Features and Benefits:

• Proper service procedure requires that a proportioning valve depressor be installed on the 4WAL unit when pressure bleeding the brake system.
• For best results on 4WAL, use two of these depressors, one for each valve.
• Services a wide variety of General Motors utility vehicles, vans, and pickups with Kelsey Hayes anti-lock brake systems. Also works on RWAL systems and must be installed on the proportioning valve (only one depressor required)