$1.00
This grease fittings are for the bearings and bushings located in the rocker arm cam and crank.
Western part:
3598 000 004 (¼-28 Straight) 3598 000 007 (¼-28 45 deg) 3598 000 002 (1/8 NPT 45 deg)
Grease Fitting 1/4"-28 45 degree, Grease Fitting 1/4"-28 Straight, Grease Fitting 1/8" NPT 45 degree