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GMC Sierra 2500 Emission Control Relays

This page lists emission control relays for the GMC Sierra 2500, covering model years 2001–2004. The range centers on the diesel glow plug relay, an electrical switching part used in the diesel starting circuit. Pick your GMC Sierra 2500's year above to narrow the list to emission control relays with confirmed fitment. Every part shown is checked against our vehicle data.

1 - 2 of 2 results

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Picture of Standard Motor Products Diesel Glow Plug Relay

Standard Motor Products Diesel Glow Plug Relay

41 reviews
Vehicle Specific
from $24
In Stock (10+)
Picture for manufacturer Standard Motor Products
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Best Seller Free Shipping
Picture of Airtex 1R1390 Diesel Glow Plug Relay

Airtex 1R1390 Diesel Glow Plug Relay

39 reviews
Part: 1R1390
Vehicle Specific
$218.80
In Stock (9)
Picture for manufacturer Airtex Automotive Division

What's here for your GMC Sierra 2500

  • Diesel glow plug relays

The widest selection here comes from Airtex Automotive Division and Standard Motor Products. Other categories GMC Sierra 2500 owners shop for: GMC Sierra 2500 Exterior Lights, GMC Sierra 2500 Doors and Door Parts and GMC Sierra 2500 Body and Paint Equipment, or browse all GMC Sierra 2500 parts and accessories.