1989–1993 Dodge Cummins Crate Engines (5.9L 12-Valve)

Refresh your first-gen 5.9L Cummins with a premium crate engine from CPP Diesel. Choose from expertly machined long blocks and short blocks built with quality components and backed by real diesel tech support. Replace high-mileage powerplants the right way—blueprinted, balanced, and ready for your build.

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Why Choose CPP Diesel?

5.9L Cummins specialists—street, tow, and competition builds
Meticulous machining: bore, hone, balance, and blueprint on every build
Quality components from trusted manufacturers
Fast shipping and knowledgeable, U.S.-based support
Secure checkout and transparent warranties

Helpful Notes

Fitment: Designed for 1989–1993 Dodge Ram trucks with the 5.9L 12-valve Cummins.
Core charge: Many crate engines require a refundable core—return timelines and condition apply.
Break-in: Use proper break-in oil and RPM/boost limits per the engine builder’s instructions.
Supporting parts: Inspect oil pump, cooling system, injectors, and gaskets when swapping engines.
Tuning: Not typically required for stock replacement; performance builds may need fueling/air upgrades.

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Frequently Asked Questions

What’s the difference between a short block and a long block?

A short block includes the assembled block, crank, rods, and pistons. A long block adds cylinder head and valvetrain components to speed installation.

Do I need to send a core back?

Most crate engines require a refundable core charge. Returning a rebuildable core within the stated window keeps your total cost down.

Is break-in required?

Yes—follow the builder’s break-in procedure (oil type, RPM limits, load/boost guidelines) to protect rings, bearings, and warranty.

Will these engines fit all first-gen Dodge Cummins?

They are intended for 1989–1993 5.9L 12-valve applications. Verify accessory and sensor carry-over during installation.

Can CPP help me choose the right build?

Absolutely. Contact our diesel experts for recommendations based on towing, street, or performance goals.

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CPP SHORT BLOCK 5.9 CUMMINS ENGINE 89-98
The CPP REMAN Cummins 5.9L 12V Short Block engine from CPP Diesel is the epitome of performance and durability for any serious automotive enthusiast. Developed for the 1989-1998 Cummins 5.9L 12 valve engine model, this crate engine is meticulously...

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5.9 Cummins Premium Reman Long Block The CPP Diesel Long Block Crate Engine 1989-1998 Cummins 5.9L 12V is the ultimate choice for those seeking unmatched performance and durability. With exceptional features and precise design, this 12 valve Cummins...

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