2021 Gmc Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T 4WD SLT Crew Cab Pickup Automatic Transmission Oil Cooler Hose - 84211765

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2021 GMC Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T 4WD SLT Crew Cab Pickup

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Automatic Transmission Oil Cooler Hose Assembly (Rear, Upper)

Part Number: 84211765
Supersession(s): 86584620

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Hose. Pipe.
Automatic Transmission Oil Cooler Hose Assembly. Exc.Heavy Duty Cooling. Assembly - Transmission Fluid CLEAR Outlet. Automatic Transmission Oil Cooler Assembly. Line. Oil inlet tube.

Automatic Transmission Oil Cooler Hose Assembly

Fits Acadia, Blazer, XT5, XT6

3.6 LITER, W/O HEAVY DUTY COOLER, upper. 3.6 LITER, W/O HEAVY DUTY COOLING. 3.6 LITER, W/O HEAVY DUTY COOLING, rear. Acadia; 3.6L; w/o HD Cooling; Primary Lines (At Trans); Outlet. XT5; 3.6L; w/o Heavy Duty Cooling; Transaxle Side; Outlet. XT6; 3.6L; Outlet; w/o Heavy Duty Cooling.
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.