The Hendrickson MK21704S is a slack adjuster designed for use in Hendrickson suspension systems. Slack adjusters maintain proper brake pushrod travel and are a critical component in drum brake systems on heavy-duty commercial vehicles. This is a genuine Hendrickson part, sold by Pro Gear and Transmission. If you need help confirming this is the correct adjuster for your axle or suspension configuration, give us a call before ordering.
Features
Genuine Hendrickson part number MK21704S
Slack adjuster for heavy-duty drum brake systems
Maintains correct brake pushrod travel and adjustment
Compatible with Hendrickson suspension configurations
Call Pro Gear and Transmission to confirm proper fitment for your application
