Dorman 645-900 Transmission Fluid Temperature Sensor Connector

Transmission Fluid Temperature Sensor Connector for Saturn

Dorman 645-900 is a transmission fluid temperature sensor connector pigtail built for clean electrical repairs and accessory installations. It uses weatherproof terminals and a locking tab to support a secure quick-disconnect connection on Saturn SC1, SC2, SL, SL1, SL2, SW1, and SW2 applications.

Key Features

• Transmission fluid temperature sensor connector pigtail
• 16 in. wiring harness length for repair routing
• 2-wire, 20-gauge construction
• Female connector with female bullet terminals
• Phosphor bronze terminals with tin plating
• Weatherproof terminals and locking tab for a secure connection
• Direct replacement style for Saturn transmission sensor wiring repairs

Detailed Description

This Dorman 645-900 connector is built for transmission fluid temperature sensor service where the original connector has damaged terminals, broken locking features, or deteriorated wiring. The 16-inch harness gives added reach for splice-in repairs, while the bullet-style female terminals and weather-resistant design help restore a dependable electrical connection. It is a practical choice for Saturn SC1, Saturn SC2, and Saturn SL-series transmission sensor connector repairs, including Saturn SW1 and Saturn SW2 applications.

This part cross-references Standard Ignition S-1170 for the same application.

What It Helps Fix

• Broken or brittle transmission sensor connector housings
• Corroded or loose electrical terminals
• Intermittent transmission fluid temperature sensor signals
• Damaged wiring near the transmission harness
• Poor quick-disconnect retention at the sensor connection

Installation Notes and Tips

Verify the connector style, terminal count, and wire layout before splicing into the vehicle harness. Match the existing wire routing and secure the repair away from heat, moving parts, and fluid exposure. Confirm a solid terminal lock after installation and inspect the connection for proper seating on Saturn SC1, Saturn SL2, and related models listed in the fitment data.

Quality Assurance

Dorman manufactures replacement electrical repair parts with attention to fit, function, and serviceability. The connector uses weatherproof terminals and phosphor bronze terminals with tin plating to support reliable electrical contact in transmission sensor applications.