Caterpillar 3C3239 Buffer Ring is a Hercules catalog product available from WQC Parts for hydraulic cylinder, seal kit, pump, motor, valve, and heavy-equipment repair applications. This listing uses Hercules part number CTC-3C3239. Catalog description: BU-90URE-2.25x1/8-C/S(10). Product Details Hercules part number: CTC-3C3239 Product type: Hydraulic sealing or repair component Reference brand/application: Caterpillar Approximate weight: 0.002 lb Use this product when your parts book, service manual, cylinder repair list, pump/motor breakdown, or existing component calls for CTC-3C3239. It is intended to help restore sealing performance, reduce leakage, and support reliable equipment repair when correctly matched to the application. Fitment VerificationBefore ordering, confirm the CTC-3C3239 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.
