Mike,
Here is the best post I've seen on the oil filter question yet... .
_____________________________________________
posted 02-09-2001 04:37 PM
As an update to Mick's post, let's go back to Issue 30, page 55, for details on the
24-valve oil filter progression. We start with a reference back to Issue 26, page 28, and a discussion of the details of the thicker filter shell and threaded nut assembly/thicker rubber sealing gasket. With the hardware changes, the Mopar/Fleetguard part numbers were superceded (new part numbers LF3885/5016477AA). Then came the change to the composition of the rubber sealing gasket. Again, the Mopar and Fleetguard part numbers were superceded; new number were LF3935/501647AB.
The latest change to the oil filter is applicable for all 24-valve engines and affects the rubber sealing gasket retainer. The revised gasket retainer will lower the torque necessary to remove the filter.
The gasket was previously wedged into its retainer. When the filter was installed, the
gasket would rub against the filter head as it was turned into place. This caused excess
removal torque. The revised retainer allows the gasket to float in the retainer and thus
lowers the removal torque. The revised part numbers are LF3959/5016547AC.
To be up to date and "technically correct," the number you should use for all Cummins
engines in Dodge applications is Mopar 5016547AC.
As we noted, the 5016547AC crosses over to the LF3959. Also, as noted in the Geno's
Garage catalog, they have a large quantity of the LF3959 filters on order, but are waiting
on delivery from Fleetguard. Fleetguard currently fills orders with the LF3935 and likely will continue to do so until the supply of LF3935 is exhausted. Please note that the Fleetguard factory is located in Cookeville, Tennessee - possibly the location Alan Reagan mentioned in the earlier post?
If a customer wants the benefit of the internal Stratapore filter media, the LF3959's Stratapore crossover equivalent continues to be the LF3894.
Note that unlike the supercession of numbers LF3885/LF3935/LF3959, 501647AA/AB/AC,
the part number LF3894 has not changed as time has passed. Rather than change the
part number, Fleetguard made the effective rubber seal composition and seal retainer
revision without changing the part number of the LF3894. Thus, unless Fleetguard makes
an unexpected part number supercession, LF3894 is the correct Stratapore filter for your 24-valve engine or 24-valve HO engine.
To be "technically correct," however, that is not the right filter. 5016547AC is the correct filter.
Clear as mud?
Robert Patton
TDR Editor
_____________________________________________
Mick
<font color=blue>
------------------
2001. 5 2500 ETH/DEE, QuadCab, 4X4, SB, LSD, 3. 54, SLT+, Sport, Intense Blue PC/Agate, Tow Package, Camper Package, 'DC' Bed Cover, Sliding rear window. Totally STOCK!!
On Order 4/28/00
Arrived 9/14/00 !! 
#ad
My Truck
[This message has been edited by Mick2500 (edited 03-31-2001). ]
Attention: TDR Forum Junkies 
#ad
