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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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  • Photo - Primary Photo - Primary

    ARP 89-6/97 Dodge Cummins 5.9L Diesel 12V 2 Bolt Main Stud Kit

    ARP
    $347.74 - $347.74
    $347.74
    $347.74 - $347.74
    $347.74

    ARP Model 247-5402ARP 89-6/97 Dodge Cummins 5.9L Diesel 12V 2 Bolt Main Stud Kit

    $347.74 - $347.74
    $347.74
    $347.74 - $347.74
    $347.74
  • User 4 Photo - Primary

    AFE Rear Differential Cover (Raw; Pro Series); Dodge/RAM 94-14 Corporate 9.25 (12-Bolt)

    aFe
    $314.00 - $314.00
    $314.00
    $314.00 - $314.00
    $314.00

    aFe Model 46-70270aFe Powers new rear-end differential cover brings performance engineering to the protection of your trucks rear-end. This differe...

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    $314.00 - $314.00
    $314.00
    $314.00 - $314.00
    $314.00
  • User 1 User 1

    Industrial Injection 90-93 Dodge Ram 5.9L 12V w/Intercooler Bosch OE Injector

    Industrial Injection
    $97.05 - $97.05
    $97.05
    $97.05 - $97.05
    $97.05

    Industrial Injection Model 0432133877-IISIndustrial Injection 90-93 Dodge Ram 5.9L 12V w/Intercooler Bosch OE Stock Replacement Injector  -7mm 6 Ho...

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    $97.05 - $97.05
    $97.05
    $97.05 - $97.05
    $97.05
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    Wehrli Big Hitch Products Clamp On Sled Stops - BELOW Roll Pan

    Wehrli
    $0.00 - $0.00
    $0.00
    $270.00
    $270.00 - $270.00
    $270.00

    Wehrli Big Hitch Products Model BHP3000 - Protect your trucks sheet metal from damage- Clamps to any of our BELOW roll pan receiver hitches- All ne...

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    $0.00 - $0.00
    $0.00
    $270.00
    $270.00 - $270.00
    $270.00
  • User 1 User 1

    USA Standard 94-04 Dodge Ram 1500/2500/3500 NV4500 Manual Transmission Bearing Kit

    Yukon Gear & Axle
    $357.89 - $357.89
    $357.89
    $357.89 - $357.89
    $357.89

    Yukon Gear & Axle Model ZMBK308AWSUSA Standard Gear manufactures a full line of top-quality transmission parts. You can count on USA Standard G...

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    $357.89 - $357.89
    $357.89
    $357.89 - $357.89
    $357.89
  • User 1 User 1

    USA Standard 01-06 Chevrolet Silverado 2500 HD NV4500 Manual Transmission 3rd Gear (29-Tooth)

    Yukon Gear & Axle
    $131.89 - $131.89
    $131.89
    $131.89 - $131.89
    $131.89

    Yukon Gear & Axle Model ZMNV23712USA Standard Gear manufactures a full line of top-quality transmission parts. You can count on USA Standard Ge...

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    $131.89 - $131.89
    $131.89
    $131.89 - $131.89
    $131.89
  • responsive-image responsive-image

    Steed Speed Competition Style T4/12V with Waste Gate

    Steed speed
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00

    Steed Speed Competition Style T4/12V with Waste Gate   ***Product is built to order. Please call us for lead time***

    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00
  • responsive-image responsive-image

    Steed Speed Competition Style T4/12V

    Steed speed
    $962.00 - $962.00
    $962.00
    $962.00 - $962.00
    $962.00

    Competition manifold with straight T4 flange This header has been designed for those who are pushing the extreme limits with their Cummins. Passa...

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    $962.00 - $962.00
    $962.00
    $962.00 - $962.00
    $962.00
  • responsive-image responsive-image

    Steed Speed Competition Style T4/12V w/Twin Waste Gate

    Steed speed
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00

    This manifold features a turbo flange facing straight out with two separate wastegate ports either side of the turbo flange. Manifold comes with...

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    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00
  • responsive-image responsive-image

    Steed Speed Competition Style T4/24v w/Waste Gate

    Steed speed
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00

    Competition manifold with straight T4 flange and 2.5 inch V-band EWG port. This header has been designed for those who are pushing the extreme ...

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    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00
  • responsive-image responsive-image

    Steed Speed Competition Style T4/24v w/Twin Gates

    Steed speed
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00

    Competition manifold with straight T4 flange and 2.5 inch V-band EWG port. This header has been designed for those who are pushing the extreme l...

    View full details
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00
  • responsive-image responsive-image

    Steed Speed Competition Style T6/12v

    Steed speed
    $962.00 - $962.00
    $962.00
    $962.00 - $962.00
    $962.00

    Competition manifold with straight T6 flange on 10 degree angle     ***Product is built to order. Please call us for lead time***

    $962.00 - $962.00
    $962.00
    $962.00 - $962.00
    $962.00
  • responsive-image responsive-image

    Steed Speed Competition Style T6/12v w/Waste Gate

    Steed speed
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00

    Competition manifold with straight T6 flange and 2.5 inch V-band EWG port. This header has been designed for those who are pushing the extreme li...

    View full details
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00
  • responsive-image responsive-image

    Steed Speed Competition Style T6/12v w/Twin Gates

    Steed speed
    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00

    Competition manifold with straight T6 flange and twin 2.5 inch V-band EWG ports.     ***Product is built to order. Please call us for lead time***

    $1,213.00 - $1,213.00
    $1,213.00
    $1,213.00 - $1,213.00
    $1,213.00
  • responsive-image responsive-image

    Steed Speed Competition Style T6/24v

    Steed speed
    $962.00 - $962.00
    $962.00
    $962.00 - $962.00
    $962.00

    Competition manifold with straight T6 flange. Comes complete with all gaskets and turbo mounting hardware     ***Product is built to order. Please ...

    View full details
    $962.00 - $962.00
    $962.00
    $962.00 - $962.00
    $962.00
  • responsive-image responsive-image

    Steed Speed Competition Style T6/24v w/Twin Gates

    Steed speed
    $1,212.00 - $1,212.00
    $1,212.00
    $1,212.00 - $1,212.00
    $1,212.00

    Competition manifold with straight T6 flange and twin gates set either side of the turbo flange.     ***Product is built to order. Please call us f...

    View full details
    $1,212.00 - $1,212.00
    $1,212.00
    $1,212.00 - $1,212.00
    $1,212.00
  • responsive-image responsive-image

    Steed Speed T4 12v Straight Turbo Flange w/Waste Gate

    Steed speed
    $1,000.00 - $1,000.00
    $1,000.00
    $1,000.00 - $1,000.00
    $1,000.00

    This manifold features a turbo flange facing straight out with a single divided wastegate port centered on the turbo flange. Manifold comes with al...

    View full details
    $1,000.00 - $1,000.00
    $1,000.00
    $1,000.00 - $1,000.00
    $1,000.00
  • responsive-image responsive-image

    Steed Speed T3 12v Straight Turbo Flange

    Steed speed
    $750.00 - $750.00
    $750.00
    $750.00 - $750.00
    $750.00

    This manifold features a turbo flange facing straight out. Manifold comes with all gaskets and turbo mounting hardware.   ***Product is built to or...

    View full details
    $750.00 - $750.00
    $750.00
    $750.00 - $750.00
    $750.00
  • responsive-image responsive-image

    Steed Speed T3 12V Straight Turbo Flange w/Waste Gate

    Steed speed
    $1,000.00 - $1,000.00
    $1,000.00
    $1,000.00 - $1,000.00
    $1,000.00

    This manifold features a turbo flange facing straight out with a single divided wastegate port centered on the turbo flange. Manifold comes with al...

    View full details
    $1,000.00 - $1,000.00
    $1,000.00
    $1,000.00 - $1,000.00
    $1,000.00
  • responsive-image responsive-image

    Steed Speed T3 12V Twin Turbo Inverted Gate

    Steed speed
    $1,000.00 - $1,000.00
    $1,000.00
    $1,000.00 - $1,000.00
    $1,000.00

    Steed Speed designed for twin turbo applications this manifold is intended to be run with the turbo flange facing up and has a wastegate on the sho...

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    $1,000.00 - $1,000.00
    $1,000.00
    $1,000.00 - $1,000.00
    $1,000.00
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    S&S Diesel Motorsport Injector Seal Kit (combustion seal + body o-ring) - Cummins 5.9/6.7 -

    S&S
    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00

    S&S Model INJ-SEALS-CUMMINSInjector Seal Kit (combustion seal + body o-ring) - Cummins 5.9/6.7 - *Generic Image

    $7.00 - $7.00
    $7.00
    $7.00 - $7.00
    $7.00
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    Industrial Injection 96-98 Dodge (Man. Trans) 12mm Dragon Fly Reman P7100 Injection Pump

    Industrial Injection
    $3,023.95
    $3,023.95 - $3,023.95
    $3,023.95
    $2,933.23
    $2,933.23 - $2,933.23
    $2,933.23

    Industrial Injection Model 0402736913SHOSEIndustrial Injection 96-98 Dodge (Man. Trans) 12mm Dragon Fly Reman P7100 Injection Pump Important! The ...

    View full details
    $3,023.95
    $3,023.95 - $3,023.95
    $3,023.95
    $2,933.23
    $2,933.23 - $2,933.23
    $2,933.23
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  • User 1 User 1

    DDP Dodge 94-98 P-Pump 3000 & 4000 RPM Governor Spring Kit

    DDP
    $0.00 - $0.00
    $0.00
    $152.00
    $152.00 - $152.00
    $152.00

    DDP Model DDP 34KGSK Dodge Cummins 94-98 P-Pump 3,000 and 4,000 RPM Governor Spring Kit Dynomite Diesel

    $0.00 - $0.00
    $0.00
    $152.00
    $152.00 - $152.00
    $152.00
    Select Options
  • WeatherTech 96 GMC Rally Van Rear Rubber Mats - Grey. WeatherTech 96 GMC Rally Van Rear Rubber Mats - Grey.

    WeatherTech 96 GMC Rally Van Rear Rubber Mats - Grey

    WeatherTech
    $48.95 - $48.95
    $48.95
    $48.95 - $48.95
    $48.95

    WeatherTech Model W25GRThe WeatherTech All-Weather Floor Mats have deeply sculpted channels designed to trap water, road salt, mud and sand. They ...

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    $48.95 - $48.95
    $48.95
    $48.95 - $48.95
    $48.95

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