Note: Verify your specific cylinder number and machine serial number before ordering — multiple cylinder seal kit part numbers are used on the JCB 85Z-1 and 86C-1 depending on cylinder position (boom, arm, bucket) and serial number range.
Condition: Aftermarket replacement part
Common Use Case or Symptoms: Use when the cylinder is leaking hydraulic fluid from the rod seal or end cap — visible oil weeping from the cylinder rod, spongy or drifting boom/arm/bucket response, or loss of digging force on the JCB 85Z-1 and 86C-1 midi excavators indicates failed cylinder seals requiring rebuild.
Why Choose Broken Tractor:
✅ JCB 85Z-1 & 86C-1 Confirmed Fitment: 991/20022 is the correct 50mm rod × 80mm bore hydraulic cylinder seal kit for the JCB 85Z-1 and 86C-1 midi excavators — verify your cylinder number and serial number before ordering.
✅ Fast Shipping from a U.S.-Based Team: In-stock and ready to ship from our U.S. warehouses.
$100.28$29.00/ea
(You save $71.28)
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
Can’t Find What You’re Looking For?
Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.
Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.
Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.
Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please call us toll free, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! Give us a call at 1-800-909-7060 and we would be pleased to help you.