Challenge Air Chamber With Clevis

Challenge Air Chamber With Clevis

This air chamber, also known as a pancake or service chamber, converts compressed air into mechanical force to operate auxiliary systems on a concrete mixer truck. It is specifically intended for use on the 'Boost-A-Load' lift axle system found on Challenge Cook Brothers (CBMW) rear discharge mixers. Replacing a leaking or damaged air chamber is critical for ensuring the lift axle operates correctly, allowing for legal weight distribution and reduced tire wear when the truck is unloaded. This chamber features a non-spring design and comes complete with a clevis for direct attachment to the axle linkage.

Key Features

• Designed for lift axle actuation on Challenge Cook Brothers mixers.
• Single diaphragm service chamber (pancake style).
• Includes a pre-installed clevis (yoke) for easy installation.
• Powder-coated steel housing for corrosion resistance.
• Standard 5/8"-11 UNC mounting studs.
• Commonly features 3/8"-18 NPT air ports.

Fits These Mixers

McNeilus, Con-Tech, CBMW, Kimble. This part is a likely replacement for the air chamber used on the 'Boost-A-Load' trailing lift axle system for Challenge Cook Brothers (CBMW) rear discharge concrete mixers. The original OEM part number is not known. The specifications are based on common Type 24 service chambers used for this application. Verification of chamber type (size) and stroke length is recommended before purchase.

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.