Featured Cummins & Dodge/Ram Diesel Tech

2018 Ram 2500 HD
2018 Diesel Guide - Cummins, Power Stroke, Duramax Diesels

Your 2018 diesel guide, comparing the capabilities of Ram, Ford, GMC, and Chevrolet trucks for the 2018 model year in addition to identifying "Best-in-class" for various categories.

Aisin AS69RC, 6.7L Cummins combination

Aisin AS69RC Transmission Specs

The medium duty Aisin AS69RC six speed automatic transmission is available in Ram 3500 models equipped with the optional High Output 6.7L Cummins Turbodiesel, which peaks at 930 lb-ft of torque for the 2018 model year.

Chrysler 68RFE transmission
Chrysler 68RFE Automatic Transmission Specs and Ratios

Chrysler's 68RFE comes standard in all 6.7L Cummins equipped Ram Trucks (non-H.O.). The six speed automatic transmission is one of three transmission options for the current Ram 2500/3500 HD.

Mercedez G65 manual transmission
Mercedes G56 6 Speed Manual Transmission Specs and Ratios

Ram Trucks remains the last of the Big 3 automakers to offer a manual transmission in their heavy duty trucks. For owners who prefer a manual trans, the Mercedes G56 is available in both 2500 and 3500 models. However, it comes at the price of a severely detuned 6.7L Cummins.

Ram 3500 HD
6.7L Cummins I-6 vs 6.7L Power Stroke V-8

While the engine's share the same nominal displacement, that is where the similarities end between the 6.7L Cummins I-6 and 6.7L Ford V-8.

Dodge Magnum V-10
Dodge 8.0L Magnum V-10 vs Cummins Turbodiesel

Dodge 8.0L Magnum V-10 engine specs and a comparison between the V-10 and Cummins turbodiesel. The V-10 was available through the 2003 model year before being replaced by the Hemi engine in Ram 2500 and 3500 models.

Cummins 4BT engine
Cummins 4BT Engine Specs

Cummins 4BT specifications, history, and information. The 4BT is more-or-less a 4 cylinder version of the 6BT Cummins, featuring the same bore and stroke but with 2 absent cylinders. The engine is widely popular in diesel conversions, particularly on smaller vehicles such as 1/2 ton pickups, Jeeps, and custom crawlers.

Ram 1500 EcoDiesel
Ram 1500 EcoDiesel Specs

Introduced in 2014, the EcoDiesel powered Ram 1500 features superior fuel economy without sacrificing the capability that is to be expected from a fullsize pickup.

Ram 1500 EcoDiesel badge
TorqueFlite 8 Eight Speed Automatic Transmission

Eight forward speeds contribute to the EcoDiesel's impressive fuel economy. Designed by ZF, the TorqueFlite 8 transmission is manufactured by Chrysler under a licensing agreement.

6.7L Cummins ISB

I-6 Turbodiesel

385 hp @ 2,800 rpm

930 lb-ft @ 1,700 rpm

5.9L Cummins ISB

I-6 Turbodiesel

325 hp @ 2,900 rpm

610 lb-ft @ 1,600 rpm

5.9L Cummins 6BT

I-6 Turbodiesel

215 hp @ 2,500 rpm

440 lb-ft @ 1,600 rpm

6.7L Cummins Diesel Specs 5.9L Cummins ISB Specs (24v) 6BT Cummins Specs (5.9L 12v)
Mercedes G56 6 Speed Manual Transmission NV5600 Six Speed Tech GETRAG 5 Speed Tech
Cummins Maintenance Schedule Chrysler 48RE Automatic Transmission NV4500 5 Speed Tech
Aisin AS68RC Transmission Tech Cummins Heater Grid Delete Chrysler 47RE/47RH Transmissions