DENSO 281-8105 Heavy-Duty 12V Starter Motor 2.2kW 9-Tooth OSGR

The DENSO 281-8105 is a professional-grade 12-volt starter motor engineered for demanding industrial and heavy equipment applications. This high-performance starter delivers 2.2kW of reliable starting power with a clockwise rotation design, making it ideal for Cummins B3.3L engines (2003 and newer) and Komatsu 4D95L PC60 equipment.

Key Specifications:

• Output: 2.2kW (approximately 2.95 HP)
• Voltage: 12V DC
• Rotation: Clockwise (CW)
• Starter Type: OSGR (Offset Gear Reduction)
• Pinion Teeth: 9-tooth configuration
• Gear Diameter: 1.37 inches (34.8mm)
• Mounting Ear Holes: 14mm unthreaded (both positions)
• Battery Stud: M8-1.25 threaded connection

DENSO Quality & Engineering:

DENSO starters are built to OE standards with precision-engineered components for maximum cranking torque under all weather conditions. Each starter features high-voltage tested armature and field coils, premium copper terminals for clean electrical current, and all-new bearings, brushes, and seals. As a leading global automotive supplier, DENSO brings decades of original equipment expertise to the aftermarket, ensuring reliable performance and first-time fit installation.

Cross-Reference Part Numbers:

This starter replaces DENSO 280-8023, 428000-2650, 428000-2651, and 428080-2650; Cummins C6008631410 and 8631410; and Komatsu 600-863-1410. Designed for industrial engines, construction equipment, and heavy-duty applications where dependable starting performance is critical.