Dorman 645-900 Transmission Fluid Temperature Sensor Connector

Name: Dorman 645-900 Transmission Fluid Temperature Sensor Connector
Brand: Dorman
SKU: BKLB-645-900
Price: 37.45 USD
Availability: InStock

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⚙️ 220 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Saturn, SC1, SC2, SL, SL1, SL2, SW2, SW1, and SC

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Reliable Transmission Fluid Temperature Sensor Connector for Saturn Vehicles

The Dorman 645-900 Transmission Fluid Temperature Sensor Connector is designed specifically for Saturn models including SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2. This female connector ensures a secure and accurate connection for your transmission fluid temperature sensor, helping maintain optimal transmission performance.

Wiring harness length of 16 inches for flexible installation
20-gauge wire measurement for reliable electrical conductivity
Two female bullet terminals for secure and corrosion-resistant connections
Phosphor bronze tin-plated terminals for enhanced durability
Includes one pigtail connector for easy replacement

Durable Design and Precise Fitment

The Dorman 645-900 connector features a 16-inch wiring harness with 20-gauge wires, providing the right balance of flexibility and electrical performance. The two female bullet terminals are made from phosphor bronze with a tin plating to resist corrosion and ensure long-lasting connectivity. This connector is engineered to match the original equipment specifications for Saturn SC, SC1, SC2, SL, SL1, SL2, SW1, and SW2 models, making it a reliable choice for transmission fluid temperature sensor repairs.

Compatible Saturn Models and Applications

This transmission fluid temperature sensor connector is compatible with the following Saturn vehicles:

Saturn SC, SC1, SC2
Saturn SL, SL1, SL2
Saturn SW1, SW2

It is designed to replace worn or damaged connectors that can cause inaccurate sensor readings or transmission issues.

Common Issues Addressed by This Connector

Intermittent or faulty transmission fluid temperature sensor signals
Corroded or damaged sensor connector terminals
Electrical shorts or open circuits in the sensor wiring
Transmission shifting problems related to sensor failure
Check engine light triggered by sensor connection faults

Installation Notes and Tips

When installing the Dorman 645-900 connector, ensure the wiring harness is routed away from heat sources and moving parts to prevent premature wear. Use dielectric grease on the terminals to improve corrosion resistance and maintain a solid electrical connection. Verify the connector is fully seated and locked to avoid intermittent sensor readings.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. The 645-900 Transmission Fluid Temperature Sensor Connector is backed by Dorman's limited warranty, providing confidence in durability and function for your Saturn vehicle.

Brand	Dorman
Part Number	645-900
Connector Gender	Female
Overall Length	16 in
Package Contents	1 Pigtail
Terminal Gender	Female
Terminal Material	Phosphor Bronze (Tin Plate)
Terminal Quantity	2
Terminal Type	Bullet
Wire Gauge Measurement	20
Wiring Harness Length	16

This part fits 220 vehicles. Search below:

Year	Make	Model	Transmission	Position	Notes
2002	Saturn	SC1	Automatic	N/A
2002	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2002	Saturn	SC1		N/A
2002	Saturn	SC2	Automatic	N/A
2002	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2002	Saturn	SC2		N/A
2002	Saturn	SL	Automatic	N/A
2002	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2002	Saturn	SL		N/A
2002	Saturn	SL1	Automatic	N/A
2002	Saturn	SL1		N/A
2002	Saturn	SL2	Automatic	N/A
2002	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2002	Saturn	SL2		N/A
2001	Saturn	SC1	Automatic	N/A
2001	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2001	Saturn	SC1		N/A
2001	Saturn	SC2	Automatic	N/A
2001	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2001	Saturn	SC2		N/A
2001	Saturn	SL	Automatic	N/A
2001	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2001	Saturn	SL		N/A
2001	Saturn	SL1	Automatic	N/A
2001	Saturn	SL1		N/A
2001	Saturn	SL2	Automatic	N/A
2001	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2001	Saturn	SL2		N/A
2001	Saturn	SW2	Automatic	N/A
2001	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2001	Saturn	SW2		N/A
2000	Saturn	SC1	Automatic	N/A
2000	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2000	Saturn	SC1		N/A
2000	Saturn	SC2	Automatic	N/A
2000	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2000	Saturn	SC2		N/A
2000	Saturn	SL	Automatic	N/A
2000	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2000	Saturn	SL		N/A
2000	Saturn	SL1	Automatic	N/A
2000	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2000	Saturn	SL1		N/A
2000	Saturn	SL2	Automatic	N/A
2000	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2000	Saturn	SL2		N/A
2000	Saturn	SW2	Automatic	N/A
2000	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
2000	Saturn	SW2		N/A
1999	Saturn	SC1	Automatic	N/A
1999	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SC1		N/A
1999	Saturn	SC2	Automatic	N/A
1999	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SC2		N/A
1999	Saturn	SL	Automatic	N/A
1999	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SL		N/A
1999	Saturn	SL1	Automatic	N/A
1999	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SL1		N/A
1999	Saturn	SL2	Automatic	N/A
1999	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SL2		N/A
1999	Saturn	SW1	Automatic	N/A
1999	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SW1		N/A
1999	Saturn	SW2	Automatic	N/A
1999	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1999	Saturn	SW2		N/A
1998	Saturn	SC1	Automatic	N/A
1998	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SC1		N/A
1998	Saturn	SC2	Automatic	N/A
1998	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SC2		N/A
1998	Saturn	SL	Automatic	N/A
1998	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SL		N/A
1998	Saturn	SL1	Automatic	N/A
1998	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SL1		N/A
1998	Saturn	SL2	Automatic	N/A
1998	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SL2		N/A
1998	Saturn	SW1	Automatic	N/A
1998	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SW1		N/A
1998	Saturn	SW2	Automatic	N/A
1998	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1998	Saturn	SW2		N/A
1997	Saturn	SC1	Automatic	N/A
1997	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SC1		N/A
1997	Saturn	SC2	Automatic	N/A
1997	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SC2		N/A
1997	Saturn	SL	Automatic	N/A
1997	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SL		N/A
1997	Saturn	SL1	Automatic	N/A
1997	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SL1		N/A
1997	Saturn	SL2	Automatic	N/A
1997	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SL2		N/A
1997	Saturn	SW1	Automatic	N/A
1997	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SW1		N/A
1997	Saturn	SW2	Automatic	N/A
1997	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1997	Saturn	SW2		N/A
1996	Saturn	SC1	Automatic	N/A
1996	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SC1		N/A
1996	Saturn	SC2	Automatic	N/A
1996	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SC2		N/A
1996	Saturn	SL	Automatic	N/A
1996	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SL		N/A
1996	Saturn	SL1	Automatic	N/A
1996	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SL1		N/A
1996	Saturn	SL2	Automatic	N/A
1996	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SL2		N/A
1996	Saturn	SW1	Automatic	N/A
1996	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SW1		N/A
1996	Saturn	SW2	Automatic	N/A
1996	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1996	Saturn	SW2		N/A
1995	Saturn	SC1	Automatic	N/A
1995	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SC1		N/A
1995	Saturn	SC2	Automatic	N/A
1995	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SC2		N/A
1995	Saturn	SL	Automatic	N/A
1995	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SL		N/A
1995	Saturn	SL1	Automatic	N/A
1995	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SL1		N/A
1995	Saturn	SL2	Automatic	N/A
1995	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SL2		N/A
1995	Saturn	SW1	Automatic	N/A
1995	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SW1		N/A
1995	Saturn	SW2	Automatic	N/A
1995	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1995	Saturn	SW2		N/A
1994	Saturn	SC1	Automatic	N/A
1994	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SC1		N/A
1994	Saturn	SC2	Automatic	N/A
1994	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SC2		N/A
1994	Saturn	SL	Automatic	N/A
1994	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SL		N/A
1994	Saturn	SL1	Automatic	N/A
1994	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SL1		N/A
1994	Saturn	SL2	Automatic	N/A
1994	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SL2		N/A
1994	Saturn	SW1	Automatic	N/A
1994	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SW1		N/A
1994	Saturn	SW2	Automatic	N/A
1994	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1994	Saturn	SW2		N/A
1993	Saturn	SC1	Automatic	N/A
1993	Saturn	SC1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SC1		N/A
1993	Saturn	SC2	Automatic	N/A
1993	Saturn	SC2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SC2		N/A
1993	Saturn	SL	Automatic	N/A
1993	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SL		N/A
1993	Saturn	SL1	Automatic	N/A
1993	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SL1		N/A
1993	Saturn	SL2	Automatic	N/A
1993	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SL2		N/A
1993	Saturn	SW1	Automatic	N/A
1993	Saturn	SW1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SW1		N/A
1993	Saturn	SW2	Automatic	N/A
1993	Saturn	SW2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1993	Saturn	SW2		N/A
1992	Saturn	SC	Automatic	N/A
1992	Saturn	SC		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1992	Saturn	SC		N/A
1992	Saturn	SL	Automatic	N/A
1992	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1992	Saturn	SL		N/A
1992	Saturn	SL1	Automatic	N/A
1992	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1992	Saturn	SL1		N/A
1992	Saturn	SL2	Automatic	N/A
1992	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1992	Saturn	SL2		N/A
1991	Saturn	SC	Automatic	N/A
1991	Saturn	SC		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1991	Saturn	SC		N/A
1991	Saturn	SL	Automatic	N/A
1991	Saturn	SL		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1991	Saturn	SL		N/A
1991	Saturn	SL1	Automatic	N/A
1991	Saturn	SL1		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1991	Saturn	SL1		N/A
1991	Saturn	SL2	Automatic	N/A
1991	Saturn	SL2		N/A	Transmission Fluid Temperature Sensor Connector - 2 Way
1991	Saturn	SL2		N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

121170871P1439807PT668S-1170

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.