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Chevrolet 15878845 Motor Mount

2007-2013 Chevrolet Silverado

Customer Questions & Expert Answers (3)
15878845 GM Motor Mount Illustration 1 of 1
  • Part Description
    Mount Assembly - Engine
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number15878845
    Part DescriptionMotor Mount; Mount Assembly - Engine
    Item Dimensions8.0 x 7.4 x 7.3 inches
    Item Weight6.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU15878845
    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
    2007-2013 Chevrolet Silverado8 Cyl 5.3L Flex, 8 Cyl 6.0L, 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
  • 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 15878845 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How can you determine if the Motor And Transmission Mount needs to be replaced for the 2011 Chevrolet Silverado? Posted by Grayson P.
    A:
    Insert a large screwdriver or prybar into the space between the transmission extension housing and the crossmember and try to pry the transmission up slightly. If the transmission moves significantly, the mount needs to be replaced. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Feb 21, 2026
    Q:
    What should be done if Engine Mounts are broken or deteriorated for the 2007 Chevrolet Silverado for the 2007 Chevrolet Silverado? Posted by Dimas P.
    A:
    They should be replaced immediately to prevent added strain on the driveline components, which could cause damage. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Jan 26, 2025

Genuine GM Part 15878845, the Right Choice

To ensure reliability, purchase GM part # 15878845 Motor Mount. It is sometimes referred to as Chevrolet Engine Mount, 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 Silverado models.

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