DNR Customs Cummins Flex Plate install Kit (1994-2018 5.9/67L Cummins)
Fits: Cummins 12V (1994-1998 5.9L Cummins) • Cummins 24V (1998.5-2002 5.9L Cummins) • Cummins 6.7L (2007.5-2012 Cummins) • Cummins 6.7L (2013-2018 Cummins) • Cummins CR (2003-2007 5.9L Cummins)
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the DNR Customs Cummins Flex Plate install Kit (1994-2018 5.9/67L Cummins) you will earn 120 DIESEL DOLLARS in your SDS Fuel Tank!
This DNR Customs kit secures the flex plate to the crank on a 1994-2018 5.9L or 6.7L Cummins in the Dodge Ram 2500/3500 and Ram 2500/3500. It is built for high-performance diesels where the flex plate keeps coming loose, and DNR has tried and tested it above 2000rwhp.
Fitment
The kit works on the factory 94-18 Cummins crank, which covers these engines:
- 1994-1998 5.9L 12-valve Cummins
- 1998.5-2002 5.9L 24-valve Cummins
- 2003-2007 5.9L common-rail Cummins
- 2007.5-2012 6.7L Cummins
- 2013-2018 6.7L Cummins
Through 2002 the Cummins came only in the Dodge Ram 2500 and 3500; no second-gen Ram 1500 ever had one. Because the kit is designed around the factory crank, aftermarket cranks and 2019 and later 6.7L engines are not covered by this listing. You will have to check thread depth before install, so read the installation notes below. Verify fitment by VIN or call us, and find more parts in our Cummins hub.
Why this part
On an automatic, the flex plate is the link between the crank and the torque converter, so every bit of torque the engine makes passes through the joint where it bolts to the crank. On a high-performance diesel, keeping that joint tight is a fight. DNR Customs struggled with flex plates coming loose for years before settling on this combination and technique, and it is the only thing that has kept theirs tight.
They put it together as a complete package to secure the flex plate to the crank, and it has been tried and tested above 2000rwhp. If you are making big power on a 5.9L or 6.7L and the flex plate has been the weak link, this is the setup DNR trusts on its own builds.
What you get
- Everything needed to secure the flex plate to the crank, per DNR Customs
- Instructions to make sure your install is done correctly
DNR does not break out each piece in its description. If you need the exact contents before you order, call us and ask.
Installation notes
You will have to check thread depth in the crank prior to install. Do it before anything else, then follow the included instructions step by step. DNR credits the combination and the technique together for keeping the flex plate tight, so the method matters as much as the hardware. If you would rather have it done for you, we install what we sell at our shop in Wildwood, FL.
About DNR Customs
DNR Customs built this kit out of its own experience with high-horsepower Cummins trucks. After years of fighting flex plates that would not stay put, this is the package they rely on, proven above 2000rwhp.
Frequently asked questions
Do I need this on a stock truck?
DNR built it for high-performance diesels, where a loose flex plate was the recurring problem. If your truck is stock or close to it, call us and we will talk through whether it makes sense for your build.
Will it fit a 2019 or newer 6.7L?
Not per this listing. The kit is for the factory 94-18 Cummins crank, so 2019 and later engines and aftermarket cranks fall outside what DNR lists.
Why check thread depth first?
DNR says you will have to check thread depth prior to install. Do it first, before any hardware goes in, and the included instructions take it from there.
Questions on fitment? Call the shop at the number in the header. We install everything we sell.
Diesel Dollars is Southern Diesel Supply's Loyalty Program. Purchasing with Us Earns you 1 Point for every 1 Dollar spent to use for future buys!
By ordering the DNR Customs Cummins Flex Plate install Kit (1994-2018 5.9/67L Cummins) you will earn 120 DIESEL DOLLARS in your SDS Fuel Tank!