Spectra SP128B1H Fuel Pump Assembly

The Spectra SP128B1H fuel pump and sender assembly is a direct-fit replacement for select full-size GM applications. It is built to match original equipment performance targets for fuel delivery and fuel level sending in 1994-1996 Buick Roadmaster, Chevrolet Caprice, and Chevrolet Impala models.

• Fuel pump and sender assembly for in-tank fuel system service
• Direct replacement for select 1994-1996 Buick Roadmaster, Chevrolet Caprice, and Chevrolet Impala applications
• Engineered and manufactured to meet or exceed OE performance expectations
• Part number SP128B1H for accurate ordering and application matching
• This part cross-references TNK SP128B1H for the same application

Application Details

Compatible With 1994-1996 Buick Roadmaster, 1994-1996 Chevrolet Caprice, and 1994-1996 Chevrolet Impala. Use SP128B1H when replacing a worn fuel pump and sender assembly on these vehicles and when restoring proper fuel delivery and fuel level signal performance. The Spectra SP128B1H is built with manufacturing controls intended to support consistent fit and function in the original tank-mounted location.

Common Problems This Part Addresses

• Hard starting caused by a weak or failing in-tank fuel pump
• Intermittent stalling from inconsistent fuel delivery
• Inaccurate fuel gauge readings from a worn sender unit
• Loss of fuel pressure under load
• Fuel system drivability issues on 1994-1996 Buick Roadmaster, Chevrolet Caprice, and Chevrolet Impala models

Installation Notes

Before installation, inspect and clean the fuel tank. Replace the tank lock ring and seal; failure to do so voids the warranty. Confirm vehicle application by year, make, and model before installation. Part number SP128B1H should be matched to the confirmed fitment listed for your vehicle.

Quality Assurance

Spectra Premium states that its engineering, manufacturing technology, and quality control processes are used to produce fuel pump and sender assemblies that meet or exceed the performance of the original equipment they replace. Warranty coverage is void if the tank lock ring and seal are not replaced.