3.7L / 4.0L Engine Upgrades
Deatschwerks 1500cc Fuel Injectors: Fits Most Dodge/Ram (03-23)
Deatschwerks
$1,589.00
- Unit price
- /per
Flowmaster Force II Cat-Back Exhaust System: Dodge Dakota 2005-2010
Flowmaster
Regular price
$562.95
$519.95
8% off
- Unit price
- /per
Yukon Gear & Axle NV4500 Bearing Kit: Fits Most Dodge 8.0L/5.9L Diesel/5.7L/5.2L/3.9L/3.7L (94-05)
Yukon Gear & Axle
$357.89
- Unit price
- /per
Go Rhino RC2 Mounting Brackets: Fits Most Dodge 5.9L Diesel/5.7L/3.9L/3.7L (02-05)
Go Rhino
Regular price
$81.89
$62.99
23% off
- Unit price
- /per
Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Most Dodge/Ram (09-25)
Go Rhino
Regular price
$201.49
$154.99
23% off
- Unit price
- /per
Go Rhino HD Mounting Brackets for RB Running Boards: Fits Most Dodge/Ram (09-25)
Go Rhino
Regular price
$201.49
$154.99
23% off
- Unit price
- /per
Go Rhino Dominator Extreme Mounting Brackets: Fits Most Dodge/Ram (09-25)
Go Rhino
Regular price
$201.49
$154.99
23% off
- Unit price
- /per
Westin Black Sensor Relocator (FRONT): Fits Most Dodge/Ram (09-24)
Westin
Regular price
$135.00
$107.99
20% off
- Unit price
- /per
MagnaFlow Performance Exhaust Muffler: Fits Most Dodge/Ram 5.7L/3.7L/3.6L (09-14)
Magnaflow
$209.00
- Unit price
- /per
Hellwig Hardware Kit: Fits Most Dodge/Ram (94-25)
Hellwig
Regular price
$255.55
$178.90
30% off
- Unit price
- /per
Magnaflow Universal 2.25in CARB Cat Converter: Dodge Durango / Ram 1500 04-06 5.7L, Jeep Commander 06 3.7L
Magnaflow
$1,139.00
- Unit price
- /per
Magnaflow California Direct-Fit Catalytic Converter: Dodge Ram 1500 07-08 5.7L/3.7L
Magnaflow
$3,584.00
- Unit price
- /per
Magnaflow Universal Catalytic Converter: Dodge Durango 07-09 5.7L, Dodge Ram 1500 07-08 5.7L/3.7L
Magnaflow
$1,418.00
- Unit price
- /per
Liqui Moly Multipurpose Grease: Fits Most Jeep 5.7L/5.2L/4.0L/3.7L/2.5L (91-07)
LIQUI MOLY
$119.40
- Unit price
- /per
Yukon Gear & Axle Rear Wheel Bearing and Seal Kit: Fits Most Dodge/Ram 5.7L/3.7L/3.6L/3.0L EcoDiesel (04-19)
Yukon Gear & Axle
$99.89
- Unit price
- /per
Go Rhino Mounting Brackets for RC2 Bull Bars: Fits Most Dodge 6.7L Diesel/5.9L Diesel/5.7L/3.7L (06-09)
Go Rhino
Regular price
$81.89
$62.99
23% off
- Unit price
- /per
Westin Black Nerf Step Bar Mount Kit: Jeep Commander/Grand Cherokee 05-11 6.1L/5.7L/3.7L/3.6L
Westin
$257.50
- Unit price
- /per
Deatschwerks 1250cc Fuel Injectors: Fits Most Dodge/Ram (03-17)
Deatschwerks
$1,049.00
- Unit price
- /per
Deatschwerks 1200cc Fuel Injectors: Fits Most Dodge/Ram (03-23)
Deatschwerks
$1,049.00
- Unit price
- /per
aFe Sprint Booster V3 Power Converter (F&R): Fits Most Jeep 6.4L/6.1L/5.7L/3.8L/3.7L/3.6L (05-13)
aFe
$314.00
- Unit price
- /per
DiabloSport 9050 - Trinity T2 MX Vehicle Monitor
Diablo Sport
Regular price
$771.95
$726.95
6% off
- Unit price
- /per
Go Rhino OE Xtreme Cab Length Side Step Brackets: Fits Most Dodge (02-09)
Go Rhino
Regular price
$201.49
$154.99
23% off
- Unit price
- /per
Fel-Pro Engine Timing Cover Gasket Set: Fits Most Dodge/Jeep/Ram 5.7L/3.9L/3.7L/3.6L (02-13)
Fel-Pro
$29.40
- Unit price
- /per
Fel-Pro Axle Housing Cover Gasket Octagonal 12 Bolt Hole: Fits Most Dodge/Ram (94-21)
Fel-Pro
$23.00
- Unit price
- /per
Fel-Pro Engine Water Pump Gasket: Fits Most Dodge/Jeep/Ram 5.7L/3.9L/3.7L/3.6L (02-13)
Fel-Pro
$26.34
- Unit price
- /per
Clevite Chrysler V8 5.7L 6.1L 6.4L Hemi Con Rod Bearing Set (CB1808P(8))
Clevite
$250.27
- Unit price
- /per
Weapon R Secret Weapon Air Intake: Dodge Dakota 2005 - 2008 (4.7L V8)
Weapon R
Regular price
$517.13
$399.60
23% off
- Unit price
- /per
Odyssey Battery HD Extreme AGM Battery: Fits Most Dodge/Jeep (99-10)
Odyssey Battery
Regular price
$488.12
$436.99
10% off
- 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.