554
Primary Chain
Primary Chain Drive System
Primary Chain Drive Systems for Big Twins include 76 or 82
link primary chain, chain shoe adjuster assembly, clutch drum
basket with starter ring gear and steel and fiber clutch plates with
pressure plate assembly. Correct front compensator sprocket
assembly includes all parts necessary for installation, including
sprocket nut. Big Twin 5 Speed Softail models and all pre1985
FLH-FX 4-Speeds require 82 link primary chains; 1980-up FLT-
FXR 5-Speeds require 76 link primary chains.
82 Links 76 Links
Year
18-0106* 18-0110* 1970-84
18-0107* —
1965-69
18-0108* —
1955-64
18-0117
—
1955-64
18-0109
—
1936-54
*Note: Units include compensator front sprocket assembly.
18-0106 1970-84 Type
Primary Hardware
Replica Primary
Chain features
Figure ‘8’ Side
Plates for
reduced weight
on Early models!
Diamond Endless Primary Chains.
VT No. Size
Fits
19-0367 428 x 2 x 82 1936-64 Big Twin 74 and 80, Figure 8
19-0360 428 x 2 x 82 1965-84 Big Twin (Oval)
19-0392 428 x 2 x 80 Special Length
19-0363 35 x 3 x 92 1952-56 K-Model
19-0364 35 x 2 x 96 1938-up Servi-Car
19-0365 35 x 2 x 100 1929-52 Solo
19-0366 428 x 2 x 88 1930-36 VL Side Car
19-0380 428 x 2 x 90 1930-36 VL Solo
19-0361 428 x 2 x 76 1974-06 FLT/FXR
Primary Chain Connector Links are sold each for
size 428 x 2 chain. Fits all Big Twins.
VT No. 19-0377
19-0360
19-0367
19-0364
19-0363
TYK Brand Primary Chains.
VT No. Links Fits
19-0878 76
1979-06 FLT, 1982-94 FXR
19-0876 82
1936-06 FL-FX
19-0877 82
Nickel Plated
19-0934 82
1936-64 FL, 1936-84 EL
19-0933 84
1941-84 FL
19-0371 82
1941-84 FL
19-0941 82
1941-64 FL (York)
19-0845 82
1965-84 Big Twin
19-0588
1936-52 EL
19-0918 96
1937-73 G
19-0876
19-0878
19-0877
19-0934
18-0963
1954-64 Rear Chain Oiler Kit for 1954-64 replaces 63591-
62 to fit on rear of inner primary cover. Kit includes screw.
VT No.
Item
42-0653
Rear Chain Oiler
40-0176
Oil Fitting
40-9983
Oil Drain 1936-57
40-9984
Oil Drain 1958-64
42-0589
Oil Guard
40-0835
Drain Fitting
10-0835
Oil Tank Fittings
42-0653
40-9983
40-9984
40-0835
18-0964
Chrome Primary Drive for 4-Speed Kick Start models includes
chrome 24T motor sprocket, nut, clutch drum, chrome clutch
springs, chrome pressure plate and chrome spring plate. Fits
1941-84 FL and 1971-84 FX.
VT No. Fits
Shaft
18-0963 1955-84 Splined
18-0964 1941-54 Tapered
Rear Chain Oiler Fitting fits 1941-
69 FL, zinc. Fitting is positioned
between the oil pressure gauge and
oil pump fitting.
VT No. 12-1280
19-0941