STM Power Steering Reservoir for Evo 8/9 (PSR)

The STM Evo 8/9 aluminum power steering reservoir is a direct replacement for the factory piece. Available brushed, wrinkle or gloss black. Includes the STM black cap, stainless hardware, hose clamps and brass drain fitting for a clean and simple install.
Vehicle Fitment:
2003-2006 Evolution VIII-IX
• Note, we have not yet confirmed fitment with JDM models as they do have a different OEM part.
Features:
• Hand Crafted
• Lightweight Aluminum Body
• Tig Welded
• Back Purged
• Stainless Hardware
• Brass Drain Fitting
• Bolts to Factory Location
• Includes Cap and O-Ring
• Replaces OEM part number MR961777
• Weighs 0.96 pounds
• STM Products are made in the USA!
• Lifetime Warranty on STM Parts to the original purchaser against manufacturing defects.
Install Notes:
• Reuse your factory, rubber bushings for mounting.
• We include 3 hose clamps so all visible clamps will match.
Includes:
(1) STM Reservoir
(1) STM Cap with O-Ring
(1) 90° 1/4″ NPT to 3/8″ Brass Barb Fitting (69945)
(3) 5/16″ Hose Clamp (62003)
(2) M8x30 Stainless Allen Bolts
(2) M8 Stainless Flat Washers
Shipping Times: 1-14 Days
Hand crafted and welded in New York, please give our fabricators time to assemble your parts!
Updated Apr 2025:
Now includes the new 3″ billet STM cap. The old style is pictured installed. We will have updated photos soon!