Find the seal kit for your cylinder
Pick your machine, or measure the cylinder and search by bore and rod. Every kit lists every seal in it, with materials and sizes.
Kits we build most often7 machines
- Bobcat 331Excavators4 kits
- John Deere 310SGBackhoe Loaders3 kits
- Caterpillar 303.5EExcavators2 kits
- Kubota L3901Tractors2 kits
- Komatsu PC50MR-2Excavators2 kits
- Bobcat S185Skid Steers & Track Loaders2 kits
- Case SR210Skid Steers & Track Loaders2 kits
Not listed? Browse everything we fit.
How this works
From leak to the right kit
Three steps, and the only one that needs you is the first.
- 01
You identify the cylinder
Machine and position, or bore and rod off a caliper. Either one is enough. If neither lands, the request form takes a photo of the old seals.
- 02
We pull it, or we build it
Common kits sit on the shelf ready to go. Anything else we assemble here from individual seals — rod seal, piston seal, wiper, wear rings, O-rings. Either way every kit page lists exactly what is in the bag.
- 03
It ships
Every kit page gives a ship estimate and says whether the kit is in stock or built for you. Nothing here is OEM — our kits are dimensional equivalents that fit.
Lead times
On the shelf, or built for you
We stock the common kits, so most orders ship off the shelf. If we don’t have yours — an odd bore, an obsolete cylinder, a mix you spec yourself — we build it, usually about 3 to 5 business days, longer if a seal has to come in from a supplier first. Every kit page says which it is, and you see the same estimate in the cart and on your confirmation.
Not sure what you have? Measure the cylinder or send us photos of the old seals.