Dorman 645-237 Multi-Purpose Electrical Connector

Dorman 645-237 Electrical Connector

Dorman 645-237 is a multi-purpose female electrical connector built for dependable circuit repair and accessory wiring. It provides a practical solution for service disconnects and replacement pigtail repairs on a wide range of GM vehicles, including Chevrolet Silverado, GMC Sierra, and Chevrolet Tahoe applications.

• Female 2-way connector with leads for electrical repair work
• 16-gauge wiring harness with a 17-inch harness length
• Square connector shape with blade-style terminals
• Available in blue, white, gray, and green color variants
• Direct replacement style for common throttle position sensor and general electrical connector service

Detailed Product Overview

This Dorman electrical connector is engineered for reliable performance in repair and accessory installation work where a damaged plug, worn terminal, or broken lead needs to be replaced. The female terminal design and two-wire layout make it suitable for a variety of underhood and body electrical connections. It is commonly used on Chevrolet Colorado, Silverado 1500, GMC Sierra, and Buick, Pontiac, and Saturn models listed in the fitment data. Part number 645-237 is also referenced by OE-style interchange numbers for service matching.

This part cross-references OE-style numbers such as 1P1592 and 2701100 for the same application.

Common Repair Uses

• Broken or heat-damaged connector housings
• Corroded or loose electrical terminals
• Intermittent sensor signal loss at the connector
• Damaged throttle position sensor connector wiring
• Failed pigtail repairs during harness service

Installation Notes and Tips

Match the connector shape, terminal type, wire gauge, and terminal count before installation. Verify the vehicle-side connector style and confirm the application notes, especially on Saturn Outlook, Vue, Aura, Relay, Sky, and Chevrolet models listed with throttle position sensor connector notes. Use proper splice and terminal repair practices to maintain circuit integrity and secure the harness away from heat, vibration, and abrasion.

Quality Assurance

Dorman manufactures replacement electrical connectors for service repair use with attention to fit, function, and durability. Part number 645-237 is built for dependable electrical repairs across confirmed GM applications, including Chevrolet Silverado, GMC Sierra, and Chevrolet Tahoe fitments.