Please check notes in each part listing to ensure the Main Shaft Seal is correct for your 2010 HUMMER H3 with a 3.7L DOHC engine. Special restrictions like "California only" or "with sport package" may indicate a Main Shaft Seal fits only certain 2010 HUMMER H3 models.
Clicking a "More Info" link will display a picture and/or other details about that Main Shaft Seal in a separate window (you may need to turn off your pop-up-blocking software for this to work).
After choosing a Main Shaft Seal, 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 Transmission-Manual parts, other HUMMER H3 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 2010 HUMMER will not be lost if you switch.
