700-80-64220 Back-Up Ring for Komatsu PC200 PC300 Excavator D65EX Dozer

700-80-64220 Back-Up Ring – Premium Aftermarket Solution for Komatsu Machinery

Safeguard your hydraulic systems against extrusion and high-pressure failures with the WINSCHEN 700-80-64220 Back-Up Ring. Engineered to match industry-leading standards, this premium aftermarket sealing component provides critical support to primary O-rings, ensuring reliable operation in your Komatsu excavators, dozers, and graders.

Key Features and Selling Points

• Manufactured to precise OEM dimensions for a guaranteed fit across a wide range of Komatsu heavy equipment.
• Constructed from high-performance PTFE (Teflon) composite materials for exceptional wear resistance and low friction.
• Effectively prevents O-ring extrusion in high-pressure hydraulic cylinders and components.
• Cost-effective and highly dependable aftermarket alternative to original parts for routine maintenance.
• Designed to withstand extreme temperature fluctuations and harsh industrial hydraulic fluids.

Compatible Equipment Models

Based on official catalog and market data, the 700-80-64220 back-up ring services the hydraulic components of the following Komatsu equipment:

• Excavators: PC200, PC210, PC220, PC300, PC400, PC12R, PC15MR, PC18MR
• Crawler Dozers: D31EX, D37EX, D39EX, D51PX, D61EX, D65EX, D155A, D275A, D375A, D475A
• Motor Graders: GD655
• Application: Hydraulic Cylinder / System Sealing

Specifications

To guarantee 100% fitment, please verify your machine’s serial number with our dedicated support team prior to purchasing. We proudly offer fast and reliable global shipping to keep your projects on schedule.