5.9L / 6.7L Diesel Engine Upgrades
Flowmaster Super 40 Series Chambered Muffler: Fits most Dodge Ram / Challenger / Charger
Flowmaster
Regular price
$168.95
$149.95
11% off
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter CARB: Dodge Ram 1500 94-95 5.2L/3.9L, Dodge Ram 2500 94-95 5.2L V8
Magnaflow
$1,485.00
- Unit price
- /per
Magnaflow California Grade Direct-Fit Catalytic Converter: Dodge Ram 2500 / Ram 3500 94-95 8.0L V10
Magnaflow
$1,398.00
- Unit price
- /per
MagnaFlow California Grade Direct-Fit Catalytic Converter: Dodge Ram 2500 / Ram 3500 94-95 8.0L V10
Magnaflow
$1,369.00
- Unit price
- /per
Magnaflow California Grade Universal Catalytic Converter: Fits Most Dodge/Jeep 8.0L/5.2L/3.9L (93-95)
Magnaflow
$523.00
- Unit price
- /per
Magnaflow Direct-Fit Catalytic Converter 2002 Dodge Ram 1500 5.9L
Magnaflow
$2,670.00
- Unit price
- /per
MagnaFlow Direct Fit Catalytic Converter OEM Grade (Spun Body): Dodge Ram 1500 02 5.7L Hemi
Magnaflow
$1,100.00
- Unit price
- /per
Magnaflow Direct Fit Catalytic Converter OEM Federal/EPA (F&R): Dodge Ram 1500 02-03 5.7L Hemi
Magnaflow
$636.00
- 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
PPE Fuel Rail Pressure Gauge: Dodge Ram / Challenger / Charger 2003-2017
PPE
$139.99
- Unit price
- /per
Liqui Moly Synthoil Energy A40 Motor Oil: Fits Most Chrysler / Dodge / Jeep / Ram Models
LIQUI MOLY
$125.70
- Unit price
- /per
Deatschwerks 1500cc Fuel Injectors: Fits Most Dodge/Ram (03-23)
Deatschwerks
$1,589.00
- Unit price
- /per
Liqui Moly Synthoil Energy A40 Motor Oil: Fits Most Chrysler / Dodge / Jeep / Ram Models
LIQUI MOLY
$383.80
- Unit price
- /per
Kleinn RSRAM71 Remote Start: Fits Most Chrysler/Dodge/Jeep/Ram (11-17)
Kleinn Air Horns
Regular price
$272.99
$239.99
12% off
- Unit price
- /per
Injen Evolution Cold Air Intake System Oiled Filter: Ram 2500 / 3500 19-22 6.7L Diesel
Injen
$442.20
- Unit price
- /per
Injen EVO Evolution Cold Air Intake System Dry Filter (F&R): Ram 2500 / 3500 19-22 6.7L Diesel
Injen
$442.20
- Unit price
- /per
Banks Power Monster-Ram Intake System 3-3/8in Inlet (F&R): Ram 2500 / 3500 19-24 6.7L Diesel
Banks Power
Regular price
$831.11
$748.00
10% off
- Unit price
- /per
Banks Power Monster-Ram Intake System 3-3/8in Inlet (F&R): Ram 2500 / 3500 19-24 6.7L Diesel
Banks Power
Regular price
$831.11
$748.00
10% off
- Unit price
- /per
Banks Power Monster-Ram Intake System (F&R): Ram 2500 / 3500 19-24 6.7L Diesel
Banks Power
Regular price
$797.78
$718.00
10% off
- Unit price
- /per
Mishimoto Factory-Fit Boot Kit DuraCore: Ram 2500 / 3500 2019-2024 6.7L Diesel
Mishimoto
Regular price
$326.00
$295.95
9% off
- Unit price
- /per
Mishimoto Intercooler Kit WBK Pipes: Ram 2500 / 3500 2019-2024 6.7L Diesel
Mishimoto
Regular price
$2,397.00
$2,178.95
9% off
- Unit price
- /per
Mishimoto Intercooler Kit SL Cooler P Pipes: Ram 2500 / 3500 2019-2024 6.7L Diesel
Mishimoto
Regular price
$2,397.00
$2,178.95
9% off
- Unit price
- /per
Mishimoto Intercooler Kit 63% Larger Core: Ram 2500 / 3500 2019-2024 6.7L Diesel
Mishimoto
Regular price
$2,397.00
$2,178.95
9% off
- Unit price
- /per
Mishimoto Intercooler Kit WBK Pipes: Ram 2500 / 3500 2019-2024 6.7L Diesel
Mishimoto
Regular price
$2,397.00
$2,178.95
9% off
- Unit price
- /per
Liqui Moly Fully Synthetic Hypoid Gear Oil SAE 75W140: Fits Most Chrysler/Dodge/Jeep/Ram (20-26)
LIQUI MOLY
$257.70
- Unit price
- /per
Liqui Moly Fully Synthetic Hypoid Gear Oil: Fits Most Chrysler/Dodge/Jeep/Ram (20-26)
LIQUI MOLY
$173.70
- Unit price
- /per
Mishimoto Silicone Coolant Hose Kit: Ram 2500 / 3500 19-24 6.7L Diesel w/ Red
Mishimoto
Regular price
$352.00
$319.95
9% off
- Unit price
- /per
Mishimoto Silicone Coolant Hose Kit: Ram 2500 / 3500 19-24 6.7L Diesel
Mishimoto
Regular price
$352.00
$319.95
9% off
- Unit price
- /per
K&N 63 Series Cold Air Intake w/ Closed Box: Ram 2500 / 3500 19-24 6.7L Diesel
K&N Engineering
$472.99
- Unit price
- /per
K&N Engineering Gunmetal Gray Powder Coated Aluminum Charge Pipe: Ram 2500 / 3500 19-24 6.7L Diesel
K&N Engineering
$367.99
- Unit price
- /per
AMP Research Air Tank Relocation Kit: Ram 2500 / 3500 19-23 6.7L Diesel/6.4L
AMP Research
$89.99
- Unit price
- /per
AMP Research Air Tank Relocation Kit: Ram 2500 / 3500 19-24 6.7L Diesel/6.4L
AMP Research
$69.99
- Unit price
- /per
K&N 63 Series Cold Air Intake: Ram 2500 / 3500 19-24 6.7L Diesel
K&N Engineering
$419.99
- Unit price
- /per
Mishimoto Titanium Turbo Blanket (HOT SIDE): Dodge Ram 2500 / 3500 1996-2002 5.9L Diesel
Mishimoto
Regular price
$191.00
$173.95
9% off
- Unit price
- /per
Mishimoto High-Temp Thermostat 190°F: Dodge Ram 2500 / 3500 1994-1998 5.9L Cummins
Mishimoto
Regular price
$92.00
$83.95
9% off
- Unit price
- /per
You’re viewing 281-320 of 674 products
5.9L Magnum & 6.7L Cummins Diesel Engine Upgrades for Torque and Reliability
The 5.9L Magnum V8 and 6.7L Cummins inline-6 are iconic diesel engines celebrated for their torque, towing strength, and durability. Whether you own a classic Ram with the 5.9L or a modern heavy-duty Ram powered by the 6.7L Cummins, upgrading these engines with diesel-specific performance parts can significantly enhance power delivery and dependability.
How Diesel Engine Upgrades Improve Your 5.9L and 6.7L Performance
Diesel engines like the 5.9L Magnum and 6.7L Cummins thrive on torque and efficiency. Upgrades focused on intake airflow, exhaust flow, and fuel delivery optimize combustion and turbocharger response. These improvements translate to stronger towing capability, better throttle response, and sustained power under load.
- High-flow intake and exhaust systems reduce restrictions and improve turbo efficiency
- Turbocharger and intercooler upgrades enhance boost control and charge air cooling
- Fuel system enhancements ensure consistent fuel delivery for higher power demands
- Performance tuning calibrates engine parameters for optimized power and reliability
Choosing the Right Upgrades for Your Diesel Engine Goals
When selecting upgrades for your 5.9L or 6.7L diesel, consider your primary use—whether it’s daily driving, heavy towing, or performance builds. Intake and exhaust modifications improve airflow, while turbocharger enhancements increase boost and efficiency. Fuel system upgrades become critical as power levels rise, and tuning ties all components together for smooth operation.
Maximize Your Diesel Engine’s Potential with FastHemis Upgrades
From intake manifolds and turbochargers to fuel system components and tuning tools, FastHemis offers a comprehensive selection of parts tailored to the 5.9L Magnum and 6.7L Cummins platforms. Explore our collection to find reliable, performance-driven upgrades that maintain the rugged durability these engines are known for.