Alliant Power Remanufactured HP4 High Pressure Fuel Injection Pump This kit was designed to

This kit was designed to avoid check engine lights

WILL NOT WORK WITH DUAL RADIATOR VEHICLES

Mirror polished

our silicone filters and couplers won’t slide off the tube or require you to wash your hands

we have found that the flow restrictions were not the factory filter but the filter housing itself

Alliant Power Remanufactured HP4 High Pressure Fuel Injection Pump This kit was designed toThe 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.