MPA Electrical 12221 Starter Motor

Starter for GM and Isuzu Applications

MPA Electrical Part Number 12221 is a remanufactured 12-volt starter built with a direct drive design and a 1.3 kW rating. It uses clockwise rotation and a 9-tooth drive, making it a direct OE-style replacement for a wide range of GM and Isuzu vehicles.

This starter is built for applications such as Chevrolet S10, GMC Sonoma, Buick Regal, Pontiac Grand Prix, and Isuzu Pickup models listed below. Part number 12221 also cross-references AMS Automotive 6415 and 6437 for the same application.

Key Features

• Remanufactured starter from MPA Electrical
• Direct drive design for OE-style fitment
• 1.3 kW output rating
• 12-volt electrical system
• Clockwise rotation
• 9-tooth drive gear
• Manufacturer listed as Delco

Detailed Description

MPA Electrical 12221 is a remanufactured starter designed for vehicles that use a Delco-style direct drive unit with clockwise rotation. The 1.3 kW rating and 12-volt configuration align with common starter requirements across many 1990s Chevrolet, Buick, Oldsmobile, Pontiac, GMC, and Isuzu platforms. If you are replacing a worn starter on a Chevrolet Cavalier, Pontiac Sunfire, or Oldsmobile Cutlass Supreme, this part number 12221 provides a fitment-specific replacement option.

Compatible With 1994-1996 Chevrolet S10, 1994-1996 GMC Sonoma, 1996 Isuzu Hombre, 1994-1995 Buick Century, 1991-1995 Buick Regal, 1994-1995 Buick Skylark, 1990-1995 Chevrolet Cavalier, 1990-1995 Chevrolet Corsica, 1991-1995 Chevrolet Lumina, 1991-1995 Chevrolet Lumina APV, 1995 Chevrolet Monte Carlo, 1994-1995 Oldsmobile Achieva, 1994-1995 Oldsmobile Cutlass Ciera, 1991-1995 Oldsmobile Cutlass Supreme, 1994-1995 Pontiac Grand Am, 1991-1995 Pontiac Grand Prix, 1995 Pontiac Sunfire, 1991-1995 Pontiac Trans Sport, 1991-1994 Isuzu Pickup, 1994 Oldsmobile Cutlass Cruiser, 1991-1994 Oldsmobile Silhouette, 1991-1994 Pontiac Sunbird, and 1990-1991 Pontiac Tempest.

What This Starter Helps Address

• Engine no-crank condition caused by starter failure
• Slow or inconsistent cranking during startup
• Clicking at the key with no engine rotation
• Starter wear on high-mileage GM and Isuzu vehicles
• Replacement needs for Delco-style 12V direct drive starters

Installation Notes and Tips

Verify the vehicle’s original starter configuration before installation, including 12-volt system requirements, clockwise rotation, and 9-tooth drive engagement. Confirm the application against the vehicle’s year, make, and model, especially on listings with notes such as the 1992 Chevrolet Cavalier with 8mm battery terminal, the 1992 Chevrolet Corsica with 8mm battery terminal on solenoid, and the 1991-1992 Isuzu Rodeo with Isuzu transmission.

For fitment searches, this starter is commonly referenced for Chevrolet S10 starter replacement, GMC Sonoma starter replacement, and Pontiac Grand Prix starter replacement across the 1990-1996 model years shown in the fitment data.

Quality Assurance

MPA Electrical supplies this part as a remanufactured starter built to match the listed OE-style specifications for the confirmed applications. Part number 12221 is cataloged for direct replacement use on the vehicles shown above.