For 1990 GMC R1500 Suburban Engine Coolant Temperature Switch API 56736TMVB

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For 1990 GMC K2500 Engine Coolant Temperature Switch API 27671RJTZ

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For 1990 GMC K1500 Engine Coolant Temperature Switch API 41118KJYC

For 1990 GMC C2500 Engine Coolant Temperature Switch API 51949PJRD

For 1990 GMC Jimmy Engine Coolant Temperature Switch API 32881DDRY 5.7L V8