Eaton Hydraulic Motor-W/O Hprv

Eaton Hydraulic Motor-W/O Hprv

This is an Eaton 4633 series heavy-duty hydraulic motor, a critical component for concrete transit mixer drum rotation. Engineered for reliability in demanding applications, it provides the high flow and pressure required to keep the mixer drum rotating consistently, whether the truck is in transit or idling. This specific model is supplied without an integrated high-pressure relief valve (HPRV), meaning the hydraulic system relies on an external relief valve. It is a common replacement part for maintaining the hydraulic drive system on various concrete mixers.

Key Features

• Fixed displacement, heavy-duty piston motor design.
• Engineered specifically for concrete mixer drum drive systems.
• Configuration without an integrated High-Pressure Relief Valve (HPRV).
• Features a 21-tooth, 16/32 pitch spline output shaft.
• Advanced cylinder barrel design permits high speed and pressure.
• Cast iron housing for durability in harsh operating conditions.

Fits These Mixers

McNeilus, Terex, Con-Tech. Fits various rear-discharge and front-discharge concrete mixers that use the Eaton 4600 series hydraulic motor for the drum drive. It is a known component in systems for brands like Con-Tech, McNeilus, and Terex.

All measurements ± standard manufacturing tolerance.

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.