Fix a major issue in your 6.7L Cummins engine with the 2007-2024 Cummins Killer Grid Heater Upgrade Kit (1041520). Total engine destruction is caused when powering the grid heater, 200 amps pass through a small bolt and nut inside the intake and over time is known to deteriorate and eventually arc and break off. This tiny nut drops into the engine, wreaking havoc on your piston, head, and valves. Don't waste money on expensive upgrades that limit heat and performance. This solution doesn't break the bank, retains full heat flow, and works great in all climates.
 
This kit upgrades that flawed electrical circuit by eliminating the problematic bolt and nut inside the intake while retaining stock functionality of the heater, is cost-effective, and is easy to install.