2004 Hummer H2 Engine Parts

Our catalog currently lists 77 engine parts for the 2004 Hummer H2 across 1 subcategory and 2 brands, covering the 6.0L V8 engine. Each part is matched to the engine(s) it fits.

Common symptoms include oil spots under the vehicle, blue or white exhaust smoke, ticking from the valvetrain, or coolant mysteriously disappearing. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.

Where labor overlaps, replace the seals and gaskets for anything you open up; a timing job should always include the tensioner and guides, not just the belt or chain.

They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2004 Hummer H2 was originally sold in the US, the safest choice is a part marked for the US market.

Every part on this page is matched to the 6.0L V8 engine. Then engine hard parts are unforgiving of guesswork — confirm the casting or engine code before ordering, because one model year can hide two different blocks. The notes column carries position and trim qualifiers where they apply.