MPA Electrical 3631S Starter Motor

Reliable Starter for Classic GM and Jeep Vehicles

The MPA Electrical Remanufactured Starter 3631S is designed to provide dependable starting power for a range of classic vehicles including Buick, Cadillac, Chevrolet, Jeep, Oldsmobile, and Pontiac models. Engineered with a direct drive design and a 1.5 kW rating, this 12-volt starter ensures consistent performance for your vehicle's starting system.

• Direct drive design for efficient power transfer
• 1.5 kW power rating suitable for various engine sizes
• Clockwise rotation with 9 teeth for precise engagement
• Compatible with 12-volt electrical systems
• Remanufactured to meet OEM standards

Technical Details and Product Line Information

This starter features a direct drive mechanism, which simplifies the engagement process by directly connecting the starter motor to the engine flywheel. With a 1.5 kW rating, it delivers adequate torque to start engines reliably. The clockwise rotation and 9-tooth pinion gear are designed to match the specifications of many GM and Jeep vehicles, including models like the Chevrolet Camaro, Buick LeSabre, Pontiac Bonneville, and Jeep Wagoneer. The 12-volt system compatibility ensures it integrates seamlessly with standard automotive electrical systems.

The Remanufactured product line from MPA Electrical focuses on restoring used starters to meet strict quality and performance standards. This approach provides a cost-effective alternative to new parts while maintaining reliability and durability. The 3631S starter is carefully rebuilt and tested to ensure it meets or exceeds original equipment specifications.

Compatible Vehicles and Applications

• Buick models such as Century, LeSabre, and Skylark
• Cadillac DeVille, Eldorado, and Fleetwood
• Chevrolet Camaro, Caprice, Impala, and Nova
• Jeep Wagoneer and Commercial Chassis
• Oldsmobile Cutlass, 88, and 98 series
• Pontiac Bonneville, Catalina, and LeMans

Common Issues Addressed by Starter 3631S

• Failure to crank or start the engine
• Intermittent starter engagement problems
• Grinding noises during engine start
• Slow or weak engine turnover
• Electrical faults related to starter motor

Installation Notes and Tips

When installing the MPA Electrical Remanufactured Starter 3631S, ensure the battery is fully charged and disconnected before beginning work. Verify the clockwise rotation and 9-tooth pinion match your vehicle’s flywheel specifications. Properly torque mounting bolts to manufacturer recommendations and check all electrical connections for corrosion or damage. Testing the starter after installation is recommended to confirm correct operation.

Quality Assurance and Warranty

Each MPA Electrical Remanufactured Starter 3631S undergoes rigorous testing to meet OEM performance standards. The remanufacturing process includes inspection, cleaning, replacement of worn components, and final testing to ensure reliability. Warranty coverage details are provided with the product to protect against defects in materials and workmanship.