3.7L / 4.0L Engine Upgrades
Mahle OE Moly Ring Set: Fits Chrysler Dodge Ram Jeep 2009-2017 5.7L Hemi / 3.6L V6
Mahle OE
$509.46
- Unit price
- /per
Yukon Gear & Axle Bearing Install Kit 9.25in Diff: Fits Dodge Ram 2003-2018 3.6L-8.3L
Yukon Gear & Axle
$442.89
- Unit price
- /per
BD Diesel 2 Low UnLoc (LOCKER): Fits Dodge Ram 1500 / 2500 / 3500 2009-2024
BD Diesel
$200.95
- Unit price
- /per
Kleinn Key Start Air Horn System: Fits Dodge/Ram/Jeep 2008-2020
Kleinn Air Horns
Regular price
$207.99
$179.99
13% off
- Unit price
- /per
Liqui Moly Synthoil Energy A40 Motor Oil: Fits Most Chrysler / Dodge / Jeep / Ram Models
LIQUI MOLY
$383.80
- Unit price
- /per
Liqui Moly Synthoil Energy A40 Motor Oil: Fits Most Chrysler / Dodge / Jeep / Ram Models
LIQUI MOLY
$125.70
- Unit price
- /per
Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge / Ram (04-14)
Flowmaster
Regular price
$112.95
$101.95
10% off
- Unit price
- /per
Liqui Moly Special Tec LL Motor Oil: Fits Most Chrysler / Dodge / Jeep Models
LIQUI MOLY
$107.70
- Unit price
- /per
Gibson Black Ceramic Rolled Edge Angle Exhaust Tip: Fits Most Dodge/Ram 6.2L/5.7L/3.6L/3.0L EcoDiesel (09-23)
Gibson
$304.44
- Unit price
- /per
MBRP Muffler Replacement: Ram 1500/1500 Classic 11-24 5.7L/4.7L/3.6L/3.0L EcoDiesel
MBRP
Regular price
$426.16
$344.99
19% off
- Unit price
- /per
MagnaFlow High Flow Catalytic Converter: Jeep Grand Cherokee 07-10
Magnaflow
$1,409.00
- Unit price
- /per
American Brother Designs Custom Coolant Reservoir Cap Cover: Fits Dodge / Jeep / Ram (09-26)
American Brother Designs
$59.00
- Unit price
- /per
American Brother Designs Custom Washer Fluid Cap Cover: Jeep Wrangler (18-25) & Gladiator (20-25)
American Brother Designs
$59.00
- Unit price
- /per
American Brother Designs Custom Radiator Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs
$59.00
- Unit price
- /per
American Brother Designs Custom Power Steering Fluid Cap Cover: Fits Chrysler / Dodge (05-14)
American Brother Designs
$59.00
- Unit price
- /per
American Brother Designs Power Steering Fluid Cap Cover: 300, Challenger, Charger & Magnum 2005 - 2014
American Brother Designs
Regular price
$109.00
$59.00
46% off
- Unit price
- /per
aFe Magnum FLOW Pro DRY S Air Filter (F&R): Fits Most Dodge 5.7L/5.2L/3.9L (94-10)
aFe
$76.00
- Unit price
- /per
Magnaflow California Grade Universal Catalytic Converter: Fits Most Dodge/Jeep/Ram 6.4L/5.7L/3.7L/3.6L (08-17)
Magnaflow
$1,365.00
- Unit price
- /per
Flowmaster Super 50 Series Chambered Muffler: Fits most Chrysler/Dodge 04-13
Flowmaster
Regular price
$224.95
$199.95
11% off
- Unit price
- /per
Flowmaster 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-13)
Flowmaster
Regular price
$152.95
$135.95
11% off
- Unit price
- /per
Flowmaster Super 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-14)
Flowmaster
Regular price
$168.95
$149.95
11% off
- Unit price
- /per
Flowmaster Super 40 Series Chambered Muffler: Fits Chrysler / Dodge (04-13)
Flowmaster
Regular price
$192.95
$170.95
11% off
- Unit price
- /per
Flowmaster 40 Series Delta Flow Muffler: Fits Chrysler / Dodge / Ram 1500 (04-14)
Flowmaster
Regular price
$168.95
$149.95
11% off
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter CARB: Dodge Ram 1500 02-03 5.7L/3.9L
Magnaflow
$1,728.00
- Unit price
- /per
MagnaFlow HM Grade Direct Fit Catalytic Converter Federal/EPA: Dodge Ram 1500 02-03 5.7L/3.9L
Magnaflow
$442.00
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter CARB Passenger Side: Dodge Ram 1500 04 5.7L Hemi
Magnaflow
$1,363.00
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter California CARB (PASSENGER): Dodge Ram 1500 04 5.7L Hemi
Magnaflow
$1,506.00
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter California CARB (DRIVER): Dodge Ram 1500 05 5.7L Hemi
Magnaflow
$1,115.00
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter OEM Grade (DRIVER SIDE): Dodge Ram 1500 04-05 5.7L Hemi
Magnaflow
$352.00
- Unit price
- /per
MagnaFlow OEM Grade Direct Fit Catalytic Converter (PASSENGER): Dodge Ram 1500 04-05 5.7L Hemi w/ Torca Clamp
Magnaflow
$487.00
- Unit price
- /per
MagnaFlow HM Grade Direct Fit Catalytic Converter (DRIVER): Dodge Ram 1500 04-05 5.7L Hemi
Magnaflow
$335.00
- Unit price
- /per
Magnaflow Universal Cat Converter: Fits Most Dodge/Jeep 8.0L/5.7L/5.2L/4.0L/3.9L (96-06) w/ Cutting & Welding Required
Magnaflow
$711.00
- Unit price
- /per
Magnaflow Universal Catalytic Converter: Dodge Dakota / Ram 1500 05-06 5.7L Hemi
Magnaflow
$806.00
- Unit price
- /per
Magnaflow Street Series Cat-Back Perf Exhaust: Fits Most Dodge/Ram 5.7L/3.6L (09-24)
Magnaflow
$1,274.00
- Unit price
- /per
MagnaFlow Off-Road Cat-Back Exhaust: Fits Most Dodge/Ram 5.7L/3.6L (09-24)
Magnaflow
$886.00
- Unit price
- /per
Magnaflow Street Series SS Cat-Back Perf Exhaust: Fits Most Dodge/Ram 5.7L/3.6L (09-24)
Magnaflow
$1,243.00
- Unit price
- /per
aFe Magnum FLOW Pro 5R Air Filter (F&R): Fits Most Dodge 5.7L/5.2L/3.9L (94-10)
aFe
$71.00
- Unit price
- /per
AFE Air Filter: Fits Most Dodge 5.7L/5.2L/3.9L/3.6L (92-11)
aFe
from $91.00
- Unit price
- /per
2 filter types
PPE Fuel Rail Pressure Gauge: Dodge Ram / Challenger / Charger 2003-2017
PPE
$139.99
- Unit price
- /per
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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.