Harley Davidson TwinCam 88 1999-2006 Oil Filter Cross Reference
Replacement oil filters for HARLEY-DAVIDSON 63731-99A:
| Brand | Model |
|---|---|
| AC-Delco | PF1787 |
| AMSOIL | EAO33 |
| CARQUEST | 85215 |
| DELPHI | FX1017 |
| Fram Chrome (I use these) | PH6065A |
| Fram | PH6022 |
| HARLEY-DAVIDSON | 63731-99 |
| HARLEY-DAVIDSON | 63731-99A |
| HARLEY-DAVIDSON Chrome | 63798-99A |
| K & N | KN-171B |
| NAPA | 1215 |
| Purolator | ML16822 |
| STP | S3614 |
| WARNER | PH7017 |
| Wix | 51215 |
My notes below are for a 2003 FXDWG, but should be the same for the rest of the twin cam 88s…
Oh and both primary and engine take 20W50 synthetic oil per the shop manual, however it is very expensive (from what I see about $11 a quart at the major auto parts stores). However, I have been using Mobile one synthetic 15W50 in both for years with no problems at all. And last I checked it was $22 a gallon at WalMart. :)
3 quarts in Engine
1 quart in Primary – 26oz goes in… :)
I also use Mobil One 75W90 gear oil in the transmission…
The transmission takes 20-24 oz according to the shop manual.