McNeilus Hydraulic Control Block Seal Kit

McNeilus Hydraulic Control Block Seal Kit

This McNeilus Hydraulic Control Block Seal Kit contains all the necessary O-rings, backup rings, and cartridge seals required to fully rebuild the mixer's hydraulic manifold. The control block directs hydraulic fluid to critical functions such as the chute hoist, chute swing, and drum control circuits. Over time, high pressure, heat, and fluid contamination cause internal seals to degrade, leading to external leaks, loss of hydraulic pressure, or chute drift. Installing this replacement seal kit restores the integrity of the hydraulic circuit, ensuring precise control and preventing costly fluid loss in McNeilus rear discharge mixers.

Key Features

• Contains precision-molded O-rings, backup rings, and cartridge seals for McNeilus hydraulic manifolds
• Manufactured from high-durometer Nitrile (Buna-N) and Polyurethane for resistance to high-pressure hydraulic fluid
• Prevents internal fluid bypassing that causes chute drift and sluggish hydraulic response
• Designed to withstand standard mixer hydraulic system operating pressures up to 3,000 PSI
• Eliminates external leaks at the control block cartridge valves and port fittings

Fits These Mixers

McNeilus, Con-Tech, CBMW, Kimble. Fits McNeilus rear discharge concrete mixers equipped with hydraulic control blocks (such as the 108120 Drum Control Block) for chute and drum operations.

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.