Re Spool O" Ring

Re Spool O" Ring

This is a replacement spool O-ring for the Eaton RE (Remote Electric) series hydraulic control valve, a common component in concrete mixer truck hydraulic systems. The O-ring fits on the control valve spool (CTM part number 725037) to create a proper seal, preventing fluid leakage and ensuring correct hydraulic pressure for functions like drum rotation. This part is critical for maintenance, as a worn or damaged O-ring can cause symptoms like the drum failing to hold its position or slow response from the controller. An installation tool (CTM part number 286438) is available specifically for this O-ring.

Key Features

• Direct replacement for the spool O-ring in Eaton RE series control valves.
• Seals the control valve spool (piston) to prevent hydraulic fluid bypass.
• Restores proper hydraulic function and response to the mixer drum controls.
• Designed for use with the Eaton RE control valve spool, part number 725037.

Fits These Mixers

McNeilus, Terex, Con-Tech. Fits the spool (part #725037) inside Eaton RE (Remote Electric) series hydraulic control valves commonly used on concrete mixer trucks from manufacturers including McNeilus, Con-Tech, and Terex.

Product descriptions are drafted with automated tools and reviewed as time allows. While we work to keep them accurate, specifications and fitment should be confirmed with a Customer Service specialist at 800-745-3414 before purchase. Found an error? Let us know and we’ll fix it.