Ram EcoDiesel

Transmission Ratios

Cummins FAQ

Additional Resources


Featured Cummins Tech:

Ram 3.0L EcoDiesel - FCA's Ram Truck Division began offering the 3.0L EcoDiesel V-6 in Ram 1500 pickup models in 2014. The engine became an instant success, despite disappointment that a Cummins option was turned down in favor of the Italian V-6.

Nissan Frontier Diesel Runner - While a diesel powered Nissan Titan is official, there's been no confirmation in a diesel option for the mid-size Frontier. However, a 2.8L Cummins powered concept appeared at the 2014 Chicago auto Show.

2.8L Cummins Specs - Originally part of a partnership between Cummins, Nissan, and the DOE in developing a fuel efficient Nissan Titan, the 2.8L Cummins just may show up as a future option in the smaller, mid-size Nissan Frontier pickup line.

4BT (3.9L) Cummins - Based on the same architecture as the original 6BT, the 4 cylinder 4BT Cummins is a popular choice for engine swaps and diesel conversions.

53 Block Casting - Information on the infamous "53" block castings of many 1999 - 2001 24v Cummins, which are prone to cracking around the water jackets.

Killer Dowel Pin (KDP) - The 12v Cummins (6BT) Achilles heel is the KDP, a small dowel pin used to align the timing gear housing during initial assembly.

Ram Transmission Ratios & Tech - Transmission ratios and information for all transmission every factory installed behind the 5.9/6.7 Cummins.

Cummins Performance Tech - Looking for more horsepower, torque, and fuel economy from your 5.9L or 6.7L Cummins? Here's a good start.

Cummins Turbodiesel Buyers Guide - Overview of Dodge/Ram pickup generations and what to look for when buying used.

4.5L QSB - Could the QSB4.5 Cummins be right for your engine swap or diesel conversion? Get dimensions and quick specs here.

5.9L vs 6.7L Cummins - Side by side comparison of the 5.9L (12v & 24v) and 6.7L Cummins . See how the originals stack up against today's B series.

HP & Torque by Model Year - Horsepower and torque of every model year Cummins (5.9L and 6.7L) to date, broke down by application.