Adjustable SPRING SET for 1936 - 1980 Big Twin Seat "Pogo" Plunger
H-D #51774-31, 51775-31, 51777-30, 51778-30, 51780-30
Special - 7 Piece Mixed SPRING Set - Larger Diameter OD Springs as used on Big Twins
for 1936 - 1980 Harley Big Twin "Pogo" SEAT POST PLUNGERS
Special Spring Set includes 3 Springs for Inside Plunger (51778-30 & 51780-30)
for Rider Weight Adjustment - under 200 to over 250 pound Riders
Diameter of these Springs fits Knuckle, UL, Pan & Shovel Pogos with Standard 15-7/8" or Special 16-7/8" Long Spring Rod
Set includes Fitting Instructions & Diagram (see Chart)
Description | H-D #51774-31, 51775-31, 51777-30, 51778-30, 51780-30 |
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