KYB KG4743 Shock Absorber - Rear
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KYB
 Gas-a-just

KYB KG4743 Shock Absorber - Rear

Brand KYB KG4743
Position Rear
B-stop Y
Compressed Length 17.72
Dust Cover Included Y
Extended Length 21.81
Lower Mount Type E2(10X40)
R-stop Y
Stroke Length 4.09
Upper Mount Type S1
Product line Gas-a-just
Fits Mercedes-Benz · 17 vehicles

OE monotube replacement. Restores original shock absorber performance with direct-fit engineering.

Monotube design. Separates gas and oil for fade-free operation and instant response.

Triple chrome piston rod. Reduces seal wear for smoother operation and longer service life.

Cross-references Gabriel 69966 and Monroe Shocks & Struts 39021 for the same application. See all 2.

$87.57Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Shock Absorbers are typically replaced in pairs, axle by axle.
Order total $87.57
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
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KYB Gas-a-Just Rear Shock for Mercedes-Benz E-Class

The KYB Gas-a-Just KG4743 is a rear suspension shock absorber built as an OE-style monotube replacement for select Mercedes-Benz E-Class applications. It is designed to restore original ride control while adding firmer damping response for vehicles that carry extra load, tow, or run larger wheels and tires.

Key Features

  • Monotube shock design with separate gas and oil chambers for consistent response
  • Up to 25% more damping performance than original equipment shocks
  • High-pressure nitrogen gas helps reduce fade and improve steering response
  • Triple chrome plated piston rod helps reduce seal wear and fluid leakage
  • Built with KYB valving for Mercedes-Benz E320, E430, E300, and E420 rear applications
  • Includes dust cover, B-stop, and R-stop

Product Details

The Gas-a-Just line is KYB’s monotube shock absorber series for drivers who want OE replacement control with added damping authority. On the KG4743, the air-free hydraulic working area responds quickly, while the high-pressure nitrogen chamber supports stable performance during normal driving and under heavier suspension demands. This part number, KG4743, is engineered for rear suspension use on select Mercedes-Benz E-Class models, including Mercedes-Benz E320 rear, Mercedes-Benz E430 rear, Mercedes-Benz E300 rear, and Mercedes-Benz E420 rear applications.

Cross-reference: this part cross-references Monroe Shocks & Struts 39021 for the same application.

Common Problems This Shock Can Address

  • Excessive rear-end bounce after bumps
  • Reduced control from worn OE shock absorbers
  • Soft or delayed steering response caused by suspension wear
  • Fade in damping performance during repeated road impacts
  • Seal wear and fluid leakage from aging shock components

Installation Notes

Verify rear fitment by model, year, and suspension configuration before installation. This shock is listed for 1996-2002 Mercedes-Benz E320 rear, 1998-2002 Mercedes-Benz E430 rear, 1996-1999 Mercedes-Benz E300 rear, and 1997 Mercedes-Benz E420 rear, with exclusions noted for self-leveling, sport suspension, rear level control, or related factory options. Confirm compressed length, extended length, stroke length, and mount types against the original unit before replacement.

Quality Assurance

KYB designs the Gas-a-Just line as an OE monotube replacement to restore factory ride characteristics with added damping control. The KG4743 uses a high-pressure monotube layout intended to maintain consistent response and support vehicle systems that depend on suspension performance remaining within manufacturer specifications.

Related reading

This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeDrive TypePositionNotes
2002Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
2002Mercedes-BenzE430—RWDRearRecommended OEM Replacement; (W210) (Exc. Sport Suspension); Gas-a-just
2001Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
2001Mercedes-BenzE430—RWDRearRecommended OEM Replacement; (W210) (Exc. Sport Suspension); Gas-a-just
2000Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
2000Mercedes-BenzE430—RWDRearRecommended OEM Replacement; (W210) (Exc. Sport Suspension); Gas-a-just
1999Mercedes-BenzE300——RearRecommended OEM Replacement; (W210)(Exc. Rear Level Control); Gas-a-just
1999Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
1999Mercedes-BenzE430——RearRecommended OEM Replacement; (W210) (Exc. Sport Suspension); Gas-a-just
1998Mercedes-BenzE300——RearRecommended OEM Replacement; (W210)(Exc. Rear Level Control); Gas-a-just
1998Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
1998Mercedes-BenzE430——RearRecommended OEM Replacement; (W210) (Exc. Sport Suspension); Gas-a-just
1997Mercedes-BenzE300——RearRecommended OEM Replacement; (W210)(Exc. Rear Level Control); Gas-a-just
1997Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
1997Mercedes-BenzE420——RearRecommended OEM Replacement; (Exc. Self Leveling & Sport Susp.); Gas-a-just
1996Mercedes-BenzE300——RearRecommended OEM Replacement; (W210)(Exc. Rear Level Control); Gas-a-just
1996Mercedes-BenzE320SedanRWDRearRecommended OEM Replacement; (W210) (Exc. Self Leveling); Gas-a-just
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gabriel — 69966Monroe Shocks & Struts — 39021