These kits are custom made in the USA,

Our seals are made thicker than OEM. With that being said, the upper lip is 1mm thicker than the OEM style seals. Depending on your spool valve, you made need to drill out your retainer to roughly 16.50-16.75mm to allow for adequate spacing for the lip to slide into. If the seal is too tight, it will cause binding. These seals are designed to be thicker to help prevent “rolling/blow-outs” under extreme heat and load. Please keep this in mind prior to purchase. If there is any questions, feel free to contact us.

Chinese excavator spool valve rebuild kit.

Kit includes 8 o rings and 8 retaining rings for the rods. The retaining rings are thicker than OEM and harder.

O rings for each individual blocks.

O rings for the hydraulic line adaptors

This kit is meant for 4 block spool valves.

.08-1.5 ton machines.

Will fit some mini skid steers as well