Block Tester BT-500 Combustion Leak Test Kit – Made in USA

Complete Combustion Leak Test Kit – Includes Fluid – Nothing More to BuyWhen Fluid Turns From BLUE to YELLOW Combustion Leak is PresentTests in seconds for combustion leaks caused by: Blown Head Gasket (BHG) Cracked Head or Block Pulled Bolts or Studs Warped Sealing SurfacesQuality Tool Made in USA for over 45 years with Limited Lifetime WarrantyPackaged in OEM white box