Cummins has announced that will unveil a 4.2-liter V6 and 5.6-liter clean diesel engines at SEMA Auto Show. The new engines will be featured in a custom Wrangler Unlimited from the Mopar Skunkwerkes group.

The custom Jeep will be powered by a 4.3 liter diesel engine and is code named 50 JK. The hardtop Jeep features custom bumpers, 4-inch lift, 35-inch tires, carbon-fiber hood, Dana 44 axles front and rear, GPS and full saddle leather.

All totaled, Chrysler will have 65 vehicles on display at SEMA.