Alliant Power AP55112 is a remanufactured fuel injector for the GM 6.6L Duramax LML, 2011 to 2016. Alliant builds this number for cylinders 1 and 8 and sells other numbers for the other cylinder pairs.
Bosch lists the LML for 2011 to 2016 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD. Some 2011 to 2012 Silverado and Sierra trucks have the LGH instead, which takes a different injector. Check the engine code and the cylinder position before you order.
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 | AP55112 |
|---|---|
| Brand | Alliant Power |
| Condition | Remanufactured |
| Engine | GM 6.6L Duramax LML |
| Cylinder position | 1 and 8 |
| Core charge | Refundable in full when we receive your rebuildable core |
| Shipping weight | 1 lb |
Fits / Applications
- GM 6.6L Duramax LML, 2011 to 2016
- Cylinders 1 and 8
- 2011 to 2016 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD with the LML engine
Frequently Asked Questions
Which cylinders is AP55112 for?
Cylinders 1 and 8 on the GM 6.6L Duramax LML, per Alliant Power.
Which trucks does it fit?
2011 to 2016 Chevrolet Silverado 2500 HD and 3500 HD and GMC Sierra 2500 HD and 3500 HD with the LML. Some 2011 to 2012 trucks have the LGH, which takes a different injector.
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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