Description
The JCB 3DX swing cylinder seal kit (also commonly referred to as the slew cylinder seal kit or swing ram seal kit) is an essential maintenance component used to prevent hydraulic oil leaks and maintain proper pressure in the backhoe’s swing mechanism.
Key Specifications & Kit Details
Compatible Machine: JCB 3DX / 3DX Super / 3DX Extra backhoe loaders.
Common Part Numbers: 550/42261, 550/41004, 336/E7315.
Materials: Polyurethane (PU), Nitrile Rubber (NBR), and PTFE guide rings.
Included Seals:
Piston Seal & Buffer Seals
Rod Seals / Wiper Seals
O-Rings & Back-up Rings
Wear Rings / Guide Rings
Function: Retains fluid pressure, resists wear under heavy hydraulic loading, and protects against debri
s ingress.

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