Engine
30
Used GMC Parts
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Transmission & Drivetrain
33
Cooling, Heating & A/C
14
Fuel, Air & Ignition
17
Exhaust & Emissions
2
Electrical & Electronics
55
Hybrid & EV Parts
1
Steering
9
Suspension
13
Brakes
17
Wheels & Tires
7
Lighting
13
Glass & Windows
11
Wipers & Washers
29
Front Body Parts
8
Rear Body Parts
4
Doors & Mirrors
20
Body & Exterior
7
Interior
19
Other Parts
158
About GMC parts
GMC trucks and SUVs share their mechanical parts with Chevrolet, which makes used GMC parts easy to source: the Sierra is the twin of the Silverado, the Yukon of the Tahoe, the Canyon of the Colorado and the Terrain of the Equinox. Engines, transmissions, axles, doors and interior parts usually interchange between twins of the same generation.
The grille, hood, headlights, front fenders and some trim pieces are GMC-specific, so order those by GMC part number. The RPO sticker in the glove box lists axle ratio, trim and options and is the fastest way to confirm a match.