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GM 12491038 Water Pump

1987-1993 GM

Customer Questions & Expert Answers (3)
12491038 GM Water Pump Product Photo 1 of 1
  • Part Description
    Pump Kit, Engine Coolant
  • Replaces
    12458920, 10181327
  • Manufacturer
    General Motors
Make sure this part fits
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number12491038
    Part DescriptionWater Pump; Pump Kit, Engine Coolant
    Item Dimensions9.6 x 6.8 x 6.2 inches
    Item Weight6.80 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12458920, 10181327
    ManufacturerGeneral Motors
    SKU12491038
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    1990 Chevrolet Astro4 Cyl 2.5LVAN ASTRO
    1987-1993 Chevrolet S104 Cyl 2.5L2 DOOR, 4 DOOR, PICKUP
    1992-1993 GMC Jimmy2 DOOR, 4 DOOR
    1987-1990 GMC S154 Cyl 2.5L2 DOOR, PICKUP
    1990 GMC Safari4 Cyl 2.5LVAN SAFARI
    1991-1993 GMC Sonoma4 Cyl 2.5LPICKUP
    1992-1993 Oldsmobile BravadaBRAVADA
  • 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 12491038 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How do you start the process of removing the Water Pump of the 1990 Chevrolet Astro? Posted by Harrison M.
    A:
    Start by disconnecting the cable from the negative terminal of the battery. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Julian / Feb 06, 2023
    Q:
    What can happen if the Water Pump fails of the 1990 Chevrolet Astro? Posted by Kenyatta M.
    A:
    Engine overheating and serious damage can occur. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Jun 02, 2025

Genuine GM Part 12491038, the Right Choice

To ensure reliability, purchase GM part # 12491038 Water Pump. It is sometimes referred to as GM Water Pump. 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 Astro, S10 models. It fits GMC S15, Safari, Sonoma. It also fits Oldsmobile Bravada.

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