188-4217 150.05 mm Bore Wear Ring Piston Guide Rod
Cat® Plastic Wear Ring Piston Guide for Hydraulic Cylinders
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Cat® Plastic Wear Ring Piston Guide for Hydraulic Cylinders


Cat® Plastic Wear Ring Piston Guide for Hydraulic Cylinders


The buffer seal is one of several seals required on a hydraulic cylinder. The buffer seal serves as a backup rod seal to protect the rod during system pressure spikes. Recommended Applications: Used as needed for servicing hydraulic cylinder components to ensure leak-free equipment. Refer to your Operation and Maintenance Manual or contact MECHSC for…

Specifications Material Nitrile / NBR / HNBR / XNBR Rubber Compatible Equipment Excavators: 330D L, 330C, 330D, 336D2 L, 330C L, 325D L, 336D L, 325C, 328D LCR, 385C, 385C L, 336D

Cat® cylinder seal lip shaft with a diameter of 115

Cat® two-piece seal for cylinders, with plastic seal ring and rubber expander

Cat® Two-Piece Seal for Hydraulic Cylinders with Plastic Seal Ring and Rubber Expander


Cat® wiper seals protect the swing shaft from contamination, ensuring smooth operation and long service life.

Compatible Equipment Mini Excavators: 305.5E, 306, 305.5 Excavators: 305, 305C CR




Cat® 33.09 mm Cross-Section Height Plastic Ring for Guiding the Piston in Hydraulic Cylinders