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GMC K1500 Cooling System Fittings

This page brings together cooling system fittings for the GMC K1500 covering model years 1979–1999. The range centers on automatic transmission oil cooler end fittings, with options from several suppliers to suit trucks across that full production span. Select your year above and we'll show only the cooling system fittings that fit your GMC K1500. Fitment is checked against our vehicle data for every part listed.

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What's here for your GMC K1500

  • Automatic Transmission Oil Cooler End Fittings

The widest selection here comes from Dorman, ACDelco, Hayden Automotive, and Four Seasons, giving you multiple sourcing options across the 1979–1999 model years. Other categories GMC K1500 owners shop for: GMC K1500 Steering Gear and Parts, GMC K1500 Springs and Suspension Parts and GMC K1500 Exterior Lights, or browse all GMC K1500 parts and accessories.