HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 603-723 Power Steering Reservoir
Part #: 603-723

Dorman 603-723 Power Steering Reservoir

⚙️ 6 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Sienna
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Power Steering Reservoir for Toyota Sienna

The Dorman 603-723 power steering reservoir is designed specifically for Toyota Sienna models, providing a reliable solution for your vehicle's power steering fluid storage needs. Constructed from durable plastic with a matte finish, this remote-mounted reservoir ensures consistent performance and longevity.

Key Features of Dorman 603-723 Power Steering Reservoir

  • Made from high-quality plastic material for durability
  • Matte finish reduces glare and resists wear
  • Available in black, blue, and white color options
  • Includes mounting bracket for secure installation
  • Comes with a reservoir cap to maintain fluid integrity
  • Remote mounted design for flexible placement in engine bay
  • Single reservoir type suitable for standard power steering systems

Detailed Product Description

The Dorman 603-723 power steering reservoir is engineered to meet the specifications of Toyota Sienna vehicles, ensuring proper fit and function. Its plastic construction offers resistance to corrosion and chemical damage from power steering fluid. The matte finish helps minimize surface reflections, which can be beneficial during engine inspections. This reservoir is remote mounted, allowing for easier access and installation in the engine compartment. The included mounting bracket provides a secure and stable attachment point, while the reservoir cap helps prevent contamination and fluid leakage. Available in multiple colors including black, blue, and white, this reservoir can match or complement your vehicle’s engine bay aesthetics.

Common Applications and Issues Addressed

  • Replacement for cracked or leaking power steering reservoirs on Toyota Sienna
  • Solves fluid contamination issues caused by damaged or missing caps
  • Addresses power steering fluid loss due to reservoir damage
  • Helps restore proper fluid levels and pressure in the power steering system
  • Prevents overheating and premature wear of power steering components

Installation Notes and Tips

When installing the Dorman 603-723 power steering reservoir, ensure the mounting bracket is securely fastened to avoid vibrations. Since installation hardware is not included, use existing or appropriate fasteners compatible with your Toyota Sienna. Verify that the reservoir cap is properly sealed after filling with the recommended power steering fluid. Check for leaks after installation and during initial operation to confirm a proper fit and seal.

Quality Assurance and Warranty

Dorman power steering reservoirs are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 603-723 are not provided here, Dorman typically offers limited warranties covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.

BrandDorman
Part Number603-723
MaterialPlastic
ColorAnd white
ColorBlack
ColorBlue
FinishMatte
Mounting Hardware IncludedNo
Mounting Bracket IncludedYes
Fittings IncludedNo
Remote MountedYes
Installation Hardware IncludedNo
Package Contents1 power steering reservoir; 1 cap
Reservoir Cap IncludedYes
Reservoir TypeSingle

This part fits 6 vehicles. Search below:

YearMakeModelPositionNotes
2009ToyotaSiennaN/A
2008ToyotaSiennaN/A
2007ToyotaSiennaN/A
2006ToyotaSiennaN/A
2005ToyotaSiennaN/A
2004ToyotaSiennaN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

3R-1234430506050

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.