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1996-1999 Mercedes-Benz S420 Automatic Transmission Extension Housing Seal - National SX-FF87

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New National extension housing seal (SX-FF87) — direct replacement for 1996–1999 Mercedes‑Benz S420 automatic transmissions.

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BrandNational
MPN / Part NumberSX-FF87 1999 1998 1997 1996 Automatic
OE NumberTimken SKF C171 VEMO King 17-29
Part TypeAutomatic Transmission Extension Housing Seal
PositionTransmission > Gaskets Sealing Systems
TransmissionAutomatic

Product Description

New National extension housing seal (MPN: SX-FF87). Designed as a direct replacement for automatic transmission extension housing on Mercedes‑Benz S420 models from 1996 through 1999. Supplied as a single piece. Interchange references include Timken, SKF, C171, VEMO, and King 17-29.

Product Specifications

BrandNational
TypeAutomatic Transmission Extension Housing Seal
Manufacturer Part NumberSX-FF87 1999 1998 1997 1996 Automatic
Manufacturer Warranty1 Year
Interchange Part NumberTimken SKF C171 VEMO King 17-29
Placement on VehicleTransmission > Gaskets Sealing Systems
Compatible MakeMercedes-Benz
Compatible ModelS420
Compatible Year1999 1998 1997 1996
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
UPCDoes not apply
Country of OriginUnited States
Placement on VehicleTransmission > Gaskets Sealing Systems
Interchange Part NumberTimken SKF C171 VEMO King 17-29
Core ChargeFree - No Core Charge
Fitment TypeDirect Replacement
Bundle Description1 pc National Extension Housing Seal
UPCDoes not apply
Country of OriginUnited States

Vehicle Fitment

YearMakeModelEngineTrimTransmission
1996Mercedes-BenzS420Automatic
1997Mercedes-BenzS420Automatic
1998Mercedes-BenzS420Automatic
1999Mercedes-BenzS420Automatic

Always compare the part number and listed specifications with your original part before ordering.