2003-2004.5 5.9 Cummins Injector Replacement Kit – Refurbished



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Everything you need to properly install injectors in your 2003-2004.5 5.9 Cummins.  

Complete Kit $1,349.99

The kit includes:

5.9 2003-2004.5 Ram Pickup And Cab & Chassis (285 & 305 HP Engine)

InjectorsDirect.com Refurbished

These are Refurbished & tested 5.9 injectors, that were removed from a running engine. They are cleaned externally in an ultrasonic tank, flushed internally, and the nozzles are reconditioned. Each injector is Individually tested on a state of the art test stand to ensure that they meet OEM specifications. Each test includes a resistance test, system leak test, purge, idle speed test, mid load test, full load test, and static back leak test. Each test cycle checks solenoid response time, back leak flow, and fuel delivery. Guaranteed to be within factory specification.

Replaces part numbers:

Bosch: 0 986 435 503,  0 445 120 018, 0 445 120 113, 0 445 120 210, 0 445 120 255

Mopar: R8004082AA, R8004082AB, R8004082AC, R5086894AA, R8310748AA

Cummins: 3949619, 4940589, 5254686, 5263318, 3949913

They carry a two-year warranty. Information about warranty policies can be found HERE.

Each injector includes all hardware necessary for installation (O-rings, copper crush washers).


Brand new OEM connector tube with o-ring. With a larger orifice, these are an upgrade for 5.9 owners & allow more fuel to be supplied to the injector.  We recommend these be changed when replacing your injectors. Re-using old tubes can lead to leaks, contamination, and premature injector failure.

Replaces part numbers:

Mopar Part # 5086874AB, 5175565AA

Cummins: 3979419

Bosch Part # F 00R J01 572


Brand new set of high pressure fuel lines. Replacing the fuel lines helps prevent premature injector failure. To prevent line failures, Injection lines for cylinders 2 – 6 incorporate the
updated isolators. An isolator is not used on the first cylinder.

Replaces Mopar Part #s

5086871AA, 5086872AB, 5086873AB, 5086874AB, 5086875AB, 5086876AD

Replaces Cummins Part #s

3957081, 4988810, 4988809, 5289447, 4988807, 4988806


Kit includes gasket, six retaining screw o-rings, and oil filter cap seal o-ring. We recommend these be replaced when installing new injectors to avoid leaks.

Mopar Part # 5086954AA