05/14/2026
2019 6.7 Cummins with only 102,000 miles and this grid heater was not only completely clogged with soot, but the heater nut failed. The nut on the bottom side circled in red (already broken off this one) over time weakens from heat and vibration. The only place it can go… is right into the cylinder destroying the piston, head, and possibly worse.
If you’re looking to save yourself thousands in motor work, give us a call and schedule an appointment. We always highly recommend going back together with a BANKS Monster ram intake increasing air flow, and eliminating the grid heater nut.
Millson Diesel, Bowdoin ME
(207)740-5650