HEMI EXPERTS OF 20 YEARS

CALL US! (626) 337-3700

Your cart

Your cart is empty

3.7L / 4.0L Engine Upgrades

SELECT YOUR VEHICLE

228 Results

King Engine Bearings Main Bearing Set: Fits Dodge / Jeep / Ram (02-13)
King Engine Bearings Main Bearing Set: Fits Dodge / Jeep / Ram (02-13)
Odyssey Battery HD Extreme AGM Battery: Fits Jeep / Dodge / Ram (99-11)
Odyssey Battery HD Extreme AGM Battery: Fits Jeep / Dodge / Ram (99-11)
usa

Odyssey Battery HD Extreme AGM Battery: Fits Most Dodge/Jeep (99-10)

Odyssey Battery

Regular price $505.20 $451.99 Sale

Unit price
per 

Odyssey Battery HD Perf AGM Battery: Fits Dodge / Jeep / Ram (99-11)
Odyssey Battery HD Perf AGM Battery: Fits Dodge / Jeep / Ram (99-11)
usa

Odyssey Battery HD Perf AGM Battery: Fits Most Dodge/Jeep (99-10)

Odyssey Battery

Regular price $442.73 $390.99 Sale

Unit price
per 

Westin Black Nerf Step Bar Mount Kit: Fits Ram 1500 / 1500 Classic / 2500 / 3500 (09-24)
Westin Black Nerf Step Bar Mount Kit: Fits Ram 1500 / 1500 Classic / 2500 / 3500 (09-24)
Westin Black Nerf Step Bar Mount Kit: Fits Ram 1500 / 2500 / 3500 Quad & Crew Cab (03-24)
Westin Black Nerf Step Bar Mount Kit: Fits Ram 1500 / 2500 / 3500 Quad & Crew Cab (03-24)
Westin Black Running Board Mount Kit: Fits Ram 1500 / 1500 Classic / 2500 / 3500 (09-24)
Westin Black Running Board Mount Kit: Fits Ram 1500 / 1500 Classic / 2500 / 3500 (09-24)
Westin Black Running Board Mount Kit: Fits Ram 1500 / 1500 Classic / 2500 / 3500 (03-24)
Westin Black Running Board Mount Kit: Fits Ram 1500 / 1500 Classic / 2500 / 3500 (03-24)
Westin Black Sensor Relocator (FRONT): Fits Dodge / Ram / Durango (09-24)
Westin Black Sensor Relocator (FRONT): Fits Dodge / Ram / Durango (09-24)

Westin Black Sensor Relocator (FRONT): Fits Most Dodge/Ram (09-24)

Westin

Regular price $135.00 $107.99 Sale

Unit price
per 

Westin Polished Sensor Relocator (FRONT): Fits Dodge Ram / Durango (09-26)
Westin Polished Sensor Relocator (FRONT): Fits Dodge Ram / Durango (09-26)

Westin Polished Sensor Relocator (FRONT): Fits Most Dodge/Ram (09-24)

Westin

Regular price $153.75 $122.99 Sale

Unit price
per 

Mishimoto Screw On Oil Funnel Full Kit: Fits Dodge / Jeep / Chrysler / Ram (06-26)
Mishimoto Screw On Oil Funnel Full Kit: Fits Dodge / Jeep / Chrysler / Ram (06-26)

Mishimoto Screw On Oil Funnel Full Kit: Fits Most Chrysler/Dodge/Jeep/Ram (10-13)

Mishimoto

Regular price $117.00 $105.95 Sale

Unit price
per 

Mishimoto Screw-On Oil Funnel Kit: Fits Chrysler / Dodge / Jeep / Ram (07-13)
Mishimoto Screw-On Oil Funnel Kit: Fits Chrysler / Dodge / Jeep / Ram (07-13)

Mishimoto Screw-On Oil Funnel Kit: Fits Most Chrysler/Dodge/Jeep/Ram (07-13)

Mishimoto

Regular price $30.00 $26.95 Sale

Unit price
per 

K&N Performance Intake Kit: Dodge Dakota 2007-2008
K&N Performance Intake Kit: Dodge Dakota 2007-2008

K&N Performance Intake Kit: Dodge Dakota 07-08 5.7L/3.7L

K&N Engineering

$367.99

Unit price
per 

Spectre Replacement Panel Air Filter: Fits Dodge Ram 1500/2500/3500 2002-2025
Spectre Replacement Panel Air Filter: Fits Dodge Ram 1500/2500/3500 2002-2025
K&N Engineering Oil Filter: Fits Dodge / Jeep / Ram / Wagoneer (09-24)
K&N Engineering Oil Filter: Fits Dodge / Jeep / Ram / Wagoneer (09-24)
Hellwig Hardware Kit: Fits Dodge / Ram (80-22)
Hellwig Hardware Kit: Fits Dodge / Ram (80-22)
usa

Hellwig Hardware Kit: Fits Most Dodge/Ram (94-25)

Hellwig

Regular price $255.55 $178.90 Sale

Unit price
per 

Magnaflow Universal Catalytic Converter: UNIVERSAL
Magnaflow Universal Catalytic Converter: UNIVERSAL
usa

Magnaflow Universal Catalytic Converter: UNIVERSAL

Magnaflow

$523.00

Unit price
per 

Liqui Moly Cera Tec: Fits Most Models
Liqui Moly Cera Tec: Fits Most Models

Liqui Moly Cera Tec: Fits Most Models

LIQUI MOLY

$329.94

Unit price
per 

Liqui Moly Hydraulic Lifter Additive: Fits Most Models
Liqui Moly Hydraulic Lifter Additive: Fits Most Models

Liqui Moly Hydraulic Lifter Additive: Fits Most Models

LIQUI MOLY

$239.88

Unit price
per 

Liqui Moly Valve Clean: Fits Most Models
Liqui Moly Valve Clean: Fits Most Models

Liqui Moly Valve Clean: Fits Most Models

LIQUI MOLY

$191.88

Unit price
per 

Liqui Moly Top Tec ATF 1400: Fits Most Models
Liqui Moly Top Tec ATF 1400: Fits Most Models

Liqui Moly Top Tec ATF 1400: Fits Most Models

LIQUI MOLY

$137.94

Unit price
per 

Liqui Moly Fuel Injection Cleaner: Fits Most Models
Liqui Moly Fuel Injection Cleaner: Fits Most Models

Liqui Moly Fuel Injection Cleaner: Fits Most Models

LIQUI MOLY

$239.88

Unit price
per 

Liqui Moly Speed Tec Gasoline: Fits Most Models
Liqui Moly Speed Tec Gasoline: Fits Most Models

Liqui Moly Speed Tec Gasoline: Fits Most Models

LIQUI MOLY

$107.94

Unit price
per 

Liqui Moly Hybrid Additive: Fits Most Models
Liqui Moly Hybrid Additive: Fits Most Models

Liqui Moly Hybrid Additive: Fits Most Models

LIQUI MOLY

$113.94

Unit price
per 

Liqui Moly Pro-Line Fuel Injection Cleaner: Fits Most Models
Liqui Moly Pro-Line Fuel Injection Cleaner: Fits Most Models
Liqui Moly Pro-Line Engine Flush: Fits Most Models
Liqui Moly Pro-Line Engine Flush: Fits Most Models

Liqui Moly Pro-Line Engine Flush: Fits Most Models

LIQUI MOLY

$197.94

Unit price
per 

Magnaflow Universal Catalytic Converter: Dodge Dakota (89-91) / Ramcharger (89-91)
Magnaflow Universal Catalytic Converter: Dodge Dakota (89-91) / Ramcharger (89-91)
usa

Magnaflow Universal Catalytic Converter: Dodge Dakota 92-11

Magnaflow

$1,328.00

Unit price
per 

Performance Upgrades for Your 3.7L V6 and 4.7L V8 Mopar Engines

The 3.7L V6 and 4.7L V8 engines serve as reliable, versatile Mopar powerplants found in various Dodge and Jeep models. These engines respond well to targeted performance upgrades that improve power delivery, throttle response, and durability while maintaining everyday drivability. Optimizing these engines with the right parts can enhance towing capability and add spirited driving performance.

Key Benefits of Upgrading Your 3.7L and 4.7L Engines

Both the 3.7L and 4.7L engines offer solid factory foundations, but bolt-on upgrades can unlock additional efficiency and power. Enhancements to intake and exhaust systems improve airflow, while ignition and tuning components refine combustion and throttle response. These improvements help your engine run stronger and more efficiently under various driving conditions.

  • Improved torque for towing and hauling
  • Enhanced throttle response and horsepower gains
  • Better engine efficiency and reliability
  • Maintains daily drivability with quality parts

Choosing the Right Performance Parts for Your Mopar V6 or V8

When selecting upgrades for the 3.7L or 4.7L, focus on components that complement the engine’s design and intended use. Cold air intakes and throttle body enhancements increase airflow, while exhaust headers and cat-back systems reduce backpressure. Upgrading ignition components and spark plugs ensures a stronger, more consistent spark. Finally, performance tuners and calibration tools optimize fuel and ignition timing for maximum efficiency.

Explore 3.7L and 4.7L Engine Upgrades at FastHemis

Whether you’re aiming to boost torque for towing or increase horsepower for spirited driving, FastHemis offers a curated selection of performance parts tailored to your 3.7L or 4.7L Mopar engine. Shop our collection to find intake kits, exhaust systems, ignition upgrades, and tuning solutions designed to unlock your engine’s full potential.

SELECT YOUR VEHICLE