Four Seasons 70001 Engine Coolant Temperature Sending Unit Switch Connector

Engine Coolant Temperature Sender Connector

Four Seasons 70001 is a harness connector for engine coolant temperature sender unit switch applications. It uses a female connector body with an oval shape and 2 male terminals, making it a direct-fit electrical connector for select vehicles that use a gauge-equipped coolant temperature sender.

The Four Seasons Harness Connector line focuses on replacement electrical connectors for underhood repairs where the original plug is heat-aged, brittle, or no longer locks securely. Part number 70001 is used on select Buick Century, Oldsmobile Cutlass Ciera, Pontiac 6000, Chevrolet Celebrity, and Jeep applications.

Key Features

• Brand: Four Seasons Harness Connector
• Part number: 70001
• Engine coolant temperature sending unit switch connector
• Female connector with 2 male terminals
• Oval connector shape for select OE-style fitments
• Used on gauge-equipped coolant temperature sender circuits
• Cross-reference: Dayco 70001

Fitment Details

• Fits 1994-1995 Buick Century, engine coolant temperature sender unit switch connector with gauge; harness connector.
• Fits 1988-1989 Buick Century, engine coolant temperature sender unit switch connector with gauge; harness connector.
• Fits 1994-1995 Oldsmobile Cutlass Ciera, engine coolant temperature sender unit switch connector with gauge; harness connector.
• Fits 1988-1989 Oldsmobile Cutlass Ciera, engine coolant temperature sender unit switch connector with gauge; harness connector.
• Fits 1989-1991 Pontiac 6000, engine coolant temperature sender unit switch connector with gauge; harness connector.
• Fits 1988-1990 Chevrolet Celebrity, engine coolant temperature sender unit switch connector with gauge; harness connector.
• Fits 1985-1990 Jeep Cherokee, harness connector.
• Fits 1986-1990 Jeep Comanche, harness connector.
• Fits 1986-1990 Jeep Wagoneer, harness connector.
• Fits 1987-1990 Jeep Wrangler, harness connector.
• Fits 1989-1990 Oldsmobile Cutlass, with gauge; 2 terminal; harness connector.
• Fits 1989-1990 Oldsmobile Cutlass Supreme, with gauge; 2 terminal; harness connector.
• Fits 1988 Pontiac 6000, with gauge; without electronic cluster; harness connector.

What It Helps Repair

• Broken or heat-damaged coolant temperature sender wiring plugs
• Intermittent or inaccurate temperature gauge readings caused by poor terminal contact
• Loose, corroded, or cracked connector housings at the sender
• Electrical connection issues at the engine coolant temperature sender switch
• Restoration of proper gauge signal on select Buick, Oldsmobile, Pontiac, Chevrolet, and Jeep models

Installation Notes

Verify connector shape, terminal count, and terminal gender against the original part before installation. This connector is specified for gauge-equipped coolant temperature sender applications, including select Buick Century, Oldsmobile Cutlass Ciera, Pontiac 6000, Chevrolet Celebrity, and Jeep Cherokee, Comanche, Wagoneer, and Wrangler models. Inspect the mating sender and harness for corrosion or damaged terminals before connecting the replacement plug.

Quality Assurance

Four Seasons supplies replacement harness connectors for electrical repair applications, and this part is identified by OE-style fitment data and established interchange references. Part number 70001 is cataloged for direct application matching on the listed vehicles.