Alliant Power Remanufactured HP4 High Pressure Fuel Injection Pump These are replacement filters for

These are replacement filters for your S&B Cold Air Intake

WILL NOT WORK WITH DUAL RADIATOR VEHICLES

The primary benefits of this kit are significantly increased fuel flow "through" the heads

This kit was designed to avoid check engine lights

Alliant Power Remanufactured HP4 High Pressure Fuel Injection Pump These are replacement filters forThe Alliant AP54950 Remanufactured HP4 Injection Pump is a direct replacement for the HPFP in your 17 25 L5P Duramax L5D Duramax. This reman pump is rebuilt to the highest standards and thoroughly tested to ensure years of reliability. Backed by Alliant's 2 Year Unlimited Mileage Warranty.