Skip to content
We will be closed June 27th, 2026 - July 6th, 2026. In store pickups will be unavailable during this time. A majority of orders will ship out normally but may experience a delay in handling time. if you have any questions, please use our live chat before placing an order.
We will be closed June 27th, 2026 - July 6th, 2026. In store pickups will be unavailable during this time. A majority of orders will ship out normally but may experience a delay in handling time. if you have any questions, please use our live chat before placing an order.
Alliant AP54821 L5D Fuel Contamination Kit

Alliant AP54821 L5D Fuel Contamination Kit

by Alliant Power
SKU ALI-AP54821
$5,053.23 - $5,053.23
$5,053.23
$5,053.23 - $5,053.23
$5,053.23
Product Availability
  • Ships Directly From The Manufacturer
    Ships From Manufacturer
GAP carries the Alliant AP54821 L5D Fuel Contamination Kit that will help restore the fuel system in your 2019-2020 GM 6.6L Duramax L5D 4500/5500/6500HD.

Features:
  • Filter
  • Gaskets
  • Injectors
  • Fuel Rails
  • Injection Pump
  • Injector Lines

WARRANTY INFO:
2 Year / Unlimited Mileage

Note: Core Return only applies to fuel injectors, injection pump, and fuel rails. Contaminated fuel lines and filter do not need to be returned.