London Control Valve Coil

London Control Valve Coil

This is a replacement solenoid coil for the drum control valve assembly on London rear discharge concrete mixers. Specifically, this is the 'old style' coil for the MA-39790 valve assembly, which is commonly found on mixers equipped with Eaton 54 Series pumps. The coil receives an electrical signal to create a magnetic field, which shifts the valve spool and directs hydraulic fluid to either charge (mix) or discharge the concrete from the drum. It is a critical component for mixer operation, and failure can prevent the drum from rotating. This coil is replaced by the newer style HydraForce coil (part no. 4304012).

Key Features

• Direct replacement for the original 'old style' coil on London mixer drum control valves.
• Designed for 12V DC electrical systems common in heavy trucks.
• Features a 1/2" (12.7mm) center hole diameter to fit series 08 valve stems.
• Used to control the primary charge and discharge functions of the mixer drum.
• Robust, encapsulated design for protection against vibration and moisture.

Fits These Mixers

McNeilus, Con-Tech, CBMW, Kimble. Fits the MA-39790 hydraulic solenoid valve assembly used for drum charge and discharge control on London rear discharge concrete mixers, particularly those with Eaton 54 Series pumps.

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.