Bosch SR8620N Starter Motor

Bosch SR8620N Starter Overview

The Bosch SR8620N is a new 12-volt starter built for dependable engine cranking in a wide range of GM vehicles. With a 1.5 kW power rating, integrated solenoid, and clockwise rotation, it is a direct-fit replacement for many Buick, Chevrolet, Pontiac, and Oldsmobile applications.

Bosch Premium Starters are engineered and tested for consistent starting performance and reliable operation. The SR8620N is a practical choice for drivers servicing a Buick LeSabre, Chevrolet Impala, or Pontiac Grand Prix with a starter replacement that matches OE-style specifications.

Key Features

• 12-volt new starter with 1.5 kW power rating
• Clockwise starter rotation
• Integrated solenoid attached
• Aluminum nose cone and aluminum finish
• Closed nose design with 2 mounting bolt holes
• 11-tooth drive configuration
• Direct replacement for select Buick, Chevrolet, Pontiac, and Oldsmobile models

Detailed Product Description

The Bosch SR8620N starter is designed for OE-style fitment and dependable electrical starting performance. It uses a closed aluminum nose cone, a clockwise rotation pattern, and an attached solenoid to match the requirements of supported GM platforms. This starter is a strong fit for long-running applications such as the Buick Park Avenue, Chevrolet Monte Carlo, and Pontiac Bonneville, where consistent cranking and proper engagement are essential.

This part cross-references Bosch OE replacement numbers such as 10465421 and 89017452 for the same application. The Bosch Starter (New) line focuses on new-build replacement starters that align with factory-style starting system needs.

What This Starter Helps Address

• Slow or weak engine cranking
• No-start conditions caused by starter failure
• Intermittent starter engagement
• Grinding or clicking during startup
• Electrical starting issues on high-mileage GM vehicles

Installation Notes and Tips

Verify voltage, rotation, tooth count, and mounting style before installation. The SR8620N uses 2 mounting bolt holes, a closed nose, and an attached solenoid, so matching the original starter configuration is important for proper alignment and engagement. Mounting hardware and shims are not included.

Compatible With 2005-2009 Buick Allure; 2005-2009 Buick LaCrosse; 2006-2008 Buick Lucerne; 1998-2008 Pontiac Grand Prix; 1998-2005 Buick LeSabre; 1998-2005 Buick Park Avenue; 2000-2005 Chevrolet Impala; 1998-2005 Chevrolet Monte Carlo; 1998-2005 Pontiac Bonneville; 1998-2004 Buick Regal; 1998-2002 Chevrolet Camaro; 1998-2002 Pontiac Firebird; 1998-1999 Chevrolet Lumina; 1998-1999 Oldsmobile 88; 1998-1999 Oldsmobile Intrigue; 1998-1999 Oldsmobile LSS; 1998 Oldsmobile Regency.

Quality Assurance

Built by Bosch, this new starter is manufactured and tested to support reliable starting performance in the listed applications. It is intended as a direct replacement for supported GM vehicles and follows Bosch’s premium starter product standards.