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225
BIG TWIN
Chain Tensioner Parts fits Big Twin models.
VT No.  #  OEM 
Type 
Years
18-8314   
All 
Complete Kit 
1984-2000
18-8320   
All 
Complete Kit 
2001-2005
18-3217   
B-C-F-G  Hardware Kit
37-9030  A  1783 
Screw, 10 pack
37-8801  B  3862B 
Bolt, 5 pack
18-3682*  C  4401W 
Hex Bolt, each
28-0225  E  39976-65B Nylon Pad 
1965-2000
28-0568   
Red 
Nylon Pad 
1965-2000
28-0234  E  39976-01  Nylon Pad 
2001-2005
17-0915  G  39996-65  Lock, 10 pack
18-3218  H  39990-65  Shoe Mount Bracket  1965-2000
18-3219 F  39993-65  Plate
18-3622  I  39992-65A Nut and
 
J  39998-65  Anchor Plate
18-3634  J        — 
Anchor Plate with carriage bolt (K)
37-8802  K  5444 
Carriage Bolt, 5 pack
18-3223  I  39992-65A Nut Only
*Note: Early style hex bolt, screws into 18-3223 nut.
18-8314
Primary Chain
Chain Tensioner
28-0568
York Big Twin Hydraulic Primary Chain Tensionator
TM
 
features a hydraulic valve which controls the motion of the 
submerged piston which constantly keeps the chain in tension 
for 1965-84 FL, 1971-84 FX, 1984-06 FXST, FLST, 1984-2006 
FLT, 1984-94 FXR, 1991-05 FXD.
VT No.   Item
18-0120 Chain Tensioner
18-0128 Chain Tensioner Shoe
York Chain Adjuster Kits feature automatic self adjusting by 
use of spring loaded shoe.
VT No.   Year
18-0580 1965-00
18-0581 2001-06
18-0582  2007-17 FXST, FXD
 
2007-16 FLT, FL, 2007-up FLST
18-3705  2016-up M-8
18-0581 Installed
28-0225
18-8314
Manual Primary Chain Adjuster Kit 
for all 2006-up FXD, FLT and 2007-up 
FXST, FLST with stock type spring load-
ed primary adjuster assembly allows 
precise adjustment of primary chain and 
creates less drag and loss of power like 
stock spring loaded assembly.
VT No. 18-8328
18-8328
18-0582
18-3705
Primary Chain. Made from select steel alloys that are light 
yet provide maximum strength. These primary chain has shot-
peened, heavy-duty side plates and solid roller construction. 
TYK 
Diamond Fits 
Links
19-0878  19-0361  1979-06 FLT 
76
19-0876       — 
1980-06 FXWG and FXST 
82
19-0933       — 
1980-06 FXWG and FXST 
84
     — 
19-0360  1986-06 FXST, 1991-05 FXD 
82
19-0835  19-0786  2007-up FXST 
92
19-0836  19-0583  2007-up FLT 
86
19-0837  19-0368  1994-06 FLT 
74
19-0933
19-0836
19-0878
19-0876
18-8320
18-0581
18-0580
19-0835
19-0837