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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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    Fleece Performance 03-18 Cummins Coolant Bypass Service Kit

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $27.99
    $27.99 - $27.99
    $27.99

    Fleece Performance Model FPE-CLNTBYPS-CUMMINS-SER-KITComplete kit to service your Fleece Performance Coolant Bypass - Includes all O-rings, fastene...

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    $0.00 - $0.00
    $0.00
    $27.99
    $27.99 - $27.99
    $27.99
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    Fleece Performance 97-19 Dodge 2500/3500 Cummins 6in Multiuse Sensor Pigtail 2

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $32.99
    $32.99 - $32.99
    $32.99

    Fleece Performance Model FPE-HAR-MU-PT-2Replacement connector with 6 inch pigtail for use on the Cummins engine and other vehicle applications. Pro...

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    $0.00 - $0.00
    $0.00
    $32.99
    $32.99 - $32.99
    $32.99
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    Fleece Performance 94-18 Dodge Cummins 2500-3500 Exhaust Manifold Stud Kit - 4mm Allen Socket Head

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $229.99
    $229.99 - $229.99
    $229.99

    Fleece Performance Model FPE-34772All New! Fleece Performance stainless steel exhaust manifold stud kit for Cummins. Our exhaust manifold studs are...

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    $0.00 - $0.00
    $0.00
    $229.99
    $229.99 - $229.99
    $229.99
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    Fleece Performance 03-15 Cummins Factory Oil Feed Line Replacement

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $69.99
    $69.99 - $69.99
    $69.99

    Fleece Performance Model FPE-CRTFL-OEEnsure your turbocharger has a good oil supply line with with our replacement turbocharger oil feed line kit d...

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    $0.00 - $0.00
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    $69.99
    $69.99 - $69.99
    $69.99
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    Fleece Performance 89-18 Dodge 2500 / 3500 Cummins Mechanical Fuel Pump Block Off Plate

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $36.99
    $36.99 - $36.99
    $36.99

    Fleece Performance Model FPE-CUMM-FBOPCummins Mechanical Fuel Pump Block Off Plate. Have you upgraded from your factory mechanical lift pump to an ...

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    $36.99
    $36.99 - $36.99
    $36.99
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    Fleece Performance 89-07 Dodge 5.9L / 07.5-12 6.7L Cummins Crankshaft Barring Tool

    Fleece Performance
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    $74.99
    $74.99 - $74.99
    $74.99

    Fleece Performance Model FPE-CCBTTurn over your Cummins with ease with this Cummins Crankshaft Barring Tool. Features: Accepts 1/2 inch drive ra...

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    $0.00 - $0.00
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    $74.99
    $74.99 - $74.99
    $74.99
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    Fleece Performance 94-02 Dodge Ram 2500/3500 Cummins Transmission Cooler & Line Kit

    Fleece Performance
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    $0.00
    $859.00
    $859.00 - $859.00
    $859.00

    Fleece Performance Model FPE-TC-CUMM-9402Fleece Performance 94-02 Dodge Ram 2500/3500 Cummins Transmission Cooler & Line Kit All new for the 19...

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    $0.00 - $0.00
    $0.00
    $859.00
    $859.00 - $859.00
    $859.00
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    Fleece Performance HE400VG/HE451VE Turbocharger for Cummins ISX - 67mm

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $4,499.00
    $4,499.00 - $4,499.00
    $4,499.00

    Fleece Performance Model FPE-HE4-67From the turbo experts at Fleece Performance comes our all-new HE400VG/HE451VE replacement turbocharger - provid...

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    $0.00 - $0.00
    $0.00
    $4,499.00
    $4,499.00 - $4,499.00
    $4,499.00
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    Fleece Performance 94-98 12V Coolant Bypass Kit w/ Stainless Steel Braided Line

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $379.00
    $379.00 - $379.00
    $379.00

    Fleece Performance Model FPE-CLNTBYPS-CUMMINS-12V-SSIncreased Coolant Flow, Decreased Coolant Temperatures. The rear cylinders on the 5.9/6.7L Cumm...

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    $0.00 - $0.00
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    $379.00
    $379.00 - $379.00
    $379.00
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    Fleece Performance 94-02 HX35 63mm FMW Holset Cheetah Turbocharger

    Fleece Performance
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    $0.00
    $1,699.00
    $1,699.00 - $1,699.00
    $1,699.00

    Fleece Performance Model FPE-HX35-63-FMWFleece Performance Cheetah Turbochargers set the industry standard for power, quality, and reliability. The...

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    $0.00
    $1,699.00
    $1,699.00 - $1,699.00
    $1,699.00
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    Fleece Performance Fuel Heater for Fleece Performance GM/Cummins Filter Bases

    Fleece Performance
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    $0.00
    $139.00
    $139.00 - $139.00
    $139.00

    Fleece Performance Model FPE-FH-CUMM-GMFleece Performance Fuel Heater for Fleece Performance GM/Cummins Filter Bases Fuel heater for use in Fleece ...

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    $0.00 - $0.00
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    $139.00
    $139.00 - $139.00
    $139.00
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    Fleece Performance 94-02 Dodge 2500/3500 5.9L Cummins Turbocharger Drain Tube Kit

    Fleece Performance
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    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Performance Model FPE-CTDT-HX35-KITEliminate the installation headaches associated with a non-flexible OE drain line with our silicone hose ...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
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    Fleece Performance 95-20 Dodge 2500/3500 Cummins 6in Multiuse Sensor Pigtail 4

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $29.99
    $29.99 - $29.99
    $29.99

    Fleece Performance Model FPE-HAR-MU-PT-4Replacement connector with 6 inch pigtail for use on the Cummins engine and other vehicle applications. Pro...

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    $0.00 - $0.00
    $0.00
    $29.99
    $29.99 - $29.99
    $29.99
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    Fleece Performance 94-18 Dodge Cummins 2500-3500 Exhaust Manifold Stud Kit - 7mm External Hex Head

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $229.99
    $229.99 - $229.99
    $229.99

    Fleece Performance Model FPE-34771All New! Fleece Performance stainless steel exhaust manifold stud kit for Cummins. Our exhaust manifold studs are...

    View full details
    $0.00 - $0.00
    $0.00
    $229.99
    $229.99 - $229.99
    $229.99
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    Fleece Performance 94-02 Dodge 2500/3500 6.7L Cummins HX35 Turbocharger Installation Kit

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $35.99
    $35.99 - $35.99
    $35.99

    Fleece Performance Model FPE-CUMM-HX35-INST-KIT-9402Fleece Performance 94-02 Dodge 2500/3500 6.7L Cummins HX35 Turbocharger Installation Kit Comple...

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    $0.00 - $0.00
    $0.00
    $35.99
    $35.99 - $35.99
    $35.99
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    Fleece Performance HE400VG/HE451VE Turbocharger for Cummins ISX - 64mm

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $4,499.00
    $4,499.00 - $4,499.00
    $4,499.00

    Fleece Performance Model FPE-HE4-64From the turbo experts at Fleece Performance comes our all new HE400VG/HE451VE replacement turbocharger - provid...

    View full details
    $0.00 - $0.00
    $0.00
    $4,499.00
    $4,499.00 - $4,499.00
    $4,499.00
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    Fleece Performance 2500 and 3500 Low Profile Shock Mounts

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99

    Fleece Performance Model FPE-LPSMBuilt from high quality 1/4 inch 304 stainless steel and are perfect for gaining the necessary room under the hood...

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    $0.00 - $0.00
    $0.00
    $99.99
    $99.99 - $99.99
    $99.99
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    Fleece Performance 94-98 Dodge Cummins 39.5in 12 Valve Coolant Bypass Hose (BLK - Braided)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $84.31
    $84.31 - $84.31
    $84.31

    Fleece Performance Model FPE-CLNTBYPS-HS-12V-BLKReplacement Coolant Bypass Hose with black nylon braiding for our 12V Cummins kits. For use with th...

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    $0.00 - $0.00
    $0.00
    $84.31
    $84.31 - $84.31
    $84.31
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    Fleece Performance 94-98 Dodge Cummins 39.5in 12 Valve Coolant Bypass Hose (SS-Braided)

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $84.31
    $84.31 - $84.31
    $84.31

    Fleece Performance Model FPE-CLNTBYPS-HS-12V-SSReplacement Coolant Bypass Hose with stainless steel braiding for our 12V Cummins kits. For use with...

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    $0.00 - $0.00
    $0.00
    $84.31
    $84.31 - $84.31
    $84.31
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    Fleece Performance 94-98 Dodge 5.9L Cummins 12V Coolant Bypass Kit

    Fleece Performance
    $0.00 - $0.00
    $0.00
    $379.00
    $379.00 - $379.00
    $379.00

    Fleece Performance Model FPE-CLNTBYPS-CUMMINS-12VAnother product from Fleece Performance built out of necessity is the 1998.5-2002 Cummins Coolant ...

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    $0.00 - $0.00
    $0.00
    $379.00
    $379.00 - $379.00
    $379.00

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