The typical replacement setup for the Lexus RX400h is front: 26 inches on the driver's side and 21 inches on the passenger's side, with a 12-inch rear blade. This configuration fits most 2005–2009 RX400h models, but exact sizes can vary by year or trim, so always verify against your vehicle’s manual or the blade you remove.
In this article, we outline the standard sizes used on RX400h front and rear wipers, explain how to confirm the exact dimensions for your specific year, and offer practical tips for replacing blades across common RX400h model years.
Front wiper blades
Below are the front blade sizes typically used on RX400h models. The two blades on the windshield are designed to fit the driver and passenger sides, which is why two different lengths are common.
- Driver-side blade: 26 inches
- Passenger-side blade: 21 inches
Concluding: The standard front-wiper pairing for most RX400h vehicles is 26 inches on the driver side and 21 inches on the passenger side. If yours differs, check the blade you are replacing or consult the owner's manual for your year.
Rear wiper blade
The RX400h uses a single rear wiper blade mounted on the tailgate. The typical replacement size is around 12 inches, though some years or trims may vary slightly.
- Rear blade: 12 inches
Concluding: For the rear window, a 12-inch replacement blade is the standard starting point for most RX400h models. Verify if your year requires a different size by consulting the manual or measuring the existing blade.
How to confirm your exact size
Year-by-year differences
While 26"/21" front and 12" rear cover the majority of RX400h vehicles, there were minor variations across model years. Always confirm by one of these methods:
- Check the owner’s manual for the exact blade sizes.
- Remove the current blades and measure their length, or bring the blade to a parts retailer to match.
Summary
For the Lexus RX400h, the commonly used replacement sizes are front blades of 26 inches (driver) and 21 inches (passenger), plus a 12-inch rear blade. Verify these measurements against your specific year and trim to ensure a proper fit.