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GMC 12623730 Knock Sensor

2005-2020 GMC

Customer Questions & Expert Answers (4)
12623730 GM Knock Sensor Product Photo 1 of 6
  • Part Description
    Sensor, Distributor
  • Replaced By
    12739206
  • Replaces
    12570125
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number12623730
    Part DescriptionKnock Sensor; Sensor, Distributor
    Item Dimensions2.7 x 2.5 x 1.2 inches
    Item Weight0.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12570125
    ManufacturerGeneral Motors
    SKU12623730
    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
    2007-2012 GMC Canyon4 Cyl 2.9L, 5 Cyl 3.7L, 8 Cyl 5.3LPICKUP, PICKUP CREW CAB, PICKUP EXTENDED CAB, PICKUP EXTENDED LENGTH
    2005-2009 GMC Envoy6 Cyl 4.2L, 8 Cyl 5.3L4 DOOR, 4 Door XL, 4 DOOR XUV
    2008-2020 GMC Savana8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex1 TON CARGO EXPRESS, 1 TON CARGO SAVANA, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA, 3/4 TON CARGO EXPRESS, 3/4 TON CARGO SAVANA, 3/4 TON PASSENGER EXPRESS, 3/4 TON PASSENGER SAVANA
    2007-2019 GMC Sierra8 Cyl 4.8L, 8 Cyl 4.8L Flex, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex1 TON CREW CAB, 2500 CREW CAB STANDARD BOX, 2500 REGULAR CAB, 2500 REGULAR CAB STANDARD BOX, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 1 TON 119.0, CREW CAB 1 TON 137.0, CREW CAB 1/2 TON, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 1/2 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, EXTENDED CREW CAB 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5
    2007-2014 GMC Yukon8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex1/2 TON, 3/4 TON, XL 3/4 TON, YUKON XL/DENALI XL/ESCALADE ESV, YUKON/DENALI/ESCALADE
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12623730 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How to remove a Knock Sensor on GMC Yukon? Posted by Dominick J.
    A:
    To remove the knock sensor on a vehicle, loosen the front wheel lug nuts and raise the front of the vehicle on jack stands. Remove the wheel and the knock sensor heat shield retaining bolt. Disconnect the electrical connector and remove the retaining bolt to take out the knock sensor. The installation is the reverse of the removal steps.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / May 02, 2026
    Q:
    How many knock sensors does a 2009 Yukon have? Posted by Josh M.
    A:
    The 2009 GMC Yukon has 2 knock sensors, one one each side of the block.
    Answered by GM Parts Specialist Matt / Mar 21, 2021
    Q:
    My check engine light recently came and they said it was my Knock Sensor 1 ...i was try to see if ya'll had it in stock Posted by Brittney L. / 2008 Chevrolet Impala
    A:
    Looks like 12623730 is the part number for both knock sensors per VIN
    Answered by GM Parts Specialist Ed / Aug 13, 2019

Genuine GM Part 12623730, the Right Choice

To ensure reliability, purchase GM part # 12623730 Knock Sensor. It is sometimes referred to as GMC Knock Sensor. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific GMC Savana, Sierra, Yukon models.

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