Sparta PN8020 Mechanical Fuel Pump

Mechanical Fuel Pump for Classic GM Applications

The Sparta PN8020 mechanical fuel pump is a standard replacement for older gasoline-powered vehicles that use a belt- or cam-driven fuel delivery system. Built with an aluminum housing and a hose-bead inlet, it supports steady fuel delivery for classic Buick, Oldsmobile, and Pontiac applications, including Buick LeSabre, Oldsmobile Cutlass, and Pontiac Firebird models.

Key Features

• Mechanical fuel pump for gasoline engines
• Standard replacement grade for earlier model vehicles
• Aluminum housing for durable service
• 1 inlet and 1 threaded outlet
• Inlet outside diameter: 0.375 in.
• Outlet fitting thread size: 5/8" - 18
• Operating pressure range: 5 to 7 psi
• Average flow rating: 30.0
• Mounting hardware and gasket or seal included
• Package contents: mechanical fuel pump, gasket, instruction sheet

Detailed Description

Sparta PN8020 is a mechanical fuel pump engineered for higher-mileage and earlier model vehicles that rely on a conventional mechanical fuel delivery setup. As a gasoline pump with a 5 to 7 psi pressure range and a 30.0 average flow rating, it is built to restore consistent fuel supply in classic GM platforms. This part is a direct-fit style replacement for applications such as Buick LeSabre, Oldsmobile 98, Oldsmobile Cutlass Supreme, Oldsmobile Delta 88, Oldsmobile Toronado, and Pontiac Grand Prix. This part cross-references Carter M6108 for the same application.

Common Problems This Pump Can Address

• Hard starting caused by weak fuel delivery
• Fuel starvation under normal driving conditions
• Low fuel pressure from a worn mechanical pump
• Intermittent stalling related to inconsistent fuel supply
• Loss of drivability in older carbureted gasoline systems

Installation Notes and Tips

Confirm inlet and outlet orientation before installation. The pump uses a hose-bead inlet and a threaded outlet with 5/8" - 18 thread size, so verify line and fitting compatibility before assembly. Use the included gasket during installation and follow the instruction sheet for proper mounting on the engine. Verify fuel pressure after installation to confirm the system is operating within the 5 to 7 psi range.

Quality Assurance

Sparta is distributed by Delphi, an OE full-line fuel supplier with deep application knowledge in fuel system fit and performance. PN8020 is built as a standard replacement mechanical fuel pump for classic vehicles that need dependable fuel delivery from a trusted OE-backed source.

Compatible With

• Fits 1984 Buick LeSabre, N/A
• Fits 1981 Buick LeSabre, N/A
• Fits 1977 Buick LeSabre, N/A
• Fits 1983 Buick Regal, N/A
• Fits 1981 Buick Riviera, N/A
• Fits 1977 Buick Riviera, N/A
• Fits 1977 Buick Century, N/A
• Fits 1977 Buick Skylark, N/A
• Fits 1984 Oldsmobile 98, N/A
• Fits 1980 Oldsmobile 98, N/A
• Fits 1977 Oldsmobile 98, N/A
• Fits 1970-1974 Oldsmobile 98, N/A
• Fits 1974-1984 Oldsmobile Cutlass Supreme, N/A
• Fits 1970 Oldsmobile Cutlass Supreme, N/A
• Fits 1984 Oldsmobile Delta 88, N/A
• Fits 1977-1982 Oldsmobile Delta 88, N/A
• Fits 1970-1974 Oldsmobile Delta 88, N/A
• Fits 1984 Oldsmobile Toronado, N/A
• Fits 1980 Oldsmobile Toronado, N/A
• Fits 1978-1982 Oldsmobile Cutlass Calais, N/A
• Fits 1970-1981 Oldsmobile Cutlass, N/A
• Fits 1981 Oldsmobile Cutlass Cruiser, N/A
• Fits 1980 Oldsmobile Custom Cruiser, N/A
• Fits 1977-1978 Oldsmobile Custom Cruiser, N/A
• Fits 1975-1980 Oldsmobile Cutlass Salon, N/A
• Fits 1977 Oldsmobile Omega, N/A
• Fits 1977 Pontiac Bonneville, N/A
• Fits 1977 Pontiac Catalina, N/A
• Fits 1977 Pontiac Firebird, N/A
• Fits 1977 Pontiac Grand LeMans, N/A
• Fits 1977 Pontiac Grand Prix, N/A
• Fits 1977 Pontiac LeMans, N/A