Home› Driveline and Axles > Gaskets and Sealing Systems› Genuine 0039972548 Differential Cover O-Ring - Rear
Genuine 0039972548 Differential Cover O-Ring - RearOE Quality 60-Day Returns
Part #: 0039972548

Genuine 0039972548 Differential Cover O-Ring - Rear

Rear
42 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$14.11Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mercedes-Benz, 350SD, 350SDL, 420SEL, 560SEC, 560SEL, 560SL, 380SE, 380SL, 500SEC, 500SEL, 380SEC, 380SEL, 380SLC, 450SEL, 450SL, 450SLC, and 450SE
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Differential Cover O-Ring options

Mercedes-Benz Differential Cover O-Ring

This Genuine differential cover O-ring, part number 0039972548, is a rear axle sealing component for select Mercedes-Benz models. It helps maintain a secure seal at the differential cover to support clean, leak-free driveline operation.

  • Genuine OE-style differential cover O-ring
  • Rear axle sealing component for Mercedes-Benz driveline service
  • Direct fit for select 1981-1991 Mercedes-Benz applications
  • Compatible with ABS wheel speed sensor-equipped rear differentials
  • Part number 0039972548 for accurate ordering and service matching

Fitment Details

  • Fits 1991 Mercedes-Benz 350SD, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1990-1991 Mercedes-Benz 350SDL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1986-1991 Mercedes-Benz 420SEL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1986-1991 Mercedes-Benz 560SEC, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1986-1991 Mercedes-Benz 560SEL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1986-1989 Mercedes-Benz 560SL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1984-1985 Mercedes-Benz 380SE, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1981-1985 Mercedes-Benz 380SL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1984-1985 Mercedes-Benz 500SEC, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1984-1985 Mercedes-Benz 500SEL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1982-1983 Mercedes-Benz 380SEC, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1981-1983 Mercedes-Benz 380SEL, rear. Compatible with ABS Wheel Speed Sensor.
  • Fits 1981 Mercedes-Benz 380SLC, rear. Compatible with ABS Wheel Speed Sensor.

What This Part Helps Address

  • Rear differential oil seepage at the cover sealing surface
  • Fluid loss that can leave the axle housing underfilled
  • Service leaks after differential cover removal
  • Seal deterioration from age, heat, and drivetrain contamination
  • Fitment matching for Mercedes-Benz rear axle service on 350SD, 350SDL, 420SEL, 560SEC, 560SEL, and related models

Installation Notes

Clean the differential cover and housing sealing surfaces before installation. Inspect the cover for warping, corrosion, or damage that could affect sealing. Verify rear-axle application and confirm part number 0039972548 before reassembly on Mercedes-Benz 380SL, 560SL, and other listed models.

Quality Assurance

Genuine branded part for service replacement on listed Mercedes-Benz rear differential applications. This part cross-references no additional part numbers in the provided data.

This part fits 42 vehicles. Search below:

YearMakeModelPositionNotes
1991Mercedes-Benz350SDRearCompatible with ABS Wheel Speed Sensor.
1991Mercedes-Benz350SDLRearCompatible with ABS Wheel Speed Sensor.
1991Mercedes-Benz420SELRearCompatible with ABS Wheel Speed Sensor.
1991Mercedes-Benz560SECRearCompatible with ABS Wheel Speed Sensor.
1991Mercedes-Benz560SELRearCompatible with ABS Wheel Speed Sensor.
1990Mercedes-Benz350SDLRearCompatible with ABS Wheel Speed Sensor.
1990Mercedes-Benz420SELRearCompatible with ABS Wheel Speed Sensor.
1990Mercedes-Benz560SECRearCompatible with ABS Wheel Speed Sensor.
1990Mercedes-Benz560SELRearCompatible with ABS Wheel Speed Sensor.
1989Mercedes-Benz420SELRearCompatible with ABS Wheel Speed Sensor.
1989Mercedes-Benz560SECRearCompatible with ABS Wheel Speed Sensor.
1989Mercedes-Benz560SELRearCompatible with ABS Wheel Speed Sensor.
1989Mercedes-Benz560SLRearCompatible with ABS Wheel Speed Sensor.
1988Mercedes-Benz420SELRearCompatible with ABS Wheel Speed Sensor.
1988Mercedes-Benz560SECRearCompatible with ABS Wheel Speed Sensor.
1988Mercedes-Benz560SELRearCompatible with ABS Wheel Speed Sensor.
1988Mercedes-Benz560SLRearCompatible with ABS Wheel Speed Sensor.
1987Mercedes-Benz420SELRearCompatible with ABS Wheel Speed Sensor.
1987Mercedes-Benz560SECRearCompatible with ABS Wheel Speed Sensor.
1987Mercedes-Benz560SELRearCompatible with ABS Wheel Speed Sensor.
1987Mercedes-Benz560SLRearCompatible with ABS Wheel Speed Sensor.
1986Mercedes-Benz420SELRearCompatible with ABS Wheel Speed Sensor.
1986Mercedes-Benz560SECRearCompatible with ABS Wheel Speed Sensor.
1986Mercedes-Benz560SELRearCompatible with ABS Wheel Speed Sensor.
1986Mercedes-Benz560SLRearCompatible with ABS Wheel Speed Sensor.
1985Mercedes-Benz380SERearCompatible with ABS Wheel Speed Sensor.
1985Mercedes-Benz380SLRearCompatible with ABS Wheel Speed Sensor.
1985Mercedes-Benz500SECRearCompatible with ABS Wheel Speed Sensor.
1985Mercedes-Benz500SELRearCompatible with ABS Wheel Speed Sensor.
1984Mercedes-Benz380SERearCompatible with ABS Wheel Speed Sensor.
1984Mercedes-Benz380SLRearCompatible with ABS Wheel Speed Sensor.
1984Mercedes-Benz500SECRearCompatible with ABS Wheel Speed Sensor.
1984Mercedes-Benz500SELRearCompatible with ABS Wheel Speed Sensor.
1983Mercedes-Benz380SECRearCompatible with ABS Wheel Speed Sensor.
1983Mercedes-Benz380SELRearCompatible with ABS Wheel Speed Sensor.
1983Mercedes-Benz380SLRearCompatible with ABS Wheel Speed Sensor.
1982Mercedes-Benz380SECRearCompatible with ABS Wheel Speed Sensor.
1982Mercedes-Benz380SELRearCompatible with ABS Wheel Speed Sensor.
1982Mercedes-Benz380SLRearCompatible with ABS Wheel Speed Sensor.
1981Mercedes-Benz380SELRearCompatible with ABS Wheel Speed Sensor.
1981Mercedes-Benz380SLRearCompatible with ABS Wheel Speed Sensor.
1981Mercedes-Benz380SLCRearCompatible with ABS Wheel Speed Sensor.

* 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.