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Curt 55315 Custom Wiring Harness for GMC K1500/K2500/K3500 1988-2000

Brand: Curt
Part Number: 55315
Product Type: Wiring Harness
Vehicle Fitment: GMC K1500/K2500/K3500 1988-2000
Condition: New
Shipping: Flat Rate Shipping
Was: $50.67
Sale: $38.00
Save: 25%
Save: $12.67


Curt custom wiring provides everything you need to connect your vehicle's electrical system to a trailer. With a plug-and-play connector, a custom wiring connector easily integrates with your vehicle to provide a standard trailer wiring connector, typically in the form of a 4-way flat. This custom wiring connector features a vehicle-specific design to perfectly fit certain years of the GMC K1500, K2500, K3500 (factory tow package required; to verify vehicle compatibility, see the Curt application guide. It uses an OEM-compatible connector to plug into the vehicle's OEM socket and provides a standard 4-way flat output to power the taillights, brake lights and turn signals on your trailer.


  • Plugs into existing OEM vehicle socket to provide a 4-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Dust cover included to keep connector clean when not in use
  • Backed by a limited one-year warranty


  • Electrical System Type: 2 Wire
  • T-Connector Location: T3
  • Output Type: 4-Way Flat
  • Installation Difficulty: Easy

Vehicle Fitment 

Year Make Model
1988-1999 GMC K1500
1988-2000 GMC K2500
1988-2000 GMC K3500



Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.
  • W1.0000” x H1.0000” x L1.0000”
  • $18.95
  • Flat Rate Shipping

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