Engine Overview

The 6B 5.9-Liter Cummins is used in many applications including step vans, uniform and commercial delivery vehicles. The 6B Cummins Engines are one of the most widely used Cummins engine there is. These Cummins 6B Engines earned the name  work horse and for good reason, many of these engines reach the 1,000,000 milea mark in Dodge & Freightliner applications. 
 

NPD utilizes torque plating methods for boring and honing to ensure block straightness, which reduces break-in time and crankcase pressure on these 6B Cummins Engines. In addition, NPD uses OEM or equivalent pistons, rings, bearings, valves and gaskets, 
making sure that this engine will stand the test of time.

Dynomometer Testing

All 6B Cummins Complete Drop-In engines are 100% dyno tested prior to shipment. Computer controls ensure that each 
engine dyno test is conducted under standard, repeatable settings. Every engine is run through a warm up cycle; three separate cruise segments simulating light, medium and heavy throttle conditions; maximum torque and horsepower tests; both high and low idle tests; and a black light leak detection test with dyed oil, coolant and fuel.