Please check notes in each part listing to ensure the Knock (Detonation) Sensor is correct for your 2001 GMC JIMMY with a 4.3L engine. ACDELCO, AIRTEX / WELLS, STANDARD MOTOR PRODUCTS, & DELPHI are competing brands, and each brand's Knock (Detonation) Sensor may be interchangeable. Special restrictions like "California only" or "with sport package" may indicate a Knock (Detonation) Sensor fits only certain 2001 GMC JIMMY models.
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After choosing a Knock (Detonation) Sensor, click the "Add Part" button. Shipping costs will be shown on the Shopping Cart page. You may use your browser's Back button or click "Find More Parts" to find more Emission parts, other GMC JIMMY parts or parts for a different vehicle. Please try our Interactive Catalog (click link above) for faster searching. Both catalogs use the same shopping cart so any auto parts you've already chosen for your 2001 GMC will not be lost if you switch.