AZUNO Compression Tester Automotive, Digital Gauge Molded Case
Block Tester BT-500 Head Gasket Combustion Leak Test Kit universal, Black309
Block Tester BT-500 Combustion Leak Test Kit. Complete Combustion Leak Test Kit – Includes Fluid – Nothing More to Buy. When Fluid Turns From BLUE to YELLOW Combustion Leak is Present.