GM water-pump gasket in its original clear bag held by gloved hands for inspection.

GM Genuine Parts Water Pump Gasket 12657430 / ACDelco 251-2066

$7.99
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GM water-pump gasket in its original clear bag held by gloved hands for inspection.
  • GM water-pump gasket in its original clear bag held by gloved hands for inspection.
  • Packaged GM gasket held beside a laptop during part-number planning.
  • A gloved hand setting the packaged GM gasket in a clean parts tray.
  • The packaged GM gasket placed flat in a garage storage drawer.
  • Actual GM Genuine Parts water-pump gasket visible through its original bag.
GM Genuine Parts Water Pump Gasket 12657430 / ACDelco 251-2066

GM Genuine Parts Water Pump Gasket 12657430 / ACDelco 251-2066

$7.99

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Product details

Full product description

Match the right gasket for your GM water-pump repair

If your repair calls for GM part 12657430, this GM Genuine Parts water-pump gasket gives you the exact replacement number to check before ordering. It seals the mating surfaces in the water-pump assembly to help contain engine coolant. You receive one new gasket in its original GM packaging, not a water pump or a two-gasket kit.

Check fit before ordering

Match GM part 12657430, also identified as ACDelco 251-2066, to the part specified for your vehicle. Fit is vehicle-specific: confirm the year, model, engine and VIN-based application with your vehicle’s parts catalog or service professional. This is not a universal-fit gasket.

What you receive

  • One GM Genuine Parts water-pump gasket.
  • New in the original GM parts bag, with visible wrinkling and handling wear to the packaging.
  • Gasket only. Water pump, mounting bolts, sealant and tools are not included.

Part details

  • GM part number: 12657430.
  • ACDelco part number: 251-2066.
  • UPC: 808709095576.
  • Two large ports and three perimeter mounting holes.
  • Thickness: 0.019 in / 0.49 mm.
  • Country of origin on the package: USA.

Use the correct service procedure for your exact vehicle, including clean sealing surfaces and the specified fastener torque. The actual packaged-item photo is at the end of the gallery.

Safety warnings

WARNING: Plastic bags can be dangerous. To avoid danger of suffocation keep this bag away from babies and children.

WARNING: Cancer and Reproductive Harm - P65Warnings.ca.gov

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