Bosch SR8581N Starter Motor

Reliable Starter for Select GM Vehicles

The Bosch Starter (New) SR8581N is designed to provide dependable starting power for a range of GM vehicles including Cadillac, Chevrolet, GMC, Hummer, and Pontiac models. Engineered with a 12-volt system and a 1.7 kW power rating, this starter ensures consistent engine engagement and performance.

• 12-volt electrical system compatible with most GM applications
• 1.7 kW power rating for efficient engine starting
• Closed aluminum nose cone for durability and corrosion resistance
• Clockwise rotation with 11 teeth for precise engagement
• Includes attached solenoid for streamlined installation
• Two mounting bolt holes for secure fitment
• New unit, not remanufactured, ensuring original equipment quality

About the Bosch Starter (New) Product Line

The Bosch Starter (New) line focuses on delivering brand-new starter motors that meet or exceed original equipment specifications. This product line emphasizes quality materials such as aluminum nose cones and integrated solenoids to provide reliable starting performance. The SR8581N is part of this line, offering a fresh, factory-built starter designed for direct replacement in compatible GM vehicles.

Detailed Product Description

The SR8581N starter features a closed aluminum nose cone that protects internal components from environmental damage while reducing weight. Its clockwise rotation and 11-tooth pinion gear ensure proper meshing with the engine flywheel. The attached solenoid simplifies wiring and installation, although mounting hardware and shims are not included. Designed for vehicles requiring a 12-volt starter with a 1.7 kW power rating, this unit is suitable for a variety of GM trucks and SUVs.

Compatible Vehicles and Common Applications

• Cadillac Escalade and Escalade EXT
• Chevrolet Camaro, Corvette, Express 2500/3500, Silverado 1500/2500/3500, Suburban 2500
• GMC Sierra 1500/2500/3500, Yukon, Yukon XL 1500/2500
• Hummer H2
• Pontiac Firebird

Common Issues Addressed by This Starter

• Failure to crank or start engine
• Intermittent starting problems
• Grinding or unusual noises during engine start
• Starter motor overheating or electrical faults
• Worn or damaged pinion gear engagement

Installation Notes and Tips

Ensure the vehicle battery is fully charged before installation. The SR8581N requires two mounting bolts for secure attachment; verify bolt condition and torque specifications. Since mounting hardware and shims are not included, reuse existing components if in good condition or source replacements separately. Confirm clockwise rotation compatibility with your engine. Proper electrical connections to the attached solenoid are critical for reliable operation.

Quality Assurance and Warranty

This Bosch starter is a new, original equipment quality part designed to meet manufacturer standards. While specific warranty details may vary, Bosch products typically come with a limited warranty covering defects in materials and workmanship. Refer to Bosch or your parts provider for exact warranty terms.