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2021 GMC Sierra 3500 HD
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60-Day Returns
Lifetime Replacement
2021 GMC Sierra 3500 HD

2021 GMC Sierra 3500 HD Gaskets

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Gasket - Direct Fit, Sold individually
AC Delco®
Gasket - Direct Fit, Sold individually
Part Number: AC24299822
Guaranteed to Fit
$19.49
Vehicle Fitment
  • 2021 GMC Sierra 3500 HD AT4 All Engines 4-Door, Crew Cab Pickup, 10-Speed, Automatic Transmission, transmissionmfrcode : 10L1000
  • 2021 GMC Sierra 3500 HD SLE All Engines 2-Door, Standard Cab Pickup, 10-Speed, Automatic Transmission, transmissionmfrcode : 10L1000
  • 2021 GMC Sierra 3500 HD Denali All Engines 4-Door, Crew Cab Pickup, 10-Speed, Automatic Transmission, transmissionmfrcode : 10L1000
  • 2021 GMC Sierra 3500 HD Base All Engines 4-Door, Cab & Chassis, 10-Speed, Automatic Transmission, transmissionmfrcode : 10L1000
  • 2021 GMC Sierra 3500 HD SLT All Engines 4-Door, Crew Cab Pickup, 10-Speed, Automatic Transmission, transmissionmfrcode : 10L1000
Product Details
Warranty : 24-months or unlimited mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
Gasket - Direct Fit, Sold individually
AC Delco®
Gasket - Direct Fit, Sold individually
Part Number: AC84757352
Guaranteed to Fit
$24.49
Vehicle Fitment
  • 2021 GMC Sierra 3500 HD SLE 8 Cyl 6.6L 4-Door, Extended Cab Pickup, 162.5 in. Wheelbase, 3.73R(GT4), POSITRACTION L/SLIP R/AXL(G80), SINGLE/DUAL REAR WHEEL, RIDE & HANDLING(DZW)
  • 2021 GMC Sierra 3500 HD SLT 8 Cyl 6.6L 4-Door, Crew Cab Pickup, 158.9 in. Wheelbase, 3.42 Ratio(GU6), POSITRACTION L/SLIP R/AXL(G80)
  • 2021 GMC Sierra 3500 HD Denali 8 Cyl 6.6L 4-Door, Crew Cab Pickup, 158.9 in. Wheelbase, 3.73R(GT4), POSITRACTION L/SLIP R/AXL(G80)
  • 2021 GMC Sierra 3500 HD AT4 8 Cyl 6.6L 4-Door, Crew Cab Pickup, 158.9 in. Wheelbase, 3.73R(GT4), POSITRACTION L/SLIP R/AXL(G80)
  • 2021 GMC Sierra 3500 HD Base 8 Cyl 6.6L 170.8 in. Wheelbase, DUAL REAR WHEEL, RIDE & HANDLING(DZW), 3.42 Ratio(GU6), POSITRACTION L/SLIP R/AXL(G80)
Product Details
Location : RearWarranty : 1-year or 12,000-mile AC Delco limited warrantyQuantity Sold : Sold individuallyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Recommended Use : OE ReplacementProduct Fit : Direct Fit
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