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GMC K3500 Cooling System Relays

This page gathers cooling system relays for the GMC K3500, covering model years 1985–2000. The range includes relay kits suited to various configurations of the K3500, sourced from suppliers with broad fitment coverage for this truck. Select your year above and we'll show only the cooling system relays that fit your GMC K3500. Fitment is checked against our vehicle data for every part listed.

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 K3500

  • Cooling system relay kits for GMC K3500 model years 1985–2000

The widest selection of cooling system relays here comes from Standard Motor Products and Painless Wiring, both carrying fitment-specific options across the K3500's model run. Other categories GMC K3500 owners shop for: GMC K3500 Exhaust and Tail Pipes, GMC K3500 Brake Hardware and GMC K3500 Valve Train Parts, or browse all GMC K3500 parts and accessories.