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GMC 19131986 Heater Core

1982-1994 GMC

Customer Questions & Expert Answers (2)
19131986 GM Heater Core
  • Part Description
    CORE, Heater Core
  • Replaces
    03050142, 52479878, 3050142
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number19131986
    Part DescriptionCORE, Heater Core
    Other NamesCore, Heater Core
    Item Dimensions16.0 x 12.1 x 8.5 inches
    Item Weight6.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces03050142, 52479878, 3050142
    ManufacturerGeneral Motors
    SKU19131986
    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
    1992-1994 GMC Jimmy6 Cyl 4.3L2 DOOR, 4 DOOR
    1982-1991 GMC S154 Cyl 1.9L, 4 Cyl 2.0L, 4 Cyl 2.2L Diesel, 4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 4.3L2 DOOR, 4 DOOR, PICKUP
    1991-1993 GMC Sonoma4 Cyl 2.5L, 6 Cyl 2.8L, 6 Cyl 4.3LPICKUP
    1991 GMC Syclone6 Cyl 4.3LPICKUP
    1992-1993 GMC Typhoon6 Cyl 4.3L2 DOOR, 4 DOOR
  • 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 19131986 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should you do after draining the cooling system and checking the Heater Core of the 1994 Chevrolet S10? Posted by Melinda A.
    A:
    Disconnect the heater hoses at the engine side of the firewall and plug the open fittings. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Oct 13, 2025

Genuine GM Part 19131986, the Right Choice

To ensure reliability, purchase GM part # 19131986 Heater Core. It is sometimes referred to as GMC Heater Core. 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 Jimmy, S15, Sonoma models.

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