HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsDorman 603-164 Power Steering Reservoir
Part #: 603-164

Dorman 603-164 Power Steering Reservoir

13 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$47.19Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Subaru, Baja, Legacy, and Outback
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Dorman 603-164 Power Steering Reservoir

This Dorman power steering reservoir is a direct replacement for select Subaru applications, including Legacy, Outback, and Baja models. Built from plastic with a clear/black finish, it is made to handle underhood heat and engine vibration while maintaining proper fluid storage for the steering system.

Key Features

  • Replacement power steering fluid reservoir for select Subaru vehicles
  • Plastic construction with clear/black natural finish
  • Includes reservoir cap
  • Thoroughly tested for fit on specific vehicle applications
  • Part number 603-164 for easy identification

Detailed Description

Dorman 603-164 is a power steering reservoir engineered as a replacement for vehicles that need a dependable fluid container in the steering system. The reservoir is manufactured from quality materials to withstand heat cycling and engine vibration in the engine bay. Its compact dimensions and application-specific design support proper fitment on 2000-2004 Subaru Legacy, 2000-2004 Subaru Outback, and 2004-2006 Subaru Baja models. This part cross-references Cardone New 3R-363 for the same application.

For buyers searching for a Subaru Legacy power steering reservoir replacement, Subaru Outback power steering reservoir, or Subaru Baja steering fluid reservoir, Dorman 603-164 provides a direct-fit solution for the listed vehicles. The reservoir cap is included, and the unit is intended for power steering use only.

What It Helps Solve

  • Cracked or leaking power steering reservoir housing
  • Fluid loss caused by aged plastic components
  • Reservoir damage from heat and vibration exposure
  • Fitment issues from using the wrong steering fluid container
  • Need for a replacement reservoir on Subaru Legacy, Outback, or Baja models

Installation Notes and Tips

Verify the reservoir shape, mounting points, and hose connection layout against the original part before installation. Confirm the cap is seated correctly and inspect connected hoses and clamps for wear while servicing the steering system. This part does not include mounting hardware, mounting brackets, or fittings.

Quality Assurance

Dorman tests this replacement reservoir for fit on specific vehicle applications and uses materials selected to withstand underhood operating conditions. Part number 603-164 is built as a performance-grade replacement for the listed Subaru fitments.

Compatible Vehicles

  • Fits 2004-2006 Subaru Baja, N/A
  • Fits 2000-2004 Subaru Legacy, N/A
  • Fits 2000-2004 Subaru Outback, N/A
BrandDorman
Part Number603-164
MaterialPlastic
MaterialPlástico
Length5.5
ColorClear/black
ColorTransparente/negro
FinishNatural
Width4.5
Mounting Hardware IncludedNo
Mounting Hardware IncludedNon
Grade TypePerformance
Grade TypeRendimiento
Mounting Bracket IncludedNo
Mounting Bracket IncludedNon
Fittings IncludedNo
Fittings IncludedNon
Cap IncludedOui
Cap Included
Cap IncludedYes
Remote MountedNo
Remote MountedNon
Contenidos del paquete1 depósito de dirección asistida
Contenidos del paquete1 tapa
Installation Hardware IncludedNo
Installation Hardware IncludedNon
Package Contents1 cap
Package Contents1 power steering reservoir
Reservoir Cap IncludedOui
Reservoir Cap Included
Reservoir Cap IncludedYes
Reservoir TypeDirecciÓn asistida

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006SubaruBaja2.5LH4N/A
2005SubaruBaja2.5LH4N/A
2004SubaruBaja2.5LH4N/A
2004SubaruLegacy2.5LH4N/A
2004SubaruOutback2.5LH4N/A
2003SubaruLegacy2.5LH4N/A
2003SubaruOutback2.5LH4N/A
2002SubaruLegacy2.5LH4N/A
2002SubaruOutback2.5LH4N/A
2001SubaruLegacy2.5LH4N/A
2001SubaruOutback2.5LH4N/A
2000SubaruLegacy2.5LH4N/A
2000SubaruOutback2.5LH4N/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:

34630AE02A34630AE02B3R-363

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