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KYB KG5554 Shock Absorber - Rear
Overview of KYB Gas-a-just Suspension Shock Absorber KG5554
The KYB Gas-a-just shock absorber KG5554 is engineered for select Mercedes-Benz models, including the 300D, 380SE, and 560SEL. Designed to restore original handling and ride quality, this suspension shock absorber offers precise damping performance tailored to your vehicle's specifications.
- Compressed length: 11.06 inches
- Extended length: 17.76 inches
- Stroke length: 6.69 inches
- Lower mount type: E3 (61.6x87x0)
- Upper mount type: S1
- No dust cover included
- No internal rebound spring
- No B-stop or R-stop
Detailed Product Description
The KYB Gas-a-just KG5554 shock absorber is designed with specific dimensions to fit a range of Mercedes-Benz vehicles, including the 300D, 300SD, 380SE, 380SEC, 380SEL, 380SL, 380SLC, 420SEL, 500SEC, 500SEL, 560SEC, 560SEL, and 560SL. With a compressed length of 11.06 inches and an extended length of 17.76 inches, it provides a stroke length of 6.69 inches, ensuring optimal suspension travel and control. The lower mount type E3 (61.6x87x0) and upper mount type S1 are designed to match factory specifications for secure installation and reliable performance. This shock absorber does not include a dust cover or internal rebound spring, and it lacks B-stop and R-stop features, aligning with the original equipment design for these Mercedes-Benz models.
About the Gas-a-just Product Line
KYB's Gas-a-just line focuses on gas-charged shock absorbers that deliver consistent damping performance and improved vehicle control. The Gas-a-just shocks are engineered to provide a balance between comfort and handling, making them suitable for a variety of passenger vehicles. The KG5554 model is part of this line, offering a direct replacement option that maintains the driving characteristics expected from Mercedes-Benz vehicles.
Common Applications and Problem Solving
- Restores original ride comfort and handling on Mercedes-Benz 300D and 380SE models
- Reduces excessive bouncing and body roll during cornering
- Improves vehicle stability on uneven or rough road surfaces
- Addresses worn or leaking shock absorbers causing poor suspension response
- Eliminates noise and vibration associated with damaged shocks
Installation Notes and Tips
Installation of the KYB Gas-a-just KG5554 shock absorber requires matching the compressed and extended lengths to the vehicle’s suspension geometry. Ensure the lower mount type E3 and upper mount type S1 align correctly with the vehicle’s mounting points. Since this shock does not include a dust cover, inspect the mounting area for debris or damage before installation. It is recommended to replace shocks in pairs to maintain balanced suspension performance.
Quality Assurance and Warranty
KYB manufactures the Gas-a-just KG5554 shock absorber to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, KYB typically offers coverage against defects in materials and workmanship. This ensures reliable operation and peace of mind when replacing suspension components on your Mercedes-Benz 300D, 380SE, or 560SEL.
| Brand | Pentosin |
|---|---|
| Part Number | 1204204 |
| Position | Gas-a-just |
| Application Type | ApplicationSpecific |
| Color | Amber |
| Container Type | BO |
| Country of Origin | DE |
| Density at 20°C | 1065KG/M3 |
| Flash Point | 130C/266F |
| Item Height | 10.0000 |
| Item Length | 7.5000 |
| Item Level GTIN | 4001541231980 |
| Item Qty | 1 |
| Item UOM | EA |
| Item Weight | 12.4200 |
| Item Weight Unit UOM | LB |
| Item Width | 5.5000 |
| Kinematic Viscosity at -40°C | 1500MM2/S |
| Kinematic Viscosity at 20°C | 14.5MM2/S |
| Kinematic Viscosity at 40°C | 7.9MM2/S |
| Link to Manufacturer Page | www.pentosin.com |
| Product Desc Extended 240 | Pentosin Super DOT 4 Brake Fluid exceeds FMVSS 116 DOT 4, SAE J1704 and ISO 4925 Class 4 specification standards. Used by leading automotive manufacturers as first-fill, as well as refill. Especially suited for use in vehicles with ABS. |
| Product Desc Invoice 40 | Pentosin Super DOT 4 Brake Fluid |
| Product Desc Long 80 | Pentosin Super DOT 4 Brake Fluid |
| Product Desc Short 20 | Super DOT 4 |
| Warranty Distance | 24000 |
| Warranty Distance UOM | MI |
| Wet Boiling Point | 165C/329F |
This part fits 61 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1992 | Mercedes-Benz | 500SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1991 | Mercedes-Benz | 420SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1991 | Mercedes-Benz | 560SEC | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1991 | Mercedes-Benz | 560SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1990 | Mercedes-Benz | 420SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1990 | Mercedes-Benz | 560SEC | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1990 | Mercedes-Benz | 560SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1989 | Mercedes-Benz | 420SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1989 | Mercedes-Benz | 560SEC | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1989 | Mercedes-Benz | 560SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1989 | Mercedes-Benz | 560SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1988 | Mercedes-Benz | 420SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1988 | Mercedes-Benz | 560SEC | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1988 | Mercedes-Benz | 560SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1988 | Mercedes-Benz | 560SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1987 | Mercedes-Benz | 420SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1987 | Mercedes-Benz | 560SEC | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1987 | Mercedes-Benz | 560SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1987 | Mercedes-Benz | 560SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1986 | Mercedes-Benz | 420SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1986 | Mercedes-Benz | 560SEC | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1986 | Mercedes-Benz | 560SEL | Rear | Recommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just |
| 1986 | Mercedes-Benz | 560SL | Rear | Recommended OEM Replacement; From 9/85; Gas-a-just |
| 1985 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1985 | Mercedes-Benz | 380SE | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1985 | Mercedes-Benz | 380SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1985 | Mercedes-Benz | 380SL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1985 | Mercedes-Benz | 500SEC | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1985 | Mercedes-Benz | 500SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1984 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1984 | Mercedes-Benz | 380SE | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1984 | Mercedes-Benz | 380SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1984 | Mercedes-Benz | 380SL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1984 | Mercedes-Benz | 500SEC | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1984 | Mercedes-Benz | 500SEL | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1983 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1983 | Mercedes-Benz | 380SEC | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1983 | Mercedes-Benz | 380SEC | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1983 | Mercedes-Benz | 380SEL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1983 | Mercedes-Benz | 380SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1983 | Mercedes-Benz | 380SL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1982 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1982 | Mercedes-Benz | 380SEC | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1982 | Mercedes-Benz | 380SEC | Rear | Recommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just |
| 1982 | Mercedes-Benz | 380SEL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1982 | Mercedes-Benz | 380SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1982 | Mercedes-Benz | 380SL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1981 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1981 | Mercedes-Benz | 380SEL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1981 | Mercedes-Benz | 380SL | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1981 | Mercedes-Benz | 380SL | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1981 | Mercedes-Benz | 380SLC | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1981 | Mercedes-Benz | 380SLC | Rear | Recommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just |
| 1980 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1980 | Mercedes-Benz | 300SD | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1979 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1979 | Mercedes-Benz | 300SD | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1978 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1978 | Mercedes-Benz | 300SD | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1977 | Mercedes-Benz | 300D | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 1976 | Mercedes-Benz | 300D | Rear | 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.