The Alliant Power AP51903 is a remanufactured common rail injector for the John Deere 6090 9.0L PowerTech high-pressure common rail engine. It replaces John Deere RE543606, RE543354, SE502557 and RE539053, and Alliant also lists 095000-0600.
The box holds the injector with its body seal and a fuel injector inlet connector, John Deere RE539524. Alliant packs it with its trim codes and the parts needed to install it. The matching Alliant installation kit is AP0121.
Confirm Fitment Before You Order
Call 530-668-0818 with your VIN or engine serial number and we will confirm it is the right part before anything ships.
Specifications
| Part number | AP51903 |
|---|---|
| Brand | Alliant Power |
| Condition | Remanufactured |
| Engine | John Deere 6090 9.0L PowerTech, high-pressure common rail |
| Matching installation kit | Alliant Power AP0121 |
| Inlet connector OE number | RE539524 |
| Core charge | Refundable in full when we receive your rebuildable core |
| Shipping weight | 1 lb |
Fits / Applications
- John Deere 6090 9.0L PowerTech
Part Numbers & Cross Reference
John Deere RE543606 · John Deere SE502557
In the Box
- 1 remanufactured injector, OE RE543606 / SE502557, with injector body seal
- 1 fuel injector inlet connector, OE RE539524
Frequently Asked Questions
Which engine is the AP51903 for?
The John Deere 6090 9.0L PowerTech with high-pressure common rail.
What comes in the box?
One remanufactured injector with its body seal and one fuel injector inlet connector, John Deere RE539524. It is packed with its trim codes.
Is AP51903 the same as AP51901?
No. Both use the AP0121 kit, but AP51903 replaces RE543606, RE543354 and SE502557, and AP51901 replaces RE543605, RE543352 and SE502556.
Ships by UPS to all 50 states, including Alaska and Hawaii. Your rate shows at checkout. A refundable core charge is added at checkout.


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