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Genuine GM 12666591
Serpentine Idler Pulley

Customer Questions & Expert Answers (3)
GM 12666591 Serpentine Idler Pulley
  • Part Description
    Pulley Assembly-Belt Idler
  • Brand
    GM
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$27.31 MSRP: $51.53
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  • Related Parts
  • Product Specifications
  • Vehicle Fitment
  • Customer Questions & Expert Answers

  • 12666591 Serpentine Idler Pulley is Ref No. 4 in the diagram below

    2022 Cadillac CT4 Belts & Pulleys Serpentine Idler Pulley Diagram for 12666591
    The diagram listed above is for your reference. View diagram and OE catalog for your vehicle

    Related Parts for 12666591

  • Product Specifications

    BrandGenuine General Motors
    Manufacturer Part Number12666591
    Part DescriptionPulley Assembly-Belt Idler
    Other DescriptionSerpentine Idler Pulley
    Other NamesIdler Pulley, Serpentine Idler Pulley
    Item Dimensions5.0 x 4.5 x 4.3 inches
    Item Weight0.70 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12666591
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65

  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2020-2024 Cadillac CT44 Cyl 2.7LLUXURY SEDAN, V-SERIES SPORT SEDAN
    2019-2020 Cadillac CT68 Cyl 4.2L4 DOOR SEDAN, PLATINUM 4 DOOR SEDAN, V-SPORT 4 DOOR SEDAN
    2023-2024 Chevrolet Colorado4 Cyl 2.7LCREW CAB - 5'2" BOX, LS CREW CAB - 5'2" BOX, LS CREW CAB-5'2" BOX(I), LT CREW CAB - 5'2" BOX, LT CREW CAB-5'2" BOX(I), LTZ CREW CAB-5'2" BOX, SPORT CREW-5'2" BOX(NA)
    2019-2024 Chevrolet Silverado4 Cyl 2.7LCREW 5'8" BOX 1/2 TON, CREW 5'8" BOX 1/2 TON(VIN REQ'D), CREW CAB 5'8" BOX 1/2 TON, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2023-2024 GMC Canyon4 Cyl 2.7LCREW CAB - 5'2" BOX, CREW CAB SLE -5'2" BOX, CRW CAB SPORT-5'2" BOX(I), SLT CREW CAB - 5'2" BOX, SPORT CREW-5'2" BOX
    2019-2024 GMC Sierra4 Cyl 2.7LCREW CAB 5'8" 1/2 TON, CREW CAB 5'8" BOX 1/2 TON, Crew Cab 6'6" Box 1/2 Ton, CREW CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON

  • Customer Questions & Expert Answers

    Q:
    Could you please tell me if the part fits my car?
    By Customer
    A:
    Please Select Your Car to check if 12666591 properly fits your car.
    By Omar
    GM Specialist
    Q:
    I really need to know the exact position of the part.
    By Customer
    A:
    Our part is on Passenger Side.
    By Omar
    GM Specialist
    Q:
    I wonder if this part works for my car with the 2.7 Liter Turbo.
    By Customer
    A:
    This part works well with your car and your 2.7 Liter Turbo.
    By Omar
    GM Specialist
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!

OEM GM 12666591 at AutoPartsPrime, Your Right Choice

  • The part number 12666591, Serpentine Idler Pulley, is designed to fit specific GM vehicles. Here, we provide you with parts specifications and vehicle fitment information for your convenience. This part fits specific Cadillac CT4, CT6. It fits Chevrolet Colorado, Silverado. It also fits GMC Canyon, Sierra. All OEM GM parts are manufactured by GM and guaranteed by GM's factory warranty. You can find diagrams here for your parts lookup.
  • AutoPartsPrime is a fast-growing online store, and the online catalog we carry covers all your genuine automotive needs. From engine parts to body parts, we have a huge selection of GM parts. If you have friends who also own GM vehicles, don't forget to refer them to AutoPartsPrime. Also, if you have any questions or hesitation, let us help you.

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