TU-15-81 C-7 C-9 Diesel Compression Test Adapter Tool
This WON'T work on Acert models.
Used with J-6692-B, 303-D092, AM-303-D092, or J-26999 Compression Test Gauges
Injector adapter with quick disconnect for Caterpillar C7 & C9 engines
1/4 NPT Fittting