LS Fuel Pump and Fitting Kit for 1987-1997 GM Trucks and 1994-1995 Chevy S-10 Pickup
Swapping an LS powerplant into a 1987 to 1997 GM truck or a 1994 or 1995 S-10 pickup often stalls when the original tank pump and fittings cannot maintain consistent pressure. This Fuel Pump and Fitting Kit 1987-1997 pairs a Walbro 255 LPH in tank pump with precision adapters that align with factory sending unit ports and eliminate the need for any line cutting or aftermarket sleeves. Crafted from alloys that resist corrosion and ethanol exposure, the fittings guide fuel through an optimized flow path that preserves output under heavy throttle. Installers simply lower the assembly into the stock opening, tighten the clamp, then connect directly to the fuel line and regulator for steady fuel flow across the LS rpm range.
Precision Adapter Alignment for Factory Sending Unit Ports
The custom fittings in this kit are engineered to match the exact spacing and angles of the original sending unit openings on GM trucks from 1987 to 1997 and Chevy S-10 pickups from 1994 to 1995. By mirroring factory port geometry, installers avoid cutting stock fuel lines or sourcing separate sleeves, which saves hours of work and reduces the chance of misalignment. This precise alignment also minimizes potential leak paths by ensuring each seal surface interfaces cleanly with the tank flange. Whether in a professional shop or a home garage, technicians benefit from a simple installation process that maintains the vehicle's original plumbing layout and underbody clearance.
Immersed Pump Cooling for Consistent Performance
Housing the Walbro 255 LPH pump entirely inside the fuel tank leverages the natural cooling effect of submersion. As the pump operates, heat is drawn away quickly by the surrounding liquid, preserving internal components and preventing fuel vapor formation at high demand. This constant contact with fuel not only extends service life but also muffles mechanical noise, delivering a nearly silent operation compared to externally mounted units. The cooled environment helps the pump maintain rated flow under sustained throttle, ensuring the engine control unit receives a stable supply and avoids lean conditions during spirited acceleration or towing.
Corrosion Resistant Alloy Construction for Ethanol Blend Durability
Every adapter and housing in this assembly is manufactured in the USA from corrosion resistant alloys selected to withstand moisture, road salts and modern ethanol fuel blends. These materials resist pitting and chemical attack even after repeated exposure to fluctuating temperatures and vibration. Specialized surface treatments on mating surfaces preserve precise tolerances and ensure a tight seal through thermal cycles. By choosing alloys with proven resistance to ethanol and corrosion, the kit delivers reliable fuel delivery without degradation in harsh environments, so vehicle owners can count on consistent operation mile after mile.
Engineered for a precise fit and reliable fuel delivery in your LS swap project.