5394639 Cummins Medium Duty Compression Test Leak Adapter Tool

Used to test compression, perform a leak-down test, or pressurize the combustion chamber on medium duty 6.7L, 8.9L and 12L series diesel engines with electronic fuel injection.

Injector must be removed to use the adapter.

Includes:

• 5394603 Location Gauge
• 5394640 Leak Test Adapter
• 5394642 Retainer Plate

Applications:

• 6.7L (medium duty)
• 8.9L
• L9
• L9.5
• 12L