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12V 5.9 Cummins (89-97) Parts

If you have a 12V Cummins engine in your Dodge truck, you’re already familiar with the power and performance it’s capable of delivering. But there’s always a way to get a little bit more from it, which is why Powerhouse Diesel offers a wide selection of 12V Cummins parts to help you fine-tune it and keep it in good health. Whether you’re looking for 12V Cummins upgrades or just what you need for routine maintenance, you can trust our vast range of products to provide you with exactly what you want. Take a look at our 12 valve Cummins performance parts here on this page, then let us know if you have any questions:

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    Cree LED Light Bar 20 Inch Dual Row Black Series w/Amber DRL Rough Country

    Rough Country
    $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95

    The sun never sets on a vehicle equipped with Rough Country's sleek 20 Inch LED Light Bar. With a powerful 18,000 Lumen 200 Watt output, this LED l...

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    $229.95 - $229.95
    $229.95
    $229.95 - $229.95
    $229.95
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    40-inch Cree LED Light Bar - (Single Row Black Series) Rough Country

    Rough Country
    $219.95 - $219.95
    $219.95
    $219.95 - $219.95
    $219.95

    Command The Dark: Stay out later on the trails with Rough Country's powerful 40-inch Black-Series Dual Row Curved LED Light Bar. With a jaw-droppin...

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    $219.95 - $219.95
    $219.95
    $219.95 - $219.95
    $219.95
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    Hard Shell Roof Top Tent Rack Mount Rough Country

    Rough Country
    $1,999.95 - $1,999.95
    $1,999.95
    $1,999.95 - $1,999.95
    $1,999.95

    Convenience and Comfort. Camping has never been easier! Rough Country's Hard Shell Roof Top Tent sets up in minutes and lets you enjoy the adventur...

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    $1,999.95 - $1,999.95
    $1,999.95
    $1,999.95 - $1,999.95
    $1,999.95
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    Quick Release Hawse Fairlead License Plate Mount Rough Country

    Rough Country
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    Take your vehicle from street legal to trail ready in a split second with Rough Country's Quick Release Hawse Fairlead License Plate Mount. Front m...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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    3/4-inch Round U-bolts (4-1/6 x 17) Rough Country

    Rough Country
    $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95

    Replace your worn out U-bolts with Rough Country's durable U-Bolt kits! Our steel U-Bolt kits are offered in a variety of sizes and styles to suit ...

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    $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95
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    30-Inch Curved Cree LED Light Bar - Dual Row Chrome Series w/ Cool White DRL Rough Country

    Rough Country
    $314.95 - $314.95
    $314.95
    $314.95 - $314.95
    $314.95

    Command The Dark: Stay out later on the trails with Rough Country's 30-inch Dual Row CREE LED Light Bar with Cool White DRL. With a powerful 27,000...

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    $314.95 - $314.95
    $314.95
    $314.95 - $314.95
    $314.95
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    20-Inch Cree LED Light Bar - Dual Row Chrome Series w/ Cool White DRL Rough Country

    Rough Country
    $224.95 - $224.95
    $224.95
    $224.95 - $224.95
    $224.95

    The sun never sets on a vehicle equipped with Rough Country's sleek 20-inch LED Light Bar. With a powerful 18,000 Lumen 200 Watt output, this LED l...

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    $224.95 - $224.95
    $224.95
    $224.95 - $224.95
    $224.95
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    LED Light Pair 2 Inch Square Flood Swivel Mount Rough Country

    Rough Country
    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

    Superior Lighting Solution. Rough Country's 2-Inch Square LED Lights are a great way to add style and safety to your ride. Loaded with 5-Watt Cree ...

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    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95
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    M1 Shock Shaft Protector Pair Rough Country

    Rough Country
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95

    Added Protection and Durable Construction. Protect your Rough Country M1 Monotube shocks with Rough Country's M1 Shock Shaft Protectors. This innov...

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    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95
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    Universal Air Compressor Mounting Kit Rough Country

    Rough Country
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    A Dependable Solution. Rough Country's Universal Air Spring Compressor Mounting Bracket provides an easy and inexpensive way to mount your air comp...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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    6.5 Inch Winch Recovery Ring 41000 LB Capacity Rough Country

    Rough Country
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    Superior Solution. Take your recovery capabilities to the next level with Rough Country's 6.5 inch Recovery Winch Ring. Rough Country's Winch Ring ...

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    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95
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    D Ring Shackles Cast 5/8 Inch Pin Pair Black Rough Country

    Rough Country
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    D-Rings with Durability. When your ride needs extra towing power, trust your safety to Rough Country's sturdy and durable flat black D-rings. Wheth...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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    Kinetic Recovery Rope 1 Inch x 30 Feet 30,000lb Capacity Rough Country

    Rough Country
    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

    Superior Recovery Solution. If you're an off-roading enthusiast, then you know the importance of having a recovery rope on hand. Rough Country's Re...

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    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95
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    Aluminum Winch Shackle/Thimble Rough Country

    Rough Country
    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95

    Upgrade your recovery system with a safer, stronger winch point with Rough Country's Aluminum Winch Shackle. Made from high-quality T-6 billet alum...

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    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95
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    Winch Control Box Pro Series Replacement Rough Country

    Rough Country
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Direct Replacement Part. Get back to winching with Rough Country's Replacement Winch Control Box. This assembly allows you to restore the full func...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
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    Cooler/Fridge Tray Slide Out Rough Country

    Rough Country
    $209.95 - $209.95
    $209.95
    $209.95 - $209.95
    $209.95

    Grab your drinks with ease! Looking for a convenient way to bring your Rough Country Portable Electric Cooler with you on all your outdoor adventur...

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    $209.95 - $209.95
    $209.95
    $209.95 - $209.95
    $209.95
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    Rapid Tire Deflator w/Carrying Case Rough Country

    Rough Country
    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95

    Prep your tires for any off-road situation quickly with Rough Country's Tire Deflator. Air down right before you hit the trail to increase tire tra...

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    $24.95 - $24.95
    $24.95
    $24.95 - $24.95
    $24.95
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    9/16-inch Square U-bolts (3.0 x 13) Rough Country

    Rough Country
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    Replace your worn out U-bolts with Rough Country's durable U-Bolt kits! Our steel U-Bolt kits are offered in a variety of sizes and styles to suit ...

    View full details
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
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    9/16-inch Round U-bolts (3.625 x 12) Rough Country

    Rough Country
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    Replace your worn out U-bolts with Rough Country's durable U-Bolt kits! Our steel U-Bolt kits are offered in a variety of sizes and styles to suit ...

    View full details
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
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    Universal LED RGB/White Dome Light Rough Country

    Rough Country
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    Light up the cabin of your cab with Rough Country's Universal LED Dome Light Kit! This easy-to-install LED Dome Light is both practical and enjoyab...

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    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95
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    Black Series LED 20 Inch Light Slim Line Rough Country

    Rough Country
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    The sun never sets on a vehicle equipped with Rough Country's sleek 20-inch Slimline Cree LED Light Bar. With a powerful 7,200-lumen 100-watt outpu...

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    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
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    V2 Shock Shaft Protector Rough Country

    Rough Country
    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95

    Added Protection and Durable Construction. Protect your Rough Country V2 Monotube shocks with Rough Country's V2 Shock Shaft Protectors. This innov...

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    $19.95 - $19.95
    $19.95
    $19.95 - $19.95
    $19.95
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    Air Spring Cradle Kit

    Rough Country
    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    A Dependable Solution. So, you've added an airbag system to improve the ride quality and load carrying capacity, but you don't want to lose your su...

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    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
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    Overland Collapsible Fire Pit Carry Bag Rough Country

    Rough Country
    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    Portability and readiness are two major components of ensuring that you are prepared for your camping adventures. We've designed a carry bag for yo...

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    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

The Best 12V Cummins Performance Parts for Your Truck

When it comes to getting more out of your engine, having the right parts and products matter a lot. Fortunately, Powerhouse Diesel offers a huge inventory of offerings from many of the top names in the industry. From fuel filters and gaskets to transmissions and turbochargers, we’re your complete source for everything to boost what your engine is capable of delivering. We carry parts from leading brands including industrial injection, Smeding and fleece performance.

But it’s more than our extensive range of products that makes us the best place to shop. We understand that trying to sort through your options can be confusing at times, but our team of qualified experts has all the knowledge and expertise needed to help you narrow down your search. We can point you in the right direction and help you find the product that’s perfect for what you want. 

If you want to learn more about all the various 12V Cummins parts and accessories we have to offer, browse through our selection on this page or reach out to speak with an experienced member of our team today. 

Shop 12V Cummins Parts by Category

Browse parts for your 1989-1998 Dodge Ram 5.9L 12-valve Cummins by system below.

12V Cummins Fuel System & Injectors

Pump governor spring kits, delivery valves, fuel filters, and performance 
upgrades - plus 12V Cummins fuel injectors for stock replacement and 
high-power builds. Shop all 12V Cummins fuel system parts.

12V Cummins Engine Internals

Rod bearings, head studs, valve cover gaskets, and rebuild components 
from trusted suppliers. Browse 12V Cummins engine parts.

12V Cummins Intake & Cooling

Cold-air intakes, coolant filters, and intercooler upgrades to lower 
intake temps and protect your cooling system. Browse 12V Cummins 
intakes and cooling.

12V Cummins Transmissions

Rebuild kits, shift kits, and short tailshaft options for the NV4500 
and Getrag transmissions. Browse 12V Cummins transmissions.

12V Cummins Tuning

Tuning options for the 12-valve - from P-pump mechanical modifications 
to electronic tuning accessories. Browse 12V Cummins tuning.

12V Cummins Performance Packages

Bundled upgrade kits for specific horsepower targets - from daily 
driving to competition pulling. Browse 12V Cummins performance packages.

 

12V Cummins FAQs

  • The 12-valve 5.9L Cummins was produced from 1989 through 1998 in Dodge Ram 2500 and 3500 trucks. The 1994-1998 trucks used the P7100 injection pump and are the most sought-after for performance builds.

  • The 12-valve (1989-1998) uses a mechanical injection pump; the 24-valve (1998.5-2002) uses a VP44 electronic pump. The 12-valve is preferred for high-power builds because pump modifications require no tuning software. Have a 1998.5+ truck? Shop our 24V Cummins parts.

  • The P-pump governor spring kit is the cheapest and most impactful first modification. Pair it with matched injectors and a cold-air intake for strong results without opening the engine.

  • The most common issues are worn injection pump delivery valves (hard starts), cracked fuel return lines, worn cam position sensors (1994+), and head gasket failure on high-boost builds. All are well-supported by the aftermarket.

  • A well-maintained 12-valve 5.9L routinely reaches 400,000-500,000 miles. Trucks with 600,000+ miles on the original block are documented. Key factors: regular oil changes, clean fuel, and maintaining the injection pump fuel supply.

Powerhouse Diesel