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GMC K2500 Emission Control Relays

This page brings together emission control relays for the GMC K2500, covering model years 1979–2000. The range includes catalytic converter temperature indicator relays and diesel glow plug relays. Choose your model year above and this page keeps only the emission control relays that fit your GMC K2500. Each listing is matched to our vehicle fitment data before it appears here.

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Nothing in stock matched your search, but here are matching products that are currently out of stock.

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Picture of Bosch 77061WS Catalytic Converter Temperature Indicator Relay Representative Photo, actual item may vary

Bosch 77061WS Catalytic Converter Temperature Indicator Relay

36 reviews
Part: 77061WS
Vehicle Specific
$3.77
Ships from manufacturer
Picture for manufacturer Bosch

What's here for your GMC K2500

  • Catalytic Converter Temperature Indicator Relay
  • Diesel Glow Plug Relay

The widest selection here comes from Standard Motor Products, Auto Extra, Motorcraft, and Baldwin. Other categories GMC K2500 owners shop for: GMC K2500 Exhaust and Tail Pipes, GMC K2500 Exterior Lights and GMC K2500 Steering Gear and Parts, or browse all GMC K2500 parts and accessories.