50-Piece Cooling System Service Kit: Combines pressure testing. vacuum purging. coolant refilling. and temperature one comprehensive set. Includes a hand pressure pump. vacuum purge and refill tool. radiator adapters. probe thermometer. wrench. hoses. air fittings. gloves. sealing accessories. and a molded carrying case. Check Cooling System Pressure Loss: The hand pump provides a testing range of up to 35 psi to help identify pressure loss around radiators. coolant reservoirs. heater cores. water pumps. hoses. pipes. caps. and related connections. Always follow the vehicle manufacturer’s recommended test pressure. Expanded Adapter Selection: Includes 22 standard radiator adapters. 10 adapters designed for select electric and hybrid vehicle cooling systems. 8 expansion-style reservoir fittings with matching adapters. and universal cone-shaped connectors. Adapter sizes include options from 45 to 71 mm for broad application coverage. Vacuum Purging and Coolant Refilling: Connect the vacuum refill tool to a compatible workshop air supply to evacuate trapped air and draw coolant into the system. European and American air inlet fittings. filling and exhaust hoses. and a 32–400°F probe thermometer are included for convenient cooling-system service. Additional Sealing Accessories: Comes with 33 replacement O-rings. rubber flat washers. and hose clamps for different connection and sealing needs. Color-coded adapters and molded size markings simplify tool selection. while the fitted carrying case keeps the complete set organized for storage and transport.