Denso 280-4231 Starter

Denso Reman Starter for Mazda 6

The Denso 280-4231 reman starter is a 12-volt, clockwise-rotation starter built for Mazda 6 applications from 2003-2010. It is based on Mitsubishi OE family engineering and is remanufactured to restore dependable cranking performance for daily driving in hot or cold conditions.

Key Features

• 12.0V starter with 1.4 kW power rating
• Clockwise starter rotation
• Mitsubishi OE family design
• High-voltage tested armature and field coils
• Refinished commutators with performance validation
• New bearings, brushes, and seals
• Premium copper terminals and replaced fasteners

Product Details

Denso remanufactured starters are rebuilt with a test-and-replace process that focuses on electrical integrity and consistent cranking output. The 280-4231 uses high-voltage testing on the armature and field coils, while commutators are refinished and verified before final bench testing. For Mazda 6 owners, this reman starter provides an OE-style replacement path for starting-system service where factory fit and electrical performance matter. This part cross-references Bosch SR4232X for the same application.

Common Starting Issues It May Address

• Slow or weak engine cranking
• No-crank condition with a charged battery
• Intermittent starter engagement
• Clicking at key start without engine turnover
• Starting performance loss in cold or hot weather

Installation Notes and Tips

Fits 2003-2010 Mazda 6, N/A. Confirm the 12V electrical system, clockwise rotation, and 1.4 kW specification before installation. Inspect battery condition, cable connections, and charging-system output during starter replacement to avoid repeat starting faults. Verify the mounting and electrical interfaces match the original unit before final tightening.

Quality Assurance

Denso reman starters are bench-tested after remanufacturing to confirm factory-original performance targets. The brand’s OE supply background and controlled reman process support consistent fitment and electrical reliability for the Mazda 6 application.