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GMC Sierra 3500 Cooling System Relays

This page lists cooling system relays for the GMC Sierra 3500, covering model years 2001–2007. Relays and relay kits are the electrical switching parts in this range. Choose your model year above and this page keeps only the cooling system relays that fit your GMC Sierra 3500. Each listing is matched to our vehicle fitment data before it appears here.

1 - 2 of 2 results

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Picture of Painless Wiring Dual Activation Electric Fan Relay Kit

Painless Wiring Dual Activation Electric Fan Relay Kit

40 reviews
Vehicle Specific
from $63
In Stock (10+)
Picture for manufacturer Painless Wiring
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Best Seller Free Shipping
Picture of Painless Performance Fan-Thom II Electric Fan Relay Kit

Painless Performance Fan-Thom II Electric Fan Relay Kit

32 reviews
Vehicle Specific
from $49
In Stock (10+)
Picture for manufacturer Painless Wiring
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What's here for your GMC Sierra 3500

  • Relays for cooling system circuits
  • Relay kits that bundle related components

The widest selection here comes from Painless Wiring and Airtex Automotive Division. Other categories GMC Sierra 3500 owners shop for: GMC Sierra 3500 Shocks and Struts, GMC Sierra 3500 Seats and Seat Parts and GMC Sierra 3500 Exhaust and Tail Pipes, or browse all GMC Sierra 3500 parts and accessories.