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Thumbnail Filmstrip of 2017-2023 6.6L L5P Duramax Reman Injector With Line and Bolt (Cylinder 1, 3, 6, 8) Alliant AP54904 Images
The Alliant Power AP54904 is a remanufactured injector kit with line and bolt (cyl. 1, 3, 6, 8) for 2017–2023 GM L5P Duramax applications.
Features & Benefits
- Remanufactured Alliant Power Injector Kit with Line and Bolt (Cyl. 1, 3, 6, 8) (Alliant P/N AP54904)
- Direct replacement for 12674615 / 12678992 / 12696966
- Backed by Alliant Power’s 24-month, unlimited-mileage warranty
Included in the Box
- 1x Remanufactured L5P Common Rail Injector (Alliant AP54800)
- 1x Injector High Pressure Line (Cyl. 1, 3, 6, 8)
- 1x Injector Hold Down Bolt
- 1x Chamber Nozzle Tip Gasket
- 1x Injector Sealing O-ring
Application
- Chevrolet Silverado 2500 HD / 3500 HD with 6.6L L5P Duramax (2017–2023), per Alliant Power
- GMC Sierra 2500 HD / 3500 HD with 6.6L L5P Duramax (2017–2023), per Alliant Power
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
- Replaces (per Alliant Power): 12674615, 12678992, 12696966, 12698552, FJ1383
- Alliant Power: AP54904
Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).
A refundable core charge is added at checkout and refunded when your old injector is returned per our core terms.
The Alliant Power AP54904 is a remanufactured injector kit with line and bolt (cyl. 1, 3, 6, 8) for 2017–2023 GM L5P Duramax applications.
Features & Benefits
Remanufactured Alliant Power Injector Kit with Line and Bolt (Cyl. 1, 3, 6, 8) (Alliant P/N AP54904)
Direct replacement for 12674615 / 12678992 / 12696966
Backed by Alliant Power’s 24-month, unlimited-mileage warranty
Included in the Box
1x Remanufactured L5P Common Rail Injector (Alliant AP54800)
1x Injector High Pressure Line (Cyl. 1, 3, 6, 8)
1x Injector Hold Down Bolt
1x Chamber Nozzle Tip Gasket
1x Injector Sealing O-ring
Application
Chevrolet Silverado 2500 HD / 3500 HD with 6.6L L5P Duramax (2017–2023), per Alliant Power
GMC Sierra 2500 HD / 3500 HD with 6.6L L5P Duramax (2017–2023), per Alliant Power
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
Replaces (per Alliant Power): 12674615, 12678992, 12696966, 12698552, FJ1383
Alliant Power: AP54904
Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alli[...]
The Alliant Power AP54904 is a remanufactured injector kit with line and bolt (cyl. 1, 3, 6, 8) for 2017–2023 GM L5P Duramax applications.
Features & Benefits
- Remanufactured Alliant Power Injector Kit with Line and Bolt (Cyl. 1, 3, 6, 8) (Alliant P/N AP54904)
- Direct replacement for 12674615 / 12678992 / 12696966
- Backed by Alliant Power’s 24-month, unlimited-mileage warranty
Included in the Box
- 1x Remanufactured L5P Common Rail Injector (Alliant AP54800)
- 1x Injector High Pressure Line (Cyl. 1, 3, 6, 8)
- 1x Injector Hold Down Bolt
- 1x Chamber Nozzle Tip Gasket
- 1x Injector Sealing O-ring
Application
- Chevrolet Silverado 2500 HD / 3500 HD with 6.6L L5P Duramax (2017–2023), per Alliant Power
- GMC Sierra 2500 HD / 3500 HD with 6.6L L5P Duramax (2017–2023), per Alliant Power
Always verify fitment against your VIN, engine, and OE part number before ordering.
Cross-Reference / Replaces
- Replaces (per Alliant Power): 12674615, 12678992, 12696966, 12698552, FJ1383
- Alliant Power: AP54904
Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).
A refundable core charge is added at checkout and refunded when your old injector is returned per our core terms.