Buy GM Genuine Parts and ACDelco Thermostat and Cap auto parts for your GM vehicle.

THERMOSTATS & CAPS

Our GM Genuine Parts Original Equipment thermostats cover a range of designs and temperature ratings to meet your needs. We also offer GM Genuine Parts Original Equipment gas/fuel caps, radiator caps, and ACDelco Original Equipment oil filler/breather caps for your replacement needs. All of our product offerings are designed, engineered, tested, and backed by GM to deliver the quality you expect.
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SHOP THE GM PARTS STORE

BUY FROM GM PARTS STORE
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White Shopping Cart Icon

SHOP THE GM PARTS STORE

BUY FROM GM PARTS STORE
Man Sitting at a Desk Checking His Phone with Blue Background
White Shopping Cart Icon

SHOP THE GM PARTS STORE

BUY FROM GM PARTS STORE
Man Sitting at a Desk Checking His Phone with Blue Background
White Shopping Cart Icon

SHOP THE GM PARTS STORE

BUY FROM GM PARTS STORE
Man Sitting at a Desk Checking His Phone with Blue Background

FIND PARTS NEAR YOU

Unavailable online or prefer to purchase in-store? Find the GM Genuine Parts and ACDelco parts you need at a GM Dealership or authorized Auto Parts Store near you.

SHOP ONLINE – ADDITIONAL AUTHORIZED RETAILERS

Find the GM Genuine Parts and ACDelco auto parts you need available for purchase at the following authorized online retailers.

Amazon

eBay

RockAuto

StockWise Auto

Summit Racing Equipment
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  • †Mail-in rebate available to retail customers with a U.S. mailing address only. Limit two per household. Allow 6 to 8 weeks for delivery of Visa® Prepaid Card. See acdelco.com or gmpartsrebates.com for details and rebate form, which must be postmarked or submitted online by 1/31/22. Offer ends 12/31/21.

  • †Retail customers with a U.S. mailing address only. Mail-in rebate valid on minimum purchase of four spark plugs and maximum of 16 spark plugs per household. Allow 6 to 8 weeks for delivery of rebate check. See gmpartsrebates.com for additional details. Rebate form must be submitted by 1/31/23. Offer ends 12/31/22.

  • †Mail-in rebate available only to Independent Service Centers, Body Shops or Commercial Fleets with a U.S. mailing address. Limit 15 rebates per part per business. Not available with some other offers. Government and municipal fleets are excluded. Allow 6 to 8 weeks from promotion end date for delivery of Visa® Prepaid Card issued in the business name. Visit mygmpartnerperks.com or gmpartsrebates.com for complete details, eligible parts and rebate form, which must be submitted by 7/15/22. Offers end 6/30/22.
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