inlets to ensure maximum airflow and a secure fit
- Washable and reusable air filter media designed for street and light off-road conditions
- Premium stainless-steel T-bolt clamps and reinforced silicone couplings for strength and longevity
- Clear-coated twill weave carbon fiber housing and intake tube for a sleek, high-gloss finish that enhances engine bay aesthetics
Construction & Design
The Momentum GT intake features a unique, computer-designed one-piece carbon fiber housing that is both lightweight and heat-resistant. Its patent-pending filter-to-housing interface simplifies installation while maintaining a sealed environment to protect the intake charge from heat soak. The intake tube is crafted from the same high-gloss twill weave carbon fiber, engineered to optimize airflow dynamics and reduce weight compared to the original equipment system.
The Pro Dry-S air filter is a standout component, constructed with three progressive layers of synthetic media that provide excellent dust-holding capacity and filtration efficiency without the need for oiling. Its inverted top design increases filter surface area, extending service intervals and making maintenance straightforward.
Performance & Sound
By significantly increasing airflow and reducing intake restriction, this cold air intake system delivers measurable horsepower and torque improvements, enhancing acceleration and throttle response. The carbon fiber construction also helps reduce heat transfer, ensuring cooler, denser air reaches the engine for optimal combustion. Additionally, the intake produces a more aggressive induction sound that complements the performance character of the 6.4L SRT engines without being overly loud or intrusive.
Installation & Fitment
The aFe Momentum GT Carbon Fiber Cold Air Intake is designed for a direct bolt-on installation using factory mounting locations and air inlets, requiring no permanent modifications or cutting. The system includes all necessary hardware, and its simplified design with fewer parts ensures a straightforward and secure fitment process. Installation can typically be completed with basic hand tools in under an hour.
What's Included
- One-piece carbon fiber intake housing
- Carbon fiber intake tube
- 8-1/2" tall Pro Dry-S washable and reusable air filter
- Reinforced silicone couplings
- Premium stainless-steel T-bolt clamps
- All necessary mounting hardware and instructions
Ideal For
This intake system is ideal for Jeep Grand Cherokee 6.4L SRT8 and Dodge Durango 6.4L 392 owners who want to maximize their vehicle’s performance potential with a lightweight, durable, and visually striking cold air intake. It suits enthusiasts looking for reliable power gains, improved throttle response, and enhanced engine sound without compromising daily drivability or requiring complex installation.
Emissions Note
Some or all applications of this product are 50-state emissions exempt. Please refer to CARB EO# D-550-58 for specific details and compliance information.
Ripp HEMI High Performance Coil Packs
05-25 5.7L, 6.1L, 6.2L, & 6.4L HEMI Engines
MV8-CPK (8 Coilpacks)
Our coil pack is engineered from the ground up with higher quality materials, and increased amount of windings (turn ratio) in the primary and secondary winding. This provides a boost in millijoule power output, and this results in an increase in spark energy. With a stronger spark, cylinder flame speed is increased and thus adding up to an additional 20hp on the 5.7L and 25-30whp on the 6.4L. With this increased power output, you can expect a more responsive throttle input and a better driving experience overall. (For more technical information please see the tech notes below.)
Don't forget a fresh set of spark plugs. We recommend NGK Spark Plugs.
- Each order Includes all 8 coilpacks
- Direct bolt-on installation, plug and play
- Highest quality internal components and finish
- MOPAR Orange, Purple, Green or Steel Gray high temperature heat resistant outer housing
- Heat resistant silicone boot
- Compatible with Naturally Aspirated and Forced Induction engines
- Improved Throttle Response
- Improved POWER
- Improved MPG
- No Tuning Required!!
- Heavy duty primary copper core winding.
- Higher quality Iron core with stronger laminations.
- Increased amount of secondary core windings.
- Precision Spool to promote Orthocycling winding and mitigate wild winding.
- Sustained power delivery even at high RPM operation
- High Density Polymer Housing.
- Heavy Duty, high-temperature, epoxy filled housing resists shock and vibration. Our dielectric compound completely penetrates coil windings assuring perfect insulation even upon exposure to high voltage conditions. Engineered to resist humidity, wear, vibration, impact and chemicals such as gasoline, oils and brake fluids. Will not degrade or crack even under severe thermal cycling.
*Not compatible with older generation 2003-2005 "gen III" engines.* Please double check the year make and model of your vehicle and engine type.
Fits the following vehicles:
- 2005 - Current: Dodge Charger/ Challenger V8
- 2005 - Current: Chrysler 300 V8
- 2007 - Current: RAM 1500 V8 (note: early 2007 vehicles might have have a gen III engine)
- 2007 - Current: Jeep Grand Cherokee V8 (note: early 2007 vehicles might have have a gen III engine) 5.7, SRT
- 2007 - Current: Dodge Durango V8 (note: early 2007 vehicles might have have a gen III engine) 5.7, SRT
- 2021 - Current: Jeep Wrangler rubicon w/ 392 engine (V8)
- All Scat Pack, 392, SRT and Hellcat models.
- And many more V8 Hemi vehicles.
TECH NOTES
RIPP Technical information about cylinder flame speed and how an upgraded ignition system will directly effect power.
An Internal combustion engine's "flame speed" refers to the rate at which the air-fuel mixture burns during the combustion process. This speed significantly impacts engine performance and efficiency. The faster flame speed will increase cylinder pressure. When a spark is hotter, it ignites the air-fuel mixture more rapidly, leading to faster combustion, and an increase in pressure. Higher cylinder pressure = more torque pushing down on the piston.
Flame front propagation speed: As the flame front propagates faster across the combustion chamber, the fuel burns more efficiently, releasing more energy. This, in turn, enhances the engine's power and responsiveness. Additionally, with a faster flame speed, the combustion process is completed sooner, reducing the chance of incomplete burn or unburned hydrocarbons being released into the exhaust gases. In summary, optimizing the flame speed by utilizing more spark energy can significantly improve engine performance. It enables the engine to operate more efficiently, delivering increased power output, improved fuel economy.
Spark Energy is measured in Millijoules (mj). A Factory coilpack will generate 35.8mj. This mj value is considered low for the cylinder displacement value, piston surface area and air/fuel mixture. A RIPP coilpack will generate 53.6mj. This 17.8mj increase over stock will dramatically increase pressure per square inch across the piston surface. At first start up you'll immediately notice a smoother operating engine, and a "calmer" exhaust tone. This is due to less waste or unburnt hydrocarbons and fuel. Engine response and engine horse power will increase throughout the RPM range.
E3 Spark Plugs
11-24 Chrysler 300 / Dodge Challenger / Charger 6.4L 392
E3.74
The E3.74 Automotive Spark Plug is a high-performance replacement plug designed for vehicle. Engineered with E3’s patented DiamondFIRE technology, the plug promotes a faster, more complete combustion cycle—boosting horsepower, increasing fuel efficiency, and reducing emissions over the long term. This spark plug features a 14mm thread diameter, 1.000" reach, and taper seat to ensure a precise fit for your vehicle engine. Its triple-legged ground electrode secures the DiamondFIRE tip, enhancing heat dissipation and generating greater turbulence in the combustion chamber for maximum efficiency. The fixed-gap design eliminates the need for adjustments and delivers consistent spark performance across thousands of miles. Backed by a 5-year or 100,000-mile warranty, the E3.74 offers durability and peak engine performance for drivers who demand more from their vehicle.
- Patented DiamondFIRE Technology: Optimizes combustion for better throttle response, horsepower, and fuel economy
- Three-Leg Ground Electrode: Stabilizes the electrode for enhanced heat transfer and increased combustion turbulence
- Fixed DiamondFIRE Spark Gap: Factory-set for consistent ignition and long-term reliability—no gapping required
- Extended Service Life: Built to perform for 100,000 miles or 5 years under typical driving conditions
- Precision Fit: 14mm thread diameter, 1.000" reach, 5/8" hex, taper seat design
- Lower Emissions: Reduces unburned hydrocarbons for cleaner, more efficient engine performance
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YEARMAKEMODELSUBMODEL2015 - 2021JeepGrand Cherokee6.4L SRT
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Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.
Standard shipping
Free Standard Shipping on orders over $250. Select “Free Shipping” at checkout.
Free Easy Returns
Need to return an item? We make it easy. Email us and we'll send you a free return label with instructions on how to return.