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2021 GMC Sierra 1500

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ACDelco 12666591 Drive Belt Idler Pulley
for 2021 GMC Sierra 1500 2.7L L4 Gas DOHC Turbo

ACDelco 12666591 Drive Belt Idler Pulley - 2021 GMC Sierra 1500 Image 1
ACDelco 12666591 Drive Belt Idler Pulley - 2021 GMC Sierra 1500 Image 2
ACDelco 12666591 Drive Belt Idler Pulley - 2021 GMC Sierra 1500

ACDelco
Brand:ACDelco
Part Number: 12666591
UPC: 808709822462
Weight: 0.71 lbs
Condition:New



On Sale:

$23.99

Availability:
6 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the ACDelco 12666591 Drive Belt Idler Pulley for your 2021 GMC Sierra 1500. Buy now and secure your purchase online!

ACDelco GM Original Equipment Drive Belt Idler Pulleys are part of the accessory drive belt system on the front of your engine and are GM-recommended replacements for your vehicle's original components. A pulley can be ribbed or smooth and contains a sealed ball-bearing. The idler pulley is used to divert the drive belt to components such as the alternator, water pump or power steering pump. This original equipment drive belt idler pulley has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies
  • Helps repair noisy idler pulley bearing
  • Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
  • Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)

Specifications:

Belt Type:
Serpentine
Color:
Black
Groove Quantity:
5
Inside Diameter:
0.94 in.
Inside Diameter:
24 mm
Material:
Steel
Mounting Hole Quantity:
1
Outside Diameter:
2.97 in.
Outside Diameter:
75.34 mm
Programming Required:
No
Width:
1 in.
Width:
25.5 mm
Country of Origin:
CA

ACDelco 12666591 Drive Belt Idler Pulley compatibility with your 2021 GMC Sierra 1500...

Last Updated: 05/01/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2024

 

2023

 

2022

 

2021

 

2020

 

2019

 

2024

 

2023

 

2022

 

2021

 

2020

 

2019

 
GMC Sierra 1500

2.7L L4 Gas DOHC Turbo
1
 
Right (Passenger)
 
Eng: L3B
8th VIN Digit: K
 

GMC Sierra 1500



2.7L L4 Gas DOHC Turbo

Right (Passenger) Eng: L3B
8th VIN Digit: K

1 Per Vehicle

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