Brake Proportioning Valve Bleeder Tool, Valve Bleeding Tool Compatible with GM Combination Valves, PV2 PV4, Disc/Disc Disc/Drum AC Delco 172-1353 172-1371 Features: Brake proportioning valve bleeder tool, compatible with non-adjustable GM style combination valves, AC Delco 172-1353, 172-1371, Disc/Disc and Disc/Drum PV2 PV4. Help you to lock the low pressure exhaust valve, make braking system bleeding more easy and fast, avoid the valve from tripping. Just twist off your brake light warning switch on the valve, then screw this tool into its place easily. Made from aluminum alloy, lightweight and durable, specially designed for bleeding brakes. We offer 1 year after-sales service. Your order will get fast delivery by FBA. Product Description Brake Proportioning Valve Bleeder Tool - GM Brake Proportioning Valve Bleeding Tool [ APPLICATIONS ] Compatible with Disc/Disc and Disc/Drum PV2, Disc/Disc and Disck/Drum PV4 AC Delco 172-1353, AC Delco 172-1371 Non-adjustable GM combination valves/combo valves Used with your CPP proportioning valves (Please check your brake valve before purchase) Perfect for DIY brake modifications, enjoy bleeding a new valve in your vehicle and improve your braking power. [ FEATURES ] Great Quality The bleeder tool is made of aluminum alloy, not cheap plastic. Not easy to break off when bleeding. A light weight and portable tool in your toolbox. Easy to Use Twist off your brake failure light switch on the valve, and replace it with the tool. Screw this tool into its place easily. It will hold your valve in place. Helpful Tool Help to lock your valve in position, prevent fluid from entering, make braking system bleeding more easy and fast, avoid the valve from tripping. Product Size If you are not sure, please measure your brake failure light switch size and compare with this product size. (The data may have errors due to manual measurement) [ SPECIFICATIONS ] Material Aluminum Alloy Color Blue Weight 0.53 oz Size 1.55×0.7×0.7 inch Package List 1 × Brake Proportioning Valve Bleeder Tool Package Includes: One (1) Brake Proportioning Valve Bleeder Tool, Valve Bleeding Tool Compatible with GM Combination Valves, PV2 PV4, Disc/Disc Disc/Drum AC Delco 172-1353 172-1371