Dorman 645-786 Engine Coolant Level Sensor Connector

Engine Coolant Level Sensor Connector for GM Vehicles

Dorman 645-786 is an engine coolant level sensor connector built to match the appearance and function of the original connector on specified applications. It uses quality materials and a 3-wire female blade-terminal design to support a secure electrical connection in the coolant level indicator circuit.

Key Features

• Engine coolant level sensor connector for OE-style replacement
• 3-way female connector with blade terminals
• 18-gauge wire leads with 16.14 in. overall length
• Plastic terminal material and black connector housing
• Designed for direct replacement on select Chevrolet, Buick, Pontiac, and Oldsmobile models

Detailed Description

This Dorman coolant level sensor connector, part number 645-786, is made for vehicles that use a 3-wire coolant level indicator sensor connection. It is a practical replacement for damaged, brittle, or corroded connector ends on applications such as the Chevrolet Impala, Chevrolet Monte Carlo, Buick Regal, and Pontiac Grand Prix. The connector is engineered to mirror the original hardware’s fit and function, helping restore a dependable electrical interface at the coolant reservoir or level sensor circuit. This part cross-references Standard Ignition S-574 for the same application.

What It Helps Fix

• Broken or cracked coolant level sensor connector housings
• Corroded terminals causing intermittent coolant level warning signals
• Loose electrical contact at the coolant level indicator sensor
• Damaged wiring pigtails at the reservoir sensor connection
• Faulty connector ends on GM coolant level indicator circuits

Installation Notes and Tips

Verify the vehicle uses a 3-way female coolant level indicator sensor connector before installation. Match the terminal style, wire count, and connector shape to the original part, and inspect the mating sensor and nearby wiring for corrosion or heat damage. Confirm fitment for your specific year and model, including 2000-2003 Chevrolet Impala, 1995-2003 Chevrolet Monte Carlo, and 1990-2002 Pontiac Grand Prix applications.

Quality Assurance

Dorman designs this connector to match original appearance and function on listed applications, using quality materials for reliable performance and durability. It is a direct-fit electrical connector solution for select GM vehicles, including Buick Regal, Chevrolet Lumina, and Pontiac Firebird models.