03-04 Cummins 5.9L ISB Reman Common Rail Injector - AP55503

The Alliant Power AP55503 is a remanufactured common rail fuel injector designed specifically for Cummins 5.9L diesel engines. Engineered to meet or exceed OE specifications, each injector undergoes a thorough remanufacturing process — including disassembly, cleaning, inspection, and replacement of worn parts, seals, and gaskets — followed by rigorous testing to ensure quality and durability.

Features & Benefits

• Direct fit and function — drops in like OEM
• OEM compatibility with genuine OE or OE equivalent components
• Assembled proudly in the USA within Alliant Power's ISO 9001:2015 Certified Facility
• Backed by Alliant Power's 2-year, unlimited mileage warranty

What's in the Box

• 1x Remanufactured Diesel Fuel Injector (O-rings installed)

Fitment

• 2003–2004 Dodge Ram 2500, 3500 with 5.9L Cummins Engine

Specifications