KC Boost Leak Detector - Powerstroke, Cummins

KC Boost Leak Detector - Powerstroke, Cummins

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KC Boost Leak Detector - Powerstroke, Cummins

KC Boost Leak Detector - Powerstroke, Cummins

7 reviews

SKU 300852

Regular price $ 89.00
Regular price Sale price $ 89.00


Turbo Inlet

KC Boost Leak Detector


Features & Details:

  • Milton M-style/D or I/M Industrial Connector
  • Billet Aluminum
  • PSI Gauge for Easy Check
  • Shut-Off Valve

      And a choice to choose from:

  • 4" turbo inlet boot connector for MOST applications (Powerstroke/Cummins)
  • 3.5" turbo inlet boot connector for OBS/e99 (typically for upgraded turbos)
  • 3" turbo inlet boot connector for OBS/e99 (typically for stock size turbos)


Boost leaks big and small can rob your engine of power, spike EGT's and effect the overall performance of your diesel truck.

Even the most skilled installers can create a boost leak somewhere in the system. This detector fits on the inlet of the turbo. You will use your current clamp for your air intake to connect this detector to the turbo. Pressurize the system all the way on the gauge with an air compressor, and then close the fill valve. The needle should take about 45 seconds to drop down to zero. If it goes faster, you might have a leak. Often times the boost leak will make a loud squeal and then you will have to chase it down with your ear. Putting soap and water in a spray bottle can help you find slow boost leaks. Just spray the solution on boots, intake manifold gaskets and any other connection point to visualize the air leaking.

*May Require Modification to use on a 6.4


***Please note that there is no warranty on any DIY products***

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Customer Reviews

Based on 7 reviews
Brian MacEachern
7.3 Boost Leak Detector

Before ordering, I knew there was an issue with the clamps. I specifically asked for 2 T clamps. It came with the cheapest hose clamps I've ever seen and was a straight hose not the 90 pictured? Needless to say, at 10 to 15 pounds, the hose started slipping off so I was not able to do the test. Come on Charlie, you guys are better than this.

Oleg Zheltkov
2005 Dodge 2500

It should have came with a 45 or a 90 for the air fitting. I had to change it out otherwise it’s right up against the oil filter.

Marcus Sheffield
Great tool but needs 2 t-bolt clamps

Used the tool to find 2 boost leaks but was very unhappy with it only coming with 1 T-bolt clamp for the end where the gauge and valve are. The stock band clamps that your turbo uses on the intake side will not hold the pressure required to check the system. This again is a great tool just needs 2 t-bolt clamps.

Thomas E Carter II
Worked perfectly

Wish I had one for exhaust system

Keighly Frank
fantastic products!

Fast shipping, fantastic products!