Denso 280-4260 Starter

Denso Reman Starter for Mazda 3

The Denso Reman Starter 280-4260 is a 12-volt, clockwise-rotation starter built for select Mazda 3 and Mazda 3 Sport applications. It is remanufactured to restore dependable cranking performance with factory-style fitment for 2004-2009 Mazda 3 and 2009 Mazda 3 Sport models.

Key Features

• 12.0V starter with clockwise rotation
• 1.0 kW power rating for OE-style starting performance
• Remanufactured Denso starter built from Mitsubishi OE family components
• High-voltage tested armature and field coils
• Refinished commutators with performance validation
• Premium copper terminals, plus new bearings, brushes, and seals
• Bench-tested for factory-original operation before release

Product Details

Denso remanufactured starters are rebuilt with a focus on electrical integrity, consistent cranking torque, and repeatable starting performance. The 280-4260 follows Denso’s reman process, which includes testing and replacement of wear items, refinishing of critical contact surfaces, and final bench verification. For drivers searching for a reman starter for Mazda 3 2004-2009 or a starter motor for 2009 Mazda 3 Sport, this unit is built to match the original application requirements.

This part cross-references Bosch SR4235X and Remy 17471 for the same application. The Denso Reman Starter 280-4260 is also a practical replacement choice when you need a 12V clockwise starter for Mazda 3 starting-system service.

What It Helps Fix

• Slow or weak engine cranking
• No-start conditions caused by starter wear
• Intermittent starting from worn brushes or terminals
• Electrical resistance issues at the starter connection points
• Starting performance loss from heat- or age-related component wear

Installation Notes

Verify the vehicle’s starter specifications before installation, including 12-volt system requirements, clockwise rotation, and 1.0 kW rating. Confirm fitment for 2004-2009 Mazda 3 and 2009 Mazda 3 Sport by matching the original part number and connector layout. Inspect battery condition, cable integrity, and charging-system output during replacement to avoid repeat starting complaints.

Quality Assurance

Denso remanufactured starters are processed with high-voltage testing, component replacement, commutator refinishing, and final bench testing to support consistent performance. Denso’s long OE electrical-component background informs the remanufacturing process used on this starter line.