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Chevrolet 15840278 Transmission Mount

2007-2014 Chevrolet

Customer Questions & Expert Answers (3)
15840278 GM Transmission Mount Product Photo 1 of 3
  • Part Description
    MOUNT, Transmission Mounting
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number15840278
    Part DescriptionTransmission Mount; MOUNT, Transmission Mounting
    Item Dimensions9.8 x 8.9 x 6.6 inches
    Item Weight4.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU15840278
    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
    2011-2013, 2007-2009 Chevrolet Avalanche8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L1/2 TON
    2007-2013 Chevrolet Silverado6 Cyl 4.3L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L FlexCREW CAB 1/2 TON, EXTENDED CAB 5'8" 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
    2007-2014 Chevrolet Suburban8 Cyl 5.3L Flex, 8 Cyl 6.0L1/2 TON
    2007-2013 Chevrolet Tahoe8 Cyl 5.3L, 8 Cyl 6.0L, 8 Cyl 6.0L Flex4 DOOR 1/2 TON
  • 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 15840278 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What is the first step to remove and replace a cracked or torn Motor And Transmission Mount for the 2007 Chevrolet Tahoe? Posted by Orlando E.
    A:
    The first step is to raise the vehicle and support it securely on jackstands. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Jan 25, 2026
    Q:
    What should you do to replace the Motor And Transmission Mount for the 2013 Chevrolet Silverado? Posted by Marcelle S.
    A:
    To replace the mount, remove the fasteners attaching it to the crossmember and transmission, raise the transmission slightly with a jack, and remove the mount. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Sep 29, 2023

Genuine GM Part 15840278, the Right Choice

To ensure reliability, purchase GM part # 15840278 Transmission Mount. It is sometimes referred to as Chevrolet Motor And Transmission Mount. 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 Chevrolet Avalanche, Silverado, Tahoe models.

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