Denso 280-4322 Starter

Denso Reman Starter for Mazda 3

The Denso 280-4322 reman starter is a 12-volt, clockwise-rotation starter built for Mazda 3 and Mazda 3 Sport applications. It is part of Denso’s Reman Starter line, which focuses on OE-style electrical performance with remanufactured components that are bench-tested before release.

Key Features

• 12.0-volt starter with clockwise rotation
• 1.0 kW power rating for dependable cranking output
• Remanufactured to Denso OE standards for the Mitsubishi OE family
• High-voltage tested armature and field coils
• Refinished commutators with performance validation
• Premium copper terminals for consistent electrical current
• New bearings, brushes, and seals

Product Details

Denso 280-4322 is a remanufactured starter designed for direct replacement in select Mazda compact cars. Denso’s starter program is built around OE engineering practices, with inspection and replacement steps focused on electrical integrity, cranking torque, and repeatable starting performance. This part cross-references Mazda LF8J-18-400B for the same application.

Compatible With 2010 Mazda 3 Sport, N/A; 2010-2011 Mazda 3, N/A; 2011 Mazda 3 Sport, N/A; and 2012 Mazda 3 and Mazda 3 Sport, N/A, to 01/07/2012. The 280-4322 is a practical replacement choice when servicing a Mazda 3 starter motor or Mazda 3 Sport reman starter application.

Common Starting Issues This Part May Address

• Slow or weak engine cranking
• No-start condition caused by starter failure
• Intermittent starter engagement
• Electrical wear in the starter motor assembly
• Cold-weather or hot-weather starting difficulty tied to starter performance

Installation Notes and Tips

Verify the vehicle’s build date before ordering, since 2012 Mazda 3 and Mazda 3 Sport coverage is listed only through 01/07/2012. Confirm 12-volt system requirements, clockwise rotation, and 1.0 kW specification before installation. Inspect battery condition, cable connections, and charging-system output during replacement to help avoid repeat starting complaints.

Quality Assurance

Each Denso reman starter is bench-tested to confirm factory-original performance expectations. The remanufacturing process includes testing of armatures and field coils, replacement of wear components, and validation of critical electrical contact points to support consistent operation in Mazda 3 and Mazda 3 Sport applications.