The HF-SK90 series collects every seal a component rebuild consumes into one bag matched by model and serial number: piston seals, rod seals, wipers, O-rings and backup rings, in the compounds the duty calls for. No cross-reference spreadsheets, no near-fit compromises.
Compound selection is part of the kit definition — nitrile for standard mineral-oil duty, fluoroelastomer where temperature or fluid chemistry asks for it, and polyurethane where abrasion resistance earns its keep. Kits are vacuum-packed with date codes, so shelf stock stays trustworthy.
Order by the machine or component serial number and the correct kit arrives; our records keep the mapping so you do not have to.
