Prince 9300 Seal Kit is a cylinder seal kit available from WQC Parts.
This listing uses Hercules part number PMCK-9300. Catalog description: 1-3/8 X 3-1/2.
Product Details
- Hercules part number: PMCK-9300
- Product type: Hydraulic cylinder seal kit
- Reference brand/application: Prince
- Approximate weight: 0.045 lb
- Catalog data source: 2026 US Mobile Kit Catalog
Catalog Application Data
- Equipment type: Loaders - Skid Steer
- Catalog page reference: 1077
Understanding This Seal Kit
- Catalog identification code: I-U-3
- Wiper code I: insert wiper
- Rod seal code U: U-seal
- Piston seal code 3: O-ring with back-up ring
The code separates the wiper, rod-seal and piston-seal arrangements so you can compare them with the cylinder being repaired. A wiper helps exclude dirt at the rod entry; rod seals and piston seals fit different locations in the cylinder.
The Hercules catalog lists this code against PMCK-9300. Match the kit reference to the original assembly; the code is an identification aid, not a complete packing list.
Fitment Verification
Before ordering, confirm the PMCK-9300 reference against your OEM reference number, machine model, cylinder location, bore and rod size, pump/motor series, and serial-number range. Manufacturer names and part numbers are used for identification and fitment reference only. If you are unsure, compare the old parts, measurements, and parts-book callout before installation.