KYB
Gas-a-just

KYB 5510031 Suspension Strut - Rear Right

Brand KYB UC-12
Attachment Method Clamp
Coil Type Electronic
Color Black
Color/Finish Black
Connector Gender Female
Connector Shape Wire Lead
Contents Ignition Coil
Ignition Type Oil Filled
Mounting Bracket(s) Included No
Mounting Location External
Oil Filled Yes
Terminal Gender Female
Terminal Type Stud
Voltage 12
Product line Gas-a-just
Fits —1 vehicle

OE monotube replacement. Restores original control and handling.

Monotube design. Separates gas and oil for fade-free response.

Triple chrome piston rod. Helps reduce seal wear for smoother operation.

Cross-references Subaru 20360FE701 and Subaru 20360FE840 for the same application. See all 2.

$191.34Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Suspension Struts are typically replaced in pairs, axle by axle.
Order total $191.34
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

KYB Gas-a-just Rear Right Strut for Subaru Impreza

The KYB Gas-a-just 5510031 is a monotube suspension strut built as an OE-style replacement for the rear right position on the 2004 Subaru Impreza. It is engineered to restore original handling response, steering feel, and suspension control for drivers who want a direct replacement for the factory unit.

Key Features

  • Monotube OE replacement strut for the rear right suspension position
  • High-pressure gas and oil chambers are separated for consistent response and fade-resistant operation
  • Triple chrome plated piston rod helps reduce seal wear and fluid leakage
  • Higher gas pressure supports quicker steering response and control
  • Designed to help maintain the performance of vehicle safety systems that rely on suspension behavior
  • Compressed length: 18.66 in; extended length: 23.77 in; stroke length: 5.11 in
  • Upper mount type: S1 (12MM); B-stop included

Product Details

KYB Gas-a-just struts use a two-chamber monotube design with an air-free hydraulic working area and a separate high-pressure nitrogen gas section. That layout supports responsive damping during normal driving while providing firmer control when suspension demand increases. For the 2004 Subaru Impreza, this KYB Gas-a-just strut helps restore the designed ride and handling balance at the rear right corner. Part number 5510031 is also referenced for OE-style replacement applications where the original monotube strut design is required.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Can Help Address

  • Excessive bouncing or poor rebound control at the rear suspension
  • Fluid leakage from a worn or failing strut
  • Reduced steering response and loose handling feel
  • Uneven ride quality caused by a weakened suspension damper
  • Suspension performance issues that can affect braking and stability system behavior

Installation Notes

Fits 2004 Subaru Impreza, rear right. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify upper mount type, compressed length, and extended length before installation. This KYB Gas-a-just 5510031 is intended for the rear right position only on the listed application.

Quality Assurance

KYB is an established OE suspension supplier, and the Gas-a-just line is built as a monotube replacement to match factory-style suspension requirements. The design focuses on consistent damping, reduced seal wear, and dependable control for the Subaru Impreza application.

This part fits 1 vehicle
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2004SubaruImprezaWRX STIRear RightReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Subaru — 20360FE701Subaru — 20360FE840