Complete Fuel Pump & Sending Unit Module Assembly

High-Performance Fuel Delivery for Buick, Oldsmobile, and Pontiac Sedans

Restore your vehicle’s starting reliability and fuel gauge accuracy with this premium In-Tank Fuel Pump Module Assembly. Specifically engineered for the General Motors H-Body and C-Body platforms of the late 90s, this all-in-one unit serves as a direct-fit replacement for the electric pump, fuel level sender, and internal strainer. If your vehicle is experiencing extended cranking, sputtering under load, or an inaccurate fuel gauge, this module provides the necessary flow and pressure to restore factory-spec performance to your 3.8L V6 engine.

Constructed with high-quality internal components, this pump is designed to maintain a consistent flow rating of up to 34.34 gph and withstand peak pressures of 108.7 PSI. The integrated sending unit features a precision-calibrated rheostat (40–250 Ohms) to ensure your dashboard fuel gauge provides a steady and accurate reading from full to empty.

Fitment Verification and Vehicle Applications

This module is designed for specific 1997–1999 GM models. Please verify your vehicle's Harness Code for 1997 models to ensure a correct electrical interface:

• Buick LeSabre: 1997 (with Harness Code HEN or HER), 1998, 1999.

• Oldsmobile 88 (Eighty-Eight): 1997, 1998, 1999.

• Oldsmobile LSS: 1997, 1998, 1999.

• Oldsmobile Regency: 1997, 1998.

• Pontiac Bonneville: 1997, 1998, 1999.

• Fitment Note: This is an in-tank electric pump designed for standard gasoline applications only. It is not compatible with E85 or Flex Fuel configurations.

Technical Specifications and Attributes

• Pump Type: Electric / In-Tank.

• Flow Ratings: 26 gph (Min) | 30 gph (Avg) | 34.34 gph (Max).

• Pressure Ratings: 79.7 PSI (Min) | 108.7 PSI (Max).

• Resistance Range: 40 Ohms (Empty) to 250 Ohms (Full).

• Outlet Specs: 9.49 mm Outside Diameter with Quick Connect fitting.

• Components Included: Sending Unit, Gasket/Seal, Lock Ring, and Strainer.

• Pressure Sensor: Not Included (Requires reuse of factory sensor where applicable).

What’s in the Box

• (1) Complete Fuel Pump & Sending Unit Module

• (1) Pre-installed Fuel Strainer (Inlet)

• (1) High-Durability Tank Seal / Gasket

• (1) Steel Mounting Lock Ring

Industry Cross-Reference Numbers

• General Motors: 19179526

• Delphi: HP10261

• Carter: P77379H

• Spectra Premium: SP07P1H

• Agility Autoparts: 4011053

• US Motor Works: USEP07P1H

Installation and Technical Tips

• Verify Harness Codes: For 1997 models, check the identification tag on your existing fuel pump wiring harness. This unit is specifically calibrated for trucks and sedans with the HEN or HER codes to prevent electrical mismatch.

• Tank Cleanliness: Before opening the fuel tank, use compressed air to clear away any debris or rust sitting on top of the tank. Once the pump is removed, inspect the bottom of the tank for "varnish" or sediment. Installing a new pump into a dirty tank will lead to premature strainer clogging and motor failure.

• Lock Ring Installation: Use a brass drift punch or a dedicated fuel pump lock ring tool to secure the new ring. Avoid using steel screwdrivers, as a spark near an open fuel tank presents a significant safety hazard.

• The Coolant Effect: Gasoline acts as a coolant for the electric motor. Consistently running your vehicle with less than a quarter-tank of fuel allows the pump to run hotter, which can drastically shorten the lifespan of the internal brushes and commutator