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Guaranteed to Fit2021 GMC Sierra 3500 HD Change Vehicle
AC Delco® 2021 GMC Sierra 3500 HD - Differential Lock Actuator, Sold individually
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$14.49
Manufacturer #84757348
Guaranteed to Fit2021 GMC Sierra 3500 HD Change Vehicle
Qty:
1
Your Vehicle Fit Details
Vehicle Name
Submodel
Engine
Fitment Information
2021 GMC Sierra 3500 HD
Base
8 Cyl 6.6L
4-Door, Crew Cab Pickup, 172.0 in. Wheelbase, 3.42 Ratio(Gu6); Positraction L/Slip R/Axl(G80); Single Rear Wheels(Srw); Dual Rear Wheel; Ride & Handling(Dzw)
2021 GMC Sierra 3500 HD
SLE
8 Cyl 6.6L
176.7 in. Wheelbase, Dual Rear Wheel; Ride & Handling(Dzw); 3.42 Ratio(Gu6); Positraction L/Slip R/Axl(G80)
2021 GMC Sierra 3500 HD
SLT
8 Cyl 6.6L
4-Door, Crew Cab Pickup, 172.0 in. Wheelbase, 3.73R(Gt4); Positraction L/Slip R/Axl(G80); Single Rear Wheels(Srw); Dual Rear Wheel; Ride & Handling(Dzw)
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, 172.0 in. Wheelbase, 3.73R(Gt4); Positraction L/Slip R/Axl(G80); Single Rear Wheels(Srw); Dual Rear Wheel; Ride & Handling(Dzw)
Highlights
Brand:
Prop 65 Warning:
WARNING: 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.
Product Fit:
Direct Fit
Quantity Sold:
Sold individually
Warranty:
24-months or unlimited mile AC Delco limited warranty
Fitnotes:
4-Door, Crew Cab Pickup, 172.0 in. Wheelbase, 3.42 Ratio(Gu6); Positraction L/Slip R/Axl(G80); Single Rear Wheels(Srw); Dual Rear Wheel; Ride & Handling(Dzw),176.7 in. Wheelbase, Dual Rear Wheel; Ride & Handling(Dzw); 3.42 Ratio(Gu6); Positraction L/Slip R/Axl(G80),4-Door, Crew Cab Pickup, 172.0 in. Wheelbase, 3.73R(Gt4); Positraction L/Slip R/Axl(G80); Single Rear Wheels(Srw); Dual Rear Wheel; Ride & Handling(Dzw),4-Door, Crew Cab Pickup, 158.9 in. Wheelbase, 3.73R(Gt4); Positraction L/Slip R/Axl(G80)
Vehicle Fitment Information
Vehicle Name
Submodel
Engine
Fitment Information
2020-2021 Chevrolet Silverado 2500 HD
Custom
8 Cyl 6.6L
4-Door, Crew Cab Pickup, 3.73R(Gt4); Positraction L/Slip R/Axl(G80)
2020-2021 Chevrolet Silverado 2500 HD
High Country
8 Cyl 6.6L
4-Door, Crew Cab Pickup, 3.42 Ratio(Gu6); Positraction L/Slip R/Axl(G80)
2020-2021 Chevrolet Silverado 2500 HD
LT
8 Cyl 6.6L
4-Door, Extended Cab Pickup, 3.42 Ratio(Gu6); Positraction L/Slip R/Axl(G80)
2020-2021 Chevrolet Silverado 2500 HD
LTZ
8 Cyl 6.6L
4-Door, Extended Cab Pickup, 3.73R(Gt4); Positraction L/Slip R/Axl(G80)
2020-2021 Chevrolet Silverado 2500 HD
WT
8 Cyl 6.6L
4-Door, Extended Cab Pickup, 3.73R(Gt4); Positraction L/Slip R/Axl(G80)
Page 1 of 4 | Showing 1 - 5 of 19 results
Product Information
ACDELCO DIFFERENTIAL LOCK ACTUATOR
The factory-original fit and lasting function of ACDelco’s Differential Lock Actuator provides the perfect repair without breaking your budget. Established in 1899, ACDelco manufactures original GM parts and premium OE replacement parts for other brands in the automotive aftermarket.
- High-grade design delivers extended lifespan
- Carefully formed to suit your specific vehicle
- Engineered to OE-quality standards
- Has undergone stringent evaluation to guarantee proper fit and performance
Need help?Call our product expert1-866-529-0412
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Warranty Policy
Right parts, guaranteed. If you find any defects, let us know within 60 days and we’ll take care of it. Check out our Warranty Policy for more details.
Shipping Policy
We ship fast so you can get on the road that much faster. Check out our Shipping Policy for more details.
Easy Return Policy
We’re only happy if you’re happy. If you’re not entirely satisfied with your order, you may be entitled to a refund. Check out our Return Policy for more details.