Category Archives: Updates

Series 50 and 60 Rear Engine Power Take Off Housing

This letter is written to aid in the repair and parts replacement of the REPTO housing The REPTO housing is non-serviceable, except for the yoke, yoke inner and outer seals, and the two input gear hub seals, which are identical to the old style (Federal Mogul) crankshaft seals. When servicing the REPTO housing, the following… Read More »

Series 60 Gear Case Brackets

Detroit Diesel has introduced a product improvement, involving stabilization of the gear case/cover in Freightliner Trucks. This has been done to reduce vibration and extend thrust plate perimeter seal life. Our experience has also shown that in some cases, improving the stiffness in this area has also resulted in stoppage of thrust plate seal leaks.… Read More »

Engine Oils For DDC Four Cycle Closed Crankcase Ventilation Applications

The following engine oils are confirmed to be suitable for use in DDC 4-stroke cycle marine, generator, and other engine applications equipped with a closed crankcase breather system. Multigrade Oils (All DDC 4-Cycle Engines – except Series 2000 marine) Multigrade 15W-40, API CH-4 oils are primary recommendations in all DDC 4-cycle engines. The following oils… Read More »

Turbocharger Cup Plug Field Fix Kit DDC P/N: 23528679

INSTALLATION INSTRUCTIONS On a small number of Series 60/50 wastegate turbochargers there have been reports of the cup plugs coming loose. The symptoms are: Loss of power and lack of turbo boost. If you encounter this condition, do not replace the turbocharger, inspect and replace the wastegate cavity cup plug. The “Cup Plug Field Fix… Read More »