Dorman OE Solutions Power Steering Reservoir for 2004-2008 Lexus RX330 RX350 603-673

Power steering reservoir for 2004-2008 Lexus RX330 and RX350 used to replace leaking or cracked factory fluid tanks.

Built to meet the manufacturer's design intent for reliable service, this replacement unit is constructed from quality materials engineered to withstand underhood heat and engine vibration. Each part undergoes rigorous on-vehicle testing to ensure optimum fit and long service life for your specific application.

Key Features

• Direct replacement for original equipment power steering reservoir
• Constructed from durable materials resistant to heat and vibration
• Undergoes on-vehicle testing to verify quality fit
• Designed to match OE form, fit, and function
• Part number 603-673 by Dorman OE Solutions

Benefits

• Restores proper power steering fluid capacity and system pressure
• Eliminates leaks caused by cracked or damaged factory reservoirs
• Reduces the risk of repeat repairs with validated durability
• Ensures smoother installation with precise vehicle-specific engineering
• Helps maintain safe steering performance during daily driving

Application

Ideal for owners of Lexus RX330 and RX350 models experiencing power steering fluid leaks, low fluid levels, or visible cracks in the original reservoir. This part serves as a reliable fix for routine maintenance or failure replacement.

Fitment Notes

• Compatible with 2004-2006 Lexus RX330
• Compatible with 2007-2008 Lexus RX350
• Replaces Toyota OEM numbers including 443600E010 and 4430528061

Why Choose Dorman - OE Solutions?

• Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function.
• Built with quality materials and validated through testing to stand up to daily driving demands.
• Offers a smart way to restore your vehicle with confidence in fit, durability, and dependable performance.

What's in the Box

• 1 Power Steering Reservoir

Item Dimensions

• 7.3in x 6.3in x 6.7in
• Weight: 1.2lbs