OE Quality
60-Day Returns

KYB 5510029 Suspension Strut - Rear Right
Overview of KYB Gas-a-just Suspension Strut 5510029
The KYB Gas-a-just suspension strut 5510029 is designed specifically for Subaru Impreza models, providing reliable shock absorption and improved vehicle handling. This strut offers precise damping control with a focus on maintaining ride comfort and stability.
- Compressed length: 19.21 inches
- Extended length: 23.77 inches
- Stroke length: 4.56 inches
- Upper mount type: S1 (12mm)
- Bump stop included (B-stop: Yes)
- No dust cover or internal rebound spring included
Features of the KYB Gas-a-just Strut
The KYB Gas-a-just line is engineered to provide consistent damping performance by using a high-pressure gas charge to reduce aeration and foaming inside the shock. This technology helps maintain stable handling characteristics and ride quality over a wide range of driving conditions. The 5510029 strut is tailored for the Subaru Impreza, ensuring proper fitment and function with its specific compressed and extended lengths and upper mount design.
Technical Details and Specifications
This suspension strut features a compressed length of 19.21 inches and an extended length of 23.77 inches, with a stroke length of 4.56 inches. The upper mount type is S1 with a 12mm diameter, which matches the mounting points on compatible Subaru Impreza models. The strut includes a bump stop (B-stop) to prevent damage from excessive suspension travel but does not come with a dust cover or internal rebound spring. These specifications ensure the strut performs reliably under normal driving conditions while maintaining the vehicle's original suspension geometry.
Applications and Problem Solving
- Restores proper suspension damping for Subaru Impreza vehicles
- Reduces excessive bouncing and improves ride stability
- Addresses uneven tire wear caused by worn shocks
- Improves vehicle control during cornering and braking
- Replaces damaged or leaking factory struts
Installation Notes and Tips
When installing the KYB Gas-a-just 5510029 strut on a Subaru Impreza, ensure the upper mount type S1 (12mm) matches the vehicle’s mounting hardware. It is recommended to replace struts in pairs to maintain balanced suspension performance. Verify the compressed and extended lengths to confirm compatibility. Professional installation is advised to ensure proper torque specifications and alignment after replacement.
Quality Assurance and Warranty
KYB is a recognized manufacturer of suspension components with a focus on durability and performance. The Gas-a-just line is designed to meet or exceed OEM specifications for the Subaru Impreza. While specific warranty details for part number 5510029 should be confirmed at the point of purchase, KYB typically offers limited warranties covering defects in materials and workmanship.
| Brand | Delphi |
|---|---|
| Part Number | TD5818W |
| Position | Gas-a-just |
| Color | Gray |
| Inside Diameter | 14.5 |
| Item Grade | Standard Replacement |
| Length | 61.0 |
| Material | Rubber-Steel |
| Outside Diameter | 48.3 |
| Position(s) | Front Lower Rearward |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2007 | Subaru | Impreza | WRX STI | Rear Right | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 2007 | Subaru | Impreza | WRX STI Limited | Rear Right | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 2006 | Subaru | Impreza | WRX STI | Rear Right | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 2005 | Subaru | Impreza | WRX STI | Rear Right | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.