can i buy the just the electric pump motor for the original j27 brake assembly part no W8005667. thank you in advance.. ( Amy Dewhirst, 08/11/2020 )

Not through Workhorse. I'm not sure if you will be able to find one aftermarket or not.

hello and good day from nova scotia canada.i have a 2005 w24 chassis with the j72 auto brake..i have a slight static leak where the pump motor attaches to the alluminum port block.is there a gasket or o ring between the motor and alluminum port block.this the original j72 pump part noW8005667.thank you for your time and look forward to your reply. ( Amy Dewhirst, 08/11/2020 )

Sorry, no, this pump assembly and motor is non-serviceable through Workhorse.

Does this prevent the parking brake from engaging while underway even in the event of either a voltage or hydraulic loss? If this occurs can the vehicle still be driven. ( Rick Crosby, 05/18/2016 )

Hi Rick,

In the event of an electrical issue or voltage loss the valve will not allow the brake to engage and will allow you to continue driving.

In the event of a hydraulic loss, as long as the leak is not at the brake itself or in the metal line between the valve and the brake it would prevent a lock up. If the leak is at the brake itself, the brake needs to be replaced anyways and the likelihood of a leak at that metal line is very low.