HomeSuspension > Shocks and StrutsKYB KG5554 Shock Absorber - Rear
Part #: 1204204

KYB KG5554 Shock Absorber - Rear

Gas-a-just
61 vehicles fit this part
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Gas-a-just
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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.

BrandPentosin
Part Number1204204
PositionGas-a-just
Application TypeApplicationSpecific
ColorAmber
Container TypeBO
Country of OriginDE
Density at 20°C1065KG/M3
Flash Point130C/266F
Item Height10.0000
Item Length7.5000
Item Level GTIN4001541231980
Item Qty1
Item UOMEA
Item Weight12.4200
Item Weight Unit UOMLB
Item Width5.5000
Kinematic Viscosity at -40°C1500MM2/S
Kinematic Viscosity at 20°C14.5MM2/S
Kinematic Viscosity at 40°C7.9MM2/S
Link to Manufacturer Pagewww.pentosin.com
Product Desc Extended 240Pentosin 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 40Pentosin Super DOT 4 Brake Fluid
Product Desc Long 80Pentosin Super DOT 4 Brake Fluid
Product Desc Short 20Super DOT 4
Warranty Distance24000
Warranty Distance UOMMI
Wet Boiling Point165C/329F

This part fits 61 vehicles. Search below:

YearMakeModelPositionNotes
1992Mercedes-Benz500SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1991Mercedes-Benz420SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1991Mercedes-Benz560SECRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1991Mercedes-Benz560SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1990Mercedes-Benz420SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1990Mercedes-Benz560SECRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1990Mercedes-Benz560SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1989Mercedes-Benz420SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1989Mercedes-Benz560SECRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1989Mercedes-Benz560SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1989Mercedes-Benz560SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1988Mercedes-Benz420SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1988Mercedes-Benz560SECRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1988Mercedes-Benz560SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1988Mercedes-Benz560SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1987Mercedes-Benz420SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1987Mercedes-Benz560SECRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1987Mercedes-Benz560SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1987Mercedes-Benz560SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1986Mercedes-Benz420SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1986Mercedes-Benz560SECRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1986Mercedes-Benz560SELRearRecommended OEM Replacement; (W126), (C126) (Exc.Hydromat Susp.); Gas-a-just
1986Mercedes-Benz560SLRearRecommended OEM Replacement; From 9/85; Gas-a-just
1985Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1985Mercedes-Benz380SERearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1985Mercedes-Benz380SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1985Mercedes-Benz380SLRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1985Mercedes-Benz500SECRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1985Mercedes-Benz500SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1984Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1984Mercedes-Benz380SERearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1984Mercedes-Benz380SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1984Mercedes-Benz380SLRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1984Mercedes-Benz500SECRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1984Mercedes-Benz500SELRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1983Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1983Mercedes-Benz380SECRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1983Mercedes-Benz380SECRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1983Mercedes-Benz380SELRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1983Mercedes-Benz380SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1983Mercedes-Benz380SLRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1982Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1982Mercedes-Benz380SECRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1982Mercedes-Benz380SECRearRecommended OEM replacement for all vehicles except those equipped with Hydromat Suspension.; Gas-a-just
1982Mercedes-Benz380SELRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1982Mercedes-Benz380SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1982Mercedes-Benz380SLRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1981Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1981Mercedes-Benz380SELRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1981Mercedes-Benz380SLRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1981Mercedes-Benz380SLRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1981Mercedes-Benz380SLCRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1981Mercedes-Benz380SLCRearRecommended OEM replacement for vehicles with W126 chassis, excluding those with hydraulic suspension.; Gas-a-just
1980Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1980Mercedes-Benz300SDRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1979Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1979Mercedes-Benz300SDRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1978Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1978Mercedes-Benz300SDRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1977Mercedes-Benz300DRearReplace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just
1976Mercedes-Benz300DRearReplace 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.