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2003 GMC Sierra 1500 HD

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Don't let a loose wire or damaged cable harness prevent your GMC Sierra 1500 HD from staying comfortable. Restore your heating and air conditioning with the OEM and aftermarket wire, cable and related components you need. With the right HVAC wiring, you'll enjoy the cool and warm air you need all year long.


Shop for the best prices on all your essential wiring needs. Your GMC Sierra 1500 HD uses specific components for your HVAC wiring, so be sure you select cables and wire harnesses that match your make and model vehicle. At StockWiseAuto.com, you can be confident you'll receive the right part at the right price.