The front wipers are typically 20 inches on the driver’s side and 18 inches on the passenger’s side; the rear wiper, if your model has one, is usually about 11 inches.
Front windshield wipers: standard sizes for the 2004 Grand Cherokee
To ensure proper coverage and clearing of the windshield, the 2004 Grand Cherokee (WJ) commonly uses a longer driver-side blade paired with a slightly shorter passenger-side blade. This pairing is widely supported by aftermarket retailers and OEM diagrams for the era’s Grand Cherokee models.
- Driver-side blade: 20 inches
- Passenger-side blade: 18 inches
Note: Variations can occur due to regional production, trim packages, or aftermarket replacements. Always verify by checking the existing blades, the owner’s manual, or an OEM parts diagram for your specific VIN.
Rear windshield wiper: size and availability
Not all 2004 Grand Cherokees include a rear windshield wiper, but when present, the rear blade is typically around 11 inches in length. Some configurations or aftermarket parts may list 12 inches, but 11 inches is the common size for models that include a rear wiper.
- Rear wiper blade: about 11 inches (if equipped)
When replacing the rear blade, confirm compatibility with your tailgate’s mounting style and the exact year/model configuration, especially if your Grand Cherokee has optional or market-specific features.
How to confirm the exact size for your vehicle
If you want to be certain, use these verification steps:
- Consult the owner’s manual or the vehicle’s parts diagram
- Check the packaging on your current blades for listed sizes
- Use VIN-based parts lookups at a dealership or reputable auto parts retailer
Matching the exact size to your specific vehicle is essential, as regional variations and aftermarket options can lead to mismatches. If in doubt, a quick VIN-specific lookup will confirm the correct blade lengths.
Summary
For a 2004 Jeep Grand Cherokee, plan on a front blade pair of 20 inches (driver) and 18 inches (passenger), with an 11-inch rear blade if your model includes rear wiper functionality. Always verify with the owner's manual or a VIN-based parts search to account for any regional or trim-specific differences.


