The front wipers are typically 26 inches on the driver’s side and 18 inches on the passenger side, with a 12-inch blade for the rear window.
The 2018 Lexus RX 350 uses a split-front wiper setup and a single rear blade. Sizes are widely used by OEM parts and aftermarket replacements, but it’s always best to confirm with the vehicle’s manual or a trusted parts catalog for your exact trim and regional variations.
Front wiper blade sizes
These are the standard front wiper blade lengths you’ll commonly need for the 2018 RX 350:
- Driver-side: 26 inches
- Passenger-side: 18 inches
Having the correct front blade sizes ensures full coverage and effective wiping at typical driving speeds. If you replace with aftermarket blades, verify the connector type and arm compatibility for a snug fit.
Rear wiper blade size
The rear wiper on the 2018 RX 350 uses a single blade, commonly listed at 12 inches.
- Rear: 12 inches
Rear blades are typically simpler to replace and often sold as a single-size package. Always double-check the exact model year and regional variant to confirm the fitment.
Buying tips and fitment notes
When shopping for wiper blades, consider blade type (conventional, beam, or hybrid), climate, and driving conditions. Ensure you order the two front blades in the correct lengths (26" and 18") and the rear blade in 12". If you’re unsure, use a retailer’s fit guide by entering your vehicle year, make, and model, or consult the Lexus owner’s manual.
How to verify fitment
Always confirm with the retailer’s compatibility tool or contact a dealership if you have any doubt about your specific trim or regional variation. You can also measure the current blade lengths on the vehicle: measure from the blade’s mounting end to the tip for each side.
Summary
For a 2018 Lexus RX 350, plan on 26 inches for the driver-side front blade, 18 inches for the passenger-side front blade, and 12 inches for the rear blade. Use this as a baseline, but verify against your owner’s manual or a trusted parts catalog to account for any year- or region-specific differences. Properly sized blades ensure clear visibility and safer driving in all conditions.