MEASUREMENTS:
117DN-50 diameter is 3.125 in = 7.9375 cm
New Dura-Drag™ Design with Lubricant.
DRAG MATERIAL CHANGES
Part number 117D-50 was manufactured with the original HT100™ dry drag washer material.
Part Number 117D-50 has been replaced by the part number 117DN-50 Dura-Drag™ series washer.
DESIGN CHANGES EARLY RUN 50, 50W reels PINION GEAR DRIVE PLATE SPLINES CHANGED!
HAD THE OLDER 9 splines on the 13- pinion where it connects into the drive plate.
MODERN pinions have 8 splines on the end
MODERN drive plate assemblies like 117dn- 117dn also have 8 splines where the pinion seats
COUNT SPLINES FOR COMPATIBILITY
THIS IS PART OF A VERY OLD DESIGN CHANGE
SEE MORE: https://www.mysticparts.com/PennParts/Design-Change-DRAG-SYSTEMS-INTERNATIONAL-50-50W-80-80W-80S-80SW-80ST-80STW
Most reels have probably already been changed over to newer pinion/drive plate over time with servicing, but you may run across the old ones if they haven't been touched.
IMPORTANT INFO: PENN replaced the drag washer and drive plates for the newer international series reels with a combined drive plate. Penn did not manufacture a combined drive plate specifically for the older 80, 80W, 80S or 80SW reels.
IF YOU NEED THE DRAG WASHERS for the 80, 80W, 80S or 80SW: Our parts dept. at www.mysticparts.com has found that:
The 117DN-50 drive plate works as a substitute for the 117-80 plate with 6A-50 washer used on the 80 and 80W
The 117N-80ST drive plate works as a substitute for the 117-80S plate with 6A-50 washer used on the 80S and 80SW.
The 117AN-80T drive plate works as a substitute for the 117A-80 plate with 6A-50 washer, which is used on the 80, 80W, 80S and 80SW. (The outside diameter is about 1/8" smaller but it will function).