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PRODUCT OVERVIEW
The KYB Gas-A-Just shock absorber 5510021 is a high-pressure gas monotube shock designed to improve stability, handling and overall ride control compared to standard hydraulic units. It is engineered for reliable performance and consistent damping under demanding driving conditions.
KEY FEATURES
- Gas-A-Just high-pressure gas monotube design for enhanced response
- Improved stability, handling and braking performance
- Reduces body roll, nose dive and squat under acceleration
- Consistent damping performance with reduced fade
- Direct replacement part number: 5510021
- Durable construction for long service life
BENEFITS
- Sharper steering response and improved road control
- More confident, predictable handling under load
- Enhanced comfort with controlled suspension movement
- Supports even tyre wear by maintaining better contact with the road
APPLICATION NOTES
Part Number: 5510021
Brand: KYB
Series: Gas-A-Just
This shock absorber is designed as a direct replacement for the specified part number. Check your existing part number and vehicle compatibility before purchase. Refer to the vehicle fitment guide or consult a qualified technician if you are unsure.
INSTALLATION RECOMMENDATIONS
- Professional installation is recommended for safety and optimal performance
- Always replace shocks in axle pairs (left and right) where applicable
- Ensure all mounting hardware is inspected and replaced if worn or damaged
- Perform a wheel alignment check after suspension work where required
COMPATIBILITY NOTICE
Vehicle fitment can vary by year, body style, engine and drivetrain. Use a detailed compatibility tool or verify with your vehicle identification details to ensure this KYB Gas-A-Just 5510021 shock absorber is correct for your application.
Vehicle Compatibility
| Make | Model | Year | Submodel | Variant | Engine | Notes |
|---|---|---|---|---|---|---|
| Subaru | WRX | 2022 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2021 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2020 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2019 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2018 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2017 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2016 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2015 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2014 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) | |
| Subaru | WRX | 2013 | VA Sedan STi 2.5 AWD (VAF, VAG) | AWD Petrol 2.5L 4cyl 221kW EJ257 | 2457cc 221kW (Petrol) |