For 1987-1989 GMC R2500 Engine Coolant Temperature Sensor Connector 83617BNJQ

For 1987-1989 GMC R2500 Engine Coolant Temperature Sensor Connector 88436MZKB

For 1987-1989 GMC R2500 Engine Coolant Temperature Sensor Connector 79669TZ 1988

48TM86X Engine Coolant Temperature Sensor Connector Fits 1987-1989 GMC R2500

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For 1989 Chevrolet R2500 Engine Coolant Temperature Sensor Connector 19988GFMD

214-91026 Engine Coolant Temperature Sensor w/ Connector Pigtail Harness for GM