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BIG TWIN
Big Twin Clutch Pack
Pro-Lock Clutch Kit features a pos-
itive engaging ball ramp activation 
system, this applies extra pressure to 
the clutch plates and prevents clutch 
slippage without any increase on 
the lever pull effort by changing the 
fulcrum point. Fits straight into the 
stock clutch basket and behind the 
stock primary cover. Replaces stock 
pressure plate, diaphragm spring and 
spring retainer. Fits 1998-17 FXST, 
FLST and 1998-16 FLT.
VT No. 18-0002
20-0550
York Pro-Clutch
York Pro-Clutch Pack Kits include clutch hub with bearing, 
clutch discs (friction and steel), diaphragm spring, spring retain-
er, pressure plate and four shoulder bolts. 1984-up kits utilize 
existing clutch basket, supplies a clutch hub to allow use of 
clutch plates that increase surface area by 100% to reduce 
slipping.
Kits Year 
Plate
20-0549  1984-89  
18-0544
20-0550 1990-97 
18-0545
20-0769 1998-06
20-0770  2007-10 w/cable clutch only
20-0771  2011-16 w/cable clutch only
20-0772  2011-16 with cable clutch only
20-0773 2017-up
16-0310  Puller Tool
16-0310
BDL Competitor Clutch Kit features 
9 springs and shoulder bolts for simple 
adjustment, large 40mm double row 
hub bearing, polished pressure plate 
and Kevlar clutch.
VT No.  Fits
20-0628 1990-97 Evolution Big Twin with Chain Primary Drive 
Replacement Friction/Steel Sets for Above 
VT No.  Fits
18-0548 20-0628
20-0549
Variable Clutch with Spring includes spring and a stronger 
clutch engagement as revs increase. Fits 1998-17 FXST, 1998-
17 FLST, 1998-15 FLT, 1998-2017 FXD. Fits 96" cubic inch.
VT No. 18-0674 
18-0674
20-0769
20-0771
20-0772
20-0773
20-0770
York Posilock Clutch Kit fits 
1998-06 Big Twin featuring posi-
tive engaging ball ramp activation.
VT No. 18-0780
2017-up Softail Clutch
VT No.  #  OEM 
Description
12-9914  8  37496-90 
Mainshaft Nut
18-8257  9  37903-90 
Release Plate
18-8258  10  37904-90 
External Retaining Ring
18-8261 11  37909-90 
Internal Retaining Ring
18-0264  12  37000034 
Damper Spring
18-0265  13  37000036 
Damper Seat Spring
12-0638 14 37000168  Bearing
12-0639  15  37000169 
Internal Retaining Ring
12-0267 16 37000219  Seat
18-0671 17 37000239  Hub
18-0271  18  37000240 
Pressure Plate
18-0263  19  37000033 
Stopper Plate Spring
12-0784  20  37000258 
Clutch Spring Dish Kit, 2017-22
18-0269  21  37000382 
Clutch Spring Dish Kit, 2023-up
18-0270  22  3700270A 
Coil Spring
12-0640 23 37000307  Bolt
18-0272 24  
Drum