A-Premium Power Steering Reservoir with Cap for Toyota & Lexus — Direct-Fit, Heat-Resistant

The A-Premium Power Steering Reservoir with Cap is a direct-fit replacement tank engineered to restore proper fluid containment and flow for compatible Toyota and Lexus models.

Replace a cracked or leaking power steering reservoir with this OEM-style A-Premium assembly designed to fit a range of Toyota and Lexus vehicles. Made from durable molded plastic and supplied with a matching cap, the unit is built to resist heat and pressure while matching original mounting points for straightforward installation. It includes multiple factory reference numbers so you can confirm compatibility with your vehicle before purchase.

Will this reservoir fit my Toyota or Lexus?

This reservoir is manufactured to fit specific Toyota and Lexus models and model years. Check your vehicle year and engine bay layout against the listed fitment to be certain it matches your application.

• Compatible with Toyota Avalon 2005–2012 and Camry 2002–2011 (excluding 2007 Camry Hybrid).
• Fits Toyota Solara 2004–2008.
• Compatible with Lexus ES300 (2002–2003), ES330 (2004–2006), and ES350 (2007–2012).
• Reference numbers included: 603-670, 603670, 4436006030 and related OEM codes for confirmation.

How does this replacement compare to the original part?

The A-Premium reservoir is manufactured to replicate the form and function of the original equipment part. It uses robust plastic that tolerates under-hood temperatures and pressure so it maintains shape and sealing performance under normal driving conditions.

• Engineered to align with original mounting points and hose connections for a trouble-free swap.
• Constructed from heat-resistant molded plastic to resist warping and cracking.
• Supplied with a matching cap to ensure proper fluid containment and venting.

How difficult is installation and what tools are required?

Installation is typically straightforward for anyone comfortable working in the engine bay; basic hand tools are usually sufficient. The design mirrors OEM attachment points, so you can often complete the replacement without modifying hoses or brackets.

• Common tools needed: socket set, pliers for hose clamps, and a screwdriver.
• Expect to drain fluid and reinstall hoses—have a catch pan and fresh power steering fluid ready.
• No special calibration or programming is required after installation.

What warranty and support come with this part?

A-Premium backs this power steering reservoir with a one-year unlimited-mileage guarantee, giving added confidence after purchase. Customer support is available for fitment questions and replacement guidance should any issues arise.

• One-year unlimited-mileage warranty from A-Premium.
• Detailed reference numbers provided to verify compatibility before ordering.
• Access to A-Premium’s broader range of automotive replacement components.

Who is this for: This A-Premium Power Steering Reservoir is aimed at DIY mechanics, independent shops, and fleet maintainers seeking a reliable, direct-replacement reservoir for select Toyota and Lexus vehicles. If your vehicle shows signs of a leaking or damaged reservoir—or you want to proactively replace an aging plastic tank—this unit offers OEM-style fitment, heat-resistant construction, and a one-year warranty to help keep your steering system functioning properly.