About GMC Transmission

• GMC Assembly

  Shop GM Genuine Parts for new or remanufactured automatic transmission assemblies, including 6-speed, 10-speed, and 4-speed options for your GMC vehicle.

• Transmission Cooling

  We offer transmission fluid to help lubricate and cool the moving parts within the transmission, ensuring smooth gear shifts, reduces friction, and dissipates heat.

• Oil Pump & Lubrication Parts

  If you need a Transmission Control Module (TCM) or other sensors to determine when and how to shift gears, or a transmission cooler to help regulate the temperature of the transmission fluid, purchase the part you need today.

• Cooler Lines

  Our transmission mounts support and secure the transmission to the vehicle's chassis. Transmission lines or cooler lines might need to be replaced to help facilitate the flow of fluid, ensuring proper lubrication and cooling.

• Torque Converter

  A GM Genuine Parts torque converter allows the engine to keep running while the vehicle is stationary, and it provides torque multiplication for smoother acceleration.

• Fluid Levels

  Regular maintenance, including checking fluid levels, inspecting lines, and ensuring proper functioning of the TCM, are essential for the longevity and performance of the transmission

• Transmission Fluid

  Additionally, keeping the transmission fluid clean and at the right level helps prevent overheating and premature wear of transmission components

• Find OE Parts for popular GMC models:

  Acadia, C2500 Pickup, Canyon, Envoy, Hummer EV, K1500 Pickup, Savana 2500, Savana 3500, Sierra 1500, Sierra 2500, Sierra 3500, Sierra EV, Senoma, Terrain or Yukon