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KYB KG9004 Suspension Strut - Rear
Overview of KYB Gas-a-just Suspension Strut KG9004
The KYB Gas-a-just suspension strut KG9004 is engineered for precise fitment on BMW 320i models. Designed to restore original handling and ride quality, this strut offers reliable performance with key features tailored to suspension needs.
- Compressed length: 14.21 inches
- Extended length: 21.57 inches
- Stroke length: 7.36 inches
- Lower mount type: E2(10x45)
- Upper mount type: S1
- Includes dust cover for protection
- Equipped with B-stop and R-stop bumpers
- No internal rebound spring
Detailed Product Features and Specifications
The KYB Gas-a-just KG9004 suspension strut is designed with a compressed length of 14.21 inches and an extended length of 21.57 inches, providing a stroke length of 7.36 inches. This ensures smooth suspension travel and consistent damping performance. The lower mount uses an E2(10x45) type, while the upper mount is an S1 type, matching the original equipment specifications for the BMW 320i. The inclusion of a dust cover helps protect the strut shaft from debris and contaminants, extending the service life of the component. Additionally, the strut features both B-stop and R-stop bumpers to prevent over-compression and over-extension, safeguarding the suspension system during operation. Notably, this model does not include an internal rebound spring, which aligns with the design requirements for this vehicle application.
About the KYB Gas-a-just Product Line
The Gas-a-just line from KYB focuses on gas-charged struts that provide consistent damping and improved ride control. This product line is engineered to meet or exceed original equipment standards, offering a balance of comfort and handling. The KG9004 strut is part of this line, delivering reliable performance specifically calibrated for the BMW 320i suspension system.
Common Applications and Problem Solving
- Restores factory ride height and suspension travel on BMW 320i
- Reduces excessive body roll and improves handling stability
- Eliminates noise and vibration caused by worn or damaged struts
- Prevents suspension bottoming out with integrated bump stops
- Protects suspension components from premature wear due to dust and debris
Installation Notes and Tips
When installing the KYB Gas-a-just KG9004 suspension strut, ensure compatibility with BMW 320i models by verifying mount types and dimensions. Use proper tools to avoid damage to the dust cover and mounting points. It is recommended to replace struts in pairs to maintain balanced suspension performance. After installation, a professional wheel alignment is advised to optimize handling and tire wear.
Quality Assurance and Warranty
KYB manufactures the Gas-a-just KG9004 strut to meet strict quality standards, ensuring durability and consistent performance. This part is backed by KYB's limited warranty, covering defects in materials and workmanship under normal use. Refer to KYB's official warranty documentation for specific terms and conditions.
| Brand | KYB |
|---|---|
| Part Number | KG9004 |
| Position | Gas-a-just, Rear |
| B-stop | Y |
| Compressed Length | 14.21 |
| Dust Cover Included | Y |
| Extended Length | 21.57 |
| Lower Mount Type | E2(10X45) |
| R-stop | Y |
| Stroke Length | 7.36 |
| Upper Mount Type | S1 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1983 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; Gas-a-just |
| 1982 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; Gas-a-just |
| 1981 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; Gas-a-just |
| 1980 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; Gas-a-just |
| 1979 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; Gas-a-just |
| 1978 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; Gas-a-just |
| 1977 | BMW | 320i | Rear | Recommended OEM Replacement; (E21); The KYB replacement unit comes with a new dustcover / bumper assembly.; 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.