Rear Master Cylinders
23-1735
23-0750,23-0752
Kelsey Type Master Cylinder. Alloy style for 1980-up FX-XL-FL
models complete with internals.
VT No. Price OEM Type Fits
23-1735
$83.00 41754-79A Chrome 1979-84 FLH
23-1772
$77.00 41754-79A Alloy As Above
23-0769
$85.00 42453-80A Chrome 1980-83 FXWG
        1979-84 FXS
23-9179
$75.00 42453-80A Polish As Above
Wagner Style Master Cylinder. Drum Type for 1958-72, disc
type 1973-E79. Units are assembled with internals, includes
cap and boot.
VT No. Price OEM Type Finish
23-0750
$78.00 41761-58 Drum Painted
23-0752
$81.00
Drum Chrome
23-0751
$75.00 41761-78 Disc Painted
23-0753
$91.00
Disc Chrome
23-3004
Chrome Billet Master Cylinders feature
Wagner or Kelsey Hayes style
mount holes 5/8” bore.
VT No. Price OEM Type
23-3003
$92.00 Kelsey Hayes Inline
23-3004
$93.00 Wagner Offset
23-0878
$30.00 Rebuild Kit  
23-0735
Master Cylinder Caps and Cover.
VT No. Price OEM Fits
23-0734
$14.00 41765-58 Chrome Cap
23-0735
$14.00 41765-58 Black Cap
15-0202
$12.00 41766-58 Top Gasket, 10 pk
37-8470*
$16.00
Cap Cover
*Note: Fits over existing cap secured by set
screw.
23-9194,23-3001
37-8470
Chrome Rear Master Cylinder Covers.
VT No. Price Fits
42-0315
$24.00 1958-79 FLH
42-0316
$20.00 1979-84 FLH
42-0315,42-0316
GMA Master Cylinders are CNC machined from
aircraft heat treated aluminum alloy. Bore 5/8 which
produces pressure to work in conjunction with dual piston GMA
calipers.
VT No. Price Type
23-3001
N/A Replaces Wagner 1958-79 type
23-3002
N/A Replaces Kelsey Hayes 1979-82 type
23-1720
$22.00 Rebuild Kit
23-9194
N/A Reservoir
23-1718
23-1720
Rear Master Cylinder Rebuilds
VT No. Price OEM Fits
23-1718
$22.00 41762-58A 1958-79 Big Twin
23-1961
$20.00 Deluxe Kit 1958-79 Big Twin
23-1717
$20.00 42374-77B 1979-84 FL, 80-86 FLT
23-1720
$22.00 42374-82A 1983-85 FX 4-speed
      1984-86 FXST-FLST
37-6366
Master Cylinder Mounting Stud replaces
42301-79 on 1979-85 FL models.
VT No. Price
37-6366
$19.00
28-0501,28-0502,28-0503,28-0504,28-0505,28-1955
Rear Master Cylinder Boots are sold each.
VT No. Price OEM Fits
28-0501
$8.00 41764-58 1958-69 FL
28-0502
$7.00 41764-70 1970-78 FL-FX
28-0503
$8.00 41764-79 1979-84 FLH, 1978-82 FX
28-0504
$10.00 42326-82 1983-up FX
28-0505
$10.00 40922-79 1979-86 FLT
28-1955
$24.00 41764-58 41764-70 assortment of 5 each
23-0115,23-0116,23-0117,23-0118,23-0119,23-0124,23-0122
Brake Plunger Assemblies.
VT No. Price # OEM Finish Fits
23-0115
$25.00 A 41770-58 Chrome 1958-69 FL
23-0116
$22.00 B 42333-70 Chrome 1970-79 FL
23-0117
$22.00 C 42333-79 Chrome 1979-84 FLH
23-0118
$33.00 D 40923-79 Chrome 1979-81 FLT
23-0119
$30.00 E 42257-72 Chrome 1972-79 FX
23-0124
$35.00 E 42257-79 Chrome 1979-82 FX
23-0122
$24.00 F 42330-72 Chrome 1972-82 FX Clevis only
Thread Chart
OEM Rear Master Cylinders

Kelsey-Hayes. L1979-84 FL, FX; 80-85 FXWG, FLT
3/8-24 Inverted Flare
Wagner-Lockheed. 58-E79 FL, FX
3/8-24 Inverted Flare
(Girling type) 83-E87 FX, 1982-E87 FXR
3/8”-24 Inverted Flare (to caliper)
1/8” NPT (to reservoir master cylinder)
All L1987-2002 BT , TC/B, XL
3/8”-24 banjo bolt
All H-D Brake Tees
3/8”-24 Inverted Flare (brake line)
1/8 NPT (brake light switch)
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