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Chevrolet 15778434 End Gate Latch Assembly

2004 Chevrolet Trailblazer

Customer Questions & Expert Answers (3)
15778434 GM End Gate Latch Assembly Product Photo 1 of 2
  • Part Description
    Latch Assembly, End Gate ; Latch, End Gate Lock
  • Replaces
    15133751, 21998719, 15107196
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number15778434
    Part DescriptionLatch Assembly, End Gate ; Latch, End Gate Lock
    Other NamesLatch, Lock
    Item Dimensions8.1 x 5.6 x 5.4 inches
    Item Weight2.10 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces15133751, 21998719, 15107196
    ManufacturerGeneral Motors
    SKU15778434
    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
    2004 Chevrolet Trailblazer6 Cyl 4.2L, 8 Cyl 5.3L4 DOOR, 4 DOOR EXT
  • 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 15778434 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should be applied to the door latch strikers and Trunk Latch for the 2004 Chevrolet Trailblazer? Posted by Ridolfo P.
    A:
    The door latch strikers should be coated with a thin layer of grease to minimize wear and promote smooth operation. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Apr 29, 2025
    Q:
    What is the process for replacing the lock cylinder and Door Latch Assembly for the 2004 Chevrolet Trailblazer? Posted by Yuichiro M.
    A:
    Remove the outside door handle, disconnect the link, and use a screwdriver to push the key lock cylinder retainer off before withdrawing the lock cylinder from the door handle. Installation is again the reverse of removal. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Aug 31, 2025

Genuine GM Part 15778434, the Right Choice

To ensure reliability, purchase GM part # 15778434 End Gate Latch Assembly. It is sometimes referred to as Chevrolet Door Lock, Chevrolet Door Lock Actuator, Chevrolet Tailgate Latch, Chevrolet Tailgate Lock, Chevrolet Trunk Latch, Chevrolet Door Latch Assembly. 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 Trailblazer models.

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