Shop Hummer H2 by category
Parts that fit your Hummer H2, by department.
Drivetrain & Transmission85 parts
Engine Parts70 parts
Suspension & Steering24 parts
Exhaust Systems17 parts
Tools & Equipment12 parts
Off-Road Accessories9 parts
Interior Accessories7 parts
Performance Parts3 parts
Car Accessories2 parts
Brakes2 parts
Fuel System1 part
Electrical Parts1 part
Body Parts & Exterior1 part
Hummer H2
Parts fit 2003 to 2009. Owner reports cover 1996 to 2025, mapped to 1 NHTSA name, so vehicles of very different ages are counted together.
20 of 234 parts name an engine. The other 134 fit any, so choosing one here only narrows those 20.
What owners report
6 of 12 components, the largest by share, together 64.5% of all mentions. 316 reports filed with NHTSA from 1996 to 2025, read through 4 name and year queries against 1 source name. A report can name more than one component, so these 316 reports carry 424 mentions, 1.34 for each report, and every share below is of those 424. 8 more mentions were filed as unknown or other and are excluded from both the rows and the total.
What we can sell for it
234 parts from 33 brands fit this vehicle across 13 categories, and parts listed here fit model years 2003 to 2009. Drivetrain & Transmission is the deepest at 85 parts from 3 brands. 4 of the 6 components above map to a category we stock, and the other 2 map to none.
Where the two lists meet
Each row pairs a reported component with the shelf that answers it, deepest complaint first.
Electrical System is the largest single complaint on this vehicle at 17.7%, matched by 1 part from 9 brands.
What the complaints table says
NHTSA, the federal agency that logs owner-submitted safety complaints, is where these figures originate.
The H2 has 316 complaints on record, totaling 424 mentions.
Electrical System and Visibility are nearly tied at the top, 17.7% and 17.5%.
Service Brakes follows at 11.6%, then Steering at 8.0%.
Hydraulic and Power Train close out the list at 5.0% and 4.7% - treat a share as a measure of how often owners spoke up about a part, not a prediction for this H2.
What the parts table says
Drivetrain & Transmission is the deepest shelf here, 85 parts across 3 brands, right where Power Train complaints point.
Suspension & Steering adds 24 parts, and Brakes another 2, both matching rows on the left.
Engine Parts and Exhaust Systems sit outside anything owners reported, at 70 and 17 parts.
Electrical System leads every complaint at 17.7%, and Electrical Parts lists 1 part.
More Hummer vehicles we cover
Every Hummer we build a fitment guide for. Pick another model to see the parts that fit it.