RAM 6.7L grid heater bolt failure is real. It's killed an untold number of Cummins engines. Over time, a bolt in the 2007-current stock RAM 6.7L Cummins grid heater deteriorates, falls into the intake runner, and thanks to gravity, makes its way into cylinder #6. In many cases, it results in severe piston, cylinder wall, valve and head damage, or worse... total engine failure. Many mechanics either aren't aware of the problem or have not properly diagnosed it. "This is one of the most misdiagnosed Cummins engine issues," says Protech Diesel Center's Brad Hunt. "All too often, mechanics simply replace the engine. Therefore, the problem persists."

Randy, a 2016 RAM 6.7L owner, noticed a check engine light. An OBD diagnostic check showed a P2609 trouble code for the air intake heater circuit. This is often the first sign of heater failure. Those who encounter this code should immediately perform the "Jiggle Test" shown in this video.

The 50-state emissions compliant Monster-Ram intake system not only eliminates this point of failure, but it also provides a mass airflow gain of 88.3% over stock. That's throttle response you can feel and insurance your wallet will appreciate.

Banks Monster-Ram for 2019-current RAM 6.7L
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Banks Monster-Ram for 2013-18 RAM 6.7L
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Banks Monster-Ram for 2007.5-12 RAM 6.7L
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