MPA Electrical 6309MS Starter Motor

Remanufactured Starter for GM Compact Cars

MPA Electrical 6309MS is a remanufactured 12-volt starter built for direct-drive applications that use a Delco-style design. It features a 1.5 kW rating, clockwise rotation, and a 9-tooth drive for the specified GM fitments.

This starter is a fit for select Buick Skylark, Chevrolet Camaro, Pontiac Firebird, and related GM models from the early 1980s through 1991. The MPA Electrical remanufactured line focuses on service-ready electrical components for charging and starting systems.

Key Features

• Part number: 6309MS
• Remanufactured starter for 12-volt systems
• Direct drive design
• 1.5 kW rating
• Clockwise rotation
• 9-tooth drive
• Delco manufacturer specification
• Fits select Buick, Chevrolet, Oldsmobile, and Pontiac applications

Fitment Details

• Fits 1986-1991 Buick Skylark, N/A
• Fits 1983 Buick Skylark, N/A
• Fits 1988-1991 Oldsmobile Cutlass Calais, N/A
• Fits 1985-1991 Pontiac Grand Am, N/A
• Fits 1985-1987 Oldsmobile Calais, N/A
• Fits 1984 Buick Skylark, N/A; first production starter motor without cast ear on solenoid
• Fits 1983 Buick Century, N/A
• Fits 1983 Chevrolet Camaro, N/A; first production starter motor without cast ear on solenoid
• Fits 1983 Chevrolet Celebrity, N/A
• Fits 1983 Chevrolet Citation, N/A
• Fits 1983 Oldsmobile Cutlass Ciera, N/A
• Fits 1983 Oldsmobile Omega, N/A
• Fits 1983 Pontiac 6000, N/A
• Fits 1983 Pontiac Firebird, N/A; first production starter motor without cast ear on solenoid
• Fits 1983 Pontiac Phoenix, N/A

What This Starter Helps Address

• Slow or weak cranking during engine start
• No-crank conditions caused by starter failure
• Intermittent starting on 12-volt GM vehicles
• Starter drive engagement issues tied to worn internal components
• Replacement needs for Delco-style direct-drive starter applications

Installation Notes

Verify the vehicle’s year, model, and starter configuration before installation, especially on 1983-1984 applications with the first production starter motor without a cast ear on the solenoid. Confirm clockwise rotation, 12-volt system requirements, and 9-tooth drive engagement before mounting. This part cross-references AMS Automotive 6309 and 6321 for the same application.

Quality Assurance

MPA Electrical remanufactured starters are rebuilt for starting-system service in the listed applications. Part number 6309MS is specified for the fitments shown and should be matched to the vehicle’s original starter design before installation.