MPA Electrical 6331MS Starter Motor

Remanufactured Starter for Cadillac V8 Applications

MPA Electrical 6331MS is a remanufactured 12-volt starter built for direct-drive operation and clockwise rotation. With a 1.5 kW rating and a 9-tooth drive, it is specified for select Cadillac starting systems that require Delco-style fitment.

This starter is a fitment-based replacement for 1985-1986 Cadillac DeVille, 1985-1986 Cadillac Fleetwood, 1985-1986 Cadillac Commercial Chassis, 1986 Cadillac Eldorado, and 1986 Cadillac Seville. The MPA Electrical remanufactured line focuses on service-ready electrical components for charging and starting repairs.

Key Features

• Remanufactured starter for electrical starting system service
• Direct drive design for Delco applications
• 1.5 kW rating for 12-volt systems
• Clockwise rotation
• 9-tooth drive configuration
• Fits select 1985-1986 Cadillac DeVille and Fleetwood applications
• Fits 1985-1986 Cadillac Commercial Chassis and 1986 Cadillac Eldorado and Seville

Detailed Description

MPA Electrical 6331MS is a remanufactured starter engineered around the listed electrical and drive specifications: direct drive, 1.5 kW output, 12 volts, clockwise rotation, and a 9-tooth pinion. It is identified with Delco manufacturer data and is intended for Cadillac starting systems that match these requirements. If you are searching for a remanufactured starter for 1985-1986 Cadillac DeVille or 1985-1986 Cadillac Fleetwood, this part number provides a direct reference point for application matching. This part cross-references AMS Automotive 6331 for the same application.

Common Starting Issues It May Address

• Engine no-crank condition when the starter motor no longer engages
• Slow or weak cranking caused by worn internal starter components
• Intermittent starting performance from a failing starter drive
• Grinding or improper engagement related to tooth-count mismatch
• Starting system repair needs on select Cadillac DeVille, Fleetwood, Eldorado, and Seville models

Installation Notes and Tips

Confirm the vehicle’s original starter specifications before installation, including voltage, rotation, tooth count, and mounting style. Verify that the replacement matches the Delco-based application and the vehicle’s year and model exactly, especially on 1985-1986 Cadillac DeVille and Fleetwood and 1986 Cadillac Eldorado and Seville. Inspect battery condition, cable integrity, and starter circuit connections during replacement to avoid repeat starting faults.

Quality Assurance

MPA Electrical remanufactured components are rebuilt for service in charging and starting applications, with attention to application-specific electrical requirements and OE-style fitment references.