Buy 2021 Gmc Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T 4WD SLT Crew Cab Pickup Automatic Transmission LITER, Make, Line - OEM Gmc Part # 85563686 (84885689, 85149480, 85532815, 86560008)

Pipe. Cooler. Assembly - Transmission Fluid CLEAR Inlet and Outlet. Automatic Transmission Oil Hose Assembly. Line.
Assembly. Automatic Transmission Oil Cooler Hose Assembly.

Automatic Transmission Oil Cooler Hose Assembly

Fits Sierra 1500, Silverado

5.3, 6.2 LITER, 5.3 liter, 6 speed trans. 5.3, 6.2 LITER, 5.3 liter, L82. Silverado, Sierra; 5.3L (L82).
Trans Oil Cooler Line - Repair or Replace
If your 2021 GMC Sierra 2500 HD is leaking transmission fluid—typically a reddish fluid that becomes darker as it ages—you may have a leaking transmission cooler line. Our GMC experts can diagnose the fault and repair it using factory genuine GMC parts.