JCB Aftermarket Seal Kits | Part Inquiry Service | Ruijueparts

Product Description 991/20020 is an aftermarket universal hydraulic-cylinder seal kit identified as 50 × 25, meaning a 25 mm piston rod and 50 mm cylinder bore reference. Market catalogues commonly list it for selected JCB 3CX and 4CX steering-cylinder applications. Because JCB uses different rams across series and production variants,...

Product Description25/975704 is an aftermarket wiper seal for a matching JCB hydraulic valve application. It is an individual sealing component rather than a complete valve-spool or cylinder repair kit. Match the valve reference and the removed wiper profile before ordering; a wiper and an internal pressure seal perform different roles....

Product Description25/974637 is an aftermarket sealing kit for a matching JCB hydraulic valve spool. Replacement-parts catalogues identify a valve-spool service set for 3CX and 4CX reference applications. This does not establish compatibility with every valve fitted to those machines: check the valve assembly and the original kit number. Ruijueparts can...

Product Description25/929305 is an aftermarket spool seal kit for matching JCB hydraulic control valves. The 531-70 T2 agriculture valve diagram lists this kit separately from the valve-section joint kit, helping buyers identify the correct repair location. Check the installed valve-block number before selecting seals for leakage around a spool. Ruijueparts...

Product Description400/04421 is an aftermarket valve-block intersection seal kit, using the successor reference to 25/401408. It services the joint between valve sections rather than the spool sealing group. The 531-70 T2 agriculture valve diagram lists the two references together. Buyers should identify the valve block and count the joints being...

Product Description 998/10784 is an aftermarket steering cylinder seal kit for selected JCB Loadall telehandler applications. A JCB telehandler parts catalogue cross-references this number with 45/807-4 and identifies its service position as the steering cylinder. The steering ram directs hydraulic force to the axle linkage to turn the machine, so...

Product Description 991/00100 is an aftermarket hydraulic cylinder seal kit referenced for selected JCB backhoe loader cylinder applications. The reference size is 40 mm rod × 70 mm bore, but this is not a single-position kit: documented uses include specified boom, dipper, rear bucket, front shovel, lift, swing, stabilizer, extension,...

Product Description 448/17201 is an aftermarket hydraulic steering cylinder seal kit for selected JCB telehandler applications. The steering ram transfers hydraulic force through the steering linkage to turn the wheels, making correct cylinder identification important for safe machine operation. Catalogue data specifically lists this reference for the steering cylinder on...

Product Description 333/Y6024 is an aftermarket hydraulic boom cylinder seal kit for selected JCB backhoe loader applications. The boom cylinder raises and lowers the rear excavator boom during digging, trenching, lifting, and loading work. JCB identifies this reference as “Seal Kit – Boom,” so it should not be substituted for...

Product Description 991/00012 is an aftermarket hydraulic cylinder seal kit referenced for selected JCB backhoe loader and telehandler cylinders. Its 60 mm rod × 100 mm bore reference size can occur in more than one cylinder position, including specified boom/stick, swing and heavy-duty stabilizer applications. This makes cylinder position and...

Product Description 991/00013 is an aftermarket hydraulic seal kit for the rear backhoe bucket cylinder on selected JCB backhoe loaders. The kit is referenced for a 50 mm rod and a 90 mm bore cylinder, which controls the curl movement of the rear digging bucket. It is not intended for...

Product Description 45/920098 is an aftermarket rotary coupling seal kit, also called a center joint or rotary joint seal kit, for selected JCB compact excavators. The rotary coupling transfers hydraulic oil between the upper structure and undercarriage while the machine rotates, supporting functions such as track travel without twisting hoses....