Current Lead Times: In Stock Engines Ship Same or Next Day - Out of Stock: 1-3 Weeks on Most Long Block Engines; 3-5 Days on Heads – *call us for more exact lead times for your specific build 
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5.9L 1989-1993 Cummins

The 1989–1993 5.9L Cummins engine kicked off the 12-valve legacy. This inline-six diesel uses a mechanical VE rotary injection pump for simple, reliable fuel control. It has a cast-iron block, a forged steel crankshaft, and strong internals built to last.

Known for its durability and easy upgrades, this engine is a favorite for towing, off-roading, and performance builds. It delivers solid, no-frills power and is easy to work on.

5.9L Cummins engine

The 1989–1993 5.9L Cummins engine kicked off the 12-valve legacy. This inline-six diesel uses a mechanical VE rotary injection pump for simple, reliable fuel control. It has a cast-iron block, a forged steel crankshaft, and strong internals built to last. Known for its durability and easy upgrades, this engine is a favorite for towing, off-roading, and performance builds. It delivers solid, no-frills power and is easy to work on.