Typically, the Hummer H3 uses a 22-inch driver-side and a 21-inch passenger-side front wiper, plus an 11-inch rear wiper blade. Exact sizes can vary by year and trim, so verify with the owner's manual or a parts lookup for your specific VIN.
Front Wipers: Typical Driver and Passenger Sizes
The front blades on most H3 models come in two different lengths to cover the swept area efficiently. Starting points widely cited by owners and parts catalogs are the following lengths.
- Driver’s side: 22 inches
- Passenger’s side: 21 inches
In a few production runs, some models used 22 inches on both front blades. Always confirm for your year.
Rear Wiper: Size and Considerations
H3 variants that include a rear wiper use a smaller blade, typically around 11 inches, though some years used 10–12 inches depending on manufacture.
- Rear wiper blade: about 11 inches
Check your exact year and region if you want an exact aftermarket replacement to avoid mismatches.
How to Confirm the Right Size for Your H3
Because sizes can vary by year, trim and region, use a verification method before purchasing replacements.
- Consult the owner's manual or the glovebox sticker for the recommended blade sizes.
- Use the vehicle's year, make, model, and trim in an OEM parts catalog or a trusted retailer’s lookup tool to confirm the precise sizes.
- Measure the current blades if you’re unsure, noting the driver and passenger side lengths.
- Check the blade connector type (hook, pin, or adaptor) to ensure compatibility with your wiper arms.
- If you’re unsure, bring your blade to an auto parts store for a physical comparison.
Concluding: Verifying through official catalogs and a careful physical check minimizes the risk of buying the wrong blades.
Summary
For most H3 models, plan for a 22-inch driver-side front blade and a 21-inch passenger-side front blade, with an 11-inch rear blade if your vehicle is equipped with one. Always confirm exact sizes using your VIN, owner's manual, or an official parts catalog to ensure a precise match, then replace blades in pairs when possible for even wear and maximum visibility.