Front Master Cylinders
264 parts
Harley front master cylinders, rebuild kits and covers in 9/16", 5/8" and 11/16" bore. Doing the whole front brake? See brake lines, calipers, rotors and levers. Free US shipping over $100.
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Out of stock
V-Twin - 26-0608 - Handlebar Master Cylinder 9/16 inch Bore - Fits 2007-2013 Harley-Davidson XL
V-Twin Mfg
$220.00Black handlebar master cylinder assembly has a 9/16" bore. Master cylinder comes assembled with internals and lever. For use with dual disc caliper. Fits:XL 2007-2013Additional Information <$220.00 -
Out of stock
V-Twin - 26-0458 - Black Handlebar Master Cylinder Assembly - Fits 1972-1981 Harley-Davidson XL, FL, FX
V-Twin Mfg
$157.63Master cylinder assembly includes the brake lever, stop light switch, reservoir cover and all internal components. Fits:XL 1972-1981FL 1972-1981FX 1972-1981Additional Information$157.63 -
Out of stock
V-Twin - 26-0457 - Polished Handlebar Master Cylinder Assembly - Fits 1972-1981 Harley-Davidson XL, FL, FX
V-Twin Mfg
$165.24Polished handlebar 3/4" bore master cylinder assembly includes the brake lever, stop light switch, reservoir cover, and all internal components assembled. Fits:XL 1972-1981FL 1972-1981FX...$165.24 -
Out of stock
V-Twin - 26-0456 - Chrome Handlebar Master Cylinder Assembly - Fits 1972-1981 Harley-Davidson XL, FL, FX
V-Twin Mfg
$171.00Master cylinder has a 3/4" bore and includes the brake lever, stop light switch, reservoir cover, and all internal components. Fits:XL 1972-1981FL 1972-1981FX 1972-1981Additional Information$171.00 -
Out of stock
V-Twin - 23-9187 - Handlebar Master Cylinder Cover Chrome
Edart
MSRP: $13.86$13.72V-Twin - 23-9187 - Handlebar Master Cylinder Cover ChromeDescriptionSmooth style master cylinder chrome cover for front or rear master cylinder.Order screws and gasket separately. Fits:FXST...MSRP: $13.86$13.72 -
Out of stock
V-Twin - 23-3021 - Handlebar Master Cylinder Rebuild Kit
Edart
$34.72V-Twin - 23-3021 - Handlebar Master Cylinder Rebuild KitDescriptionRebuild kit rebuilds 5/8" bore front master cylinder for single disc models. Fits:FXST 1985-1995XL 1985-1995FLST 1986-1995FXD...$34.72 -
Out of stock
V-Twin - 23-1714 - Handlebar Master Cylinder Rebuild Kit
Edart
$24.83V-Twin - 23-1714 - Handlebar Master Cylinder Rebuild KitDescriptionRebuild kit rebuilds 9/16" bore front master cylinder for use on single disc models. Fits:FXD 1996-2017FLT 1996-2007FLST 1996-2014XL...$24.83 -
Out of stock
V-Twin - 23-1666 - Brake Master Cylinder Cover Kit Chrome - Fits 2019-2020 Harley-Davidson FXST, FLST
V-Twin Mfg
$37.42Brake master cylinder cover kit features a chrome finish. Fits:FXST 2019-2020FLST 2019-2020Additional Information OEM No.41700479$37.42 -
Out of stock
V-Twin - 23-0857 - Handlebar Master Cylinder Rebuild Kit
Edart
MSRP: $23.14$21.63V-Twin - 23-0857 - Handlebar Master Cylinder Rebuild KitDescription15MM rebuild kit contains necessary parts for rebuilding the handlebar master cylinder. Fits:FLHX 2008-2017 dual discFLHT 2008-2017...MSRP: $23.14$21.63 -
Out of stock
Drag Specialties - DS272191 - Hydraulic Stop Switch
Drag Specialties
$21.35Drag Specialties - DS272191 - Hydraulic Stop SwitchFeaturesSpade-type switch features Bakelite insulators, heavy-duty contacts and high-conductivity brass terminalsReplacement Part for OEM...$21.35 -
Out of stock
Drag Specialties - 06100504 - Brake Master Cylinder - 5/8" - Chrome
Drag Specialties
$312.65Drag Specialties - 06100504 - Brake Master Cylinder - 5/8" - Chrome Features Include lever and clamp half Compatible with DOT 4 or 5 brake fluid Master cylinders work with all 1" or 1-1/4"...$312.65 -
Out of stock
Performance Machine (Pm) - 0062-2520-SMB - Brake Master Cylinder - Radial - 9/16" - Black Ops
Performance Machine
$746.95Performance Machine (Pm) - 0062-2520-SMB - Brake Master Cylinder - Radial - 9/16" - Black OpsFeaturesCNC-machined one-piece body with refined internals for optimal performanceRace driven master...$746.95 -
Out of stock
Goodridge - PMCHD-027C - ABS Controller to Front Master Cylinder Fitting - Front - FLH/FLT '14-'23 ABS Models
Goodridge
MSRP: $75.04$73.95Goodridge - PMCHD-027C - ABS Controller to Front Master Cylinder Fitting - Front - FLH/FLT '14-'23 ABS ModelsFeaturesFittings designed for Goodridge universal brake linesSpecsMSRP: $75.04$73.95 -
Out of stock
Joker Machine - 08-01FN - Master Cylinder Cover - Finned - Chrome
Joker Machine
$65.95Joker Machine - 08-01FN - Master Cylinder Cover - Finned - ChromeFeaturesReplace that stock cast cover and add some billet style to your stock master cylinder assemblyMade in the U.S.A.Specs$65.95 -
Out of stock
Joker Machine - 10-381B - Front Brake Master Cylinder Cover - Joker Logo - Black
Joker Machine
$54.95Joker Machine - 10-381B - Front Brake Master Cylinder Cover - Joker Logo - BlackFeaturesReplace that stock cast cover and add some billet style to your stock master cylinder assemblyFully...$54.95 -
Out of stock
Joker Machine - 951019-3 - Front Brake Master Cylinder Cover - Finned - Chrome
Joker Machine
$65.95Joker Machine - 951019-3 - Front Brake Master Cylinder Cover - Finned - ChromeFeaturesReplace that stock cast cover and add some billet style to your stock master cylinder assemblyFully CNC-machined...$65.95 -
Out of stock
Covingtons - C3076-B - Master Cylinder Lid - Brake - Front - Diamondback - Black
Covington's Customs
$90.95Covingtons - C3076-B - Master Cylinder Lid - Brake - Front - Diamondback - BlackFeaturesCNC-machined billet aluminumInclude new mounting hardwareMade in the U.S.A.Specs$90.95 -
Out of stock
Performance Machine (Pm) - 0062-2910-SMB - Brake Master Cylinder - 11/16" - Black Ops
Performance Machine
$461.95Performance Machine (Pm) - 0062-2910-SMB - Brake Master Cylinder - 11/16" - Black OpsFeaturesCNC-machined in billet aluminumHandlebar switch housings and brake light switches are not included and...$461.95 -
Out of stock
Performance Machine (Pm) - 0062-2910-CH - Brake Master Cylinder - 11/16" - Chrome
Performance Machine
$461.95Performance Machine (Pm) - 0062-2910-CH - Brake Master Cylinder - 11/16" - ChromeFeaturesCNC-machined in billet aluminumHandlebar switch housings and brake light switches are not included and must be...$461.95 -
Out of stock
Performance Machine (Pm) - 0062-2910-BM - Brake Master Cylinder - 11/16" - Contrast Cut
Performance Machine
$461.95Performance Machine (Pm) - 0062-2910-BM - Brake Master Cylinder - 11/16" - Contrast CutFeaturesCNC-machined in billet aluminumHandlebar switch housings and brake light switches are not included and...$461.95 -
Out of stock
Performance Machine (Pm) - 0062-2510-BM - Brake Master Cylinder - 9/16" - Contrast Cut
Performance Machine
$461.95Performance Machine (Pm) - 0062-2510-BM - Brake Master Cylinder - 9/16" - Contrast CutFeaturesCNC-machined in billet aluminumHandlebar switch housings and brake light switches are not included and...$461.95 -
Out of stock
Drag Specialties - Front Master Cylinder Repair Kit fits '08-'23 Touring & '09-'13 H-D FL Trike, 15mm bore (OEM #42862-06)
Drag Specialties
$23.27Drag Specialties - Front Master Cylinder Repair Kit fits '08-'23 Touring & '09-'13 H-D FL Trike, 15mm bore (OEM #42862-06) Features: Meet or exceed OEM specifications Fitment$23.27 -
Out of stock
Drag Specialties - Front Master Cylinder Repair Kit fits '82-'85 Big Twin, '82-'E85 Sportster, 3/4” bore (OEM #45042-82, 45063-82)
Drag Specialties
$21.15Drag Specialties - Front Master Cylinder Repair Kit fits '82-'85 Big Twin, '82-'E85 Sportster, 3/4” bore (OEM #45042-82, 45063-82) Features: Meet or exceed OEM specifications Fitment$21.15Out of stock
Drag Specialties - Front Master Cylinder Repair Kit fits '86-'95 Sportster, 5/8” bore (OEM #45072-87)
Drag Specialties
$20.09Drag Specialties - Front Master Cylinder Repair Kit fits '86-'95 Sportster, 5/8” bore (OEM #45072-87) Features: Meet or exceed OEM specifications Fitment$20.09
Harley Front Master Cylinders, Rebuild Kits and Covers
The master cylinder decides how your front brake feels at the lever. Replace a leaking one, rebuild the one you have, or clean up the bars with a new assembly. We stock front master cylinders from Drag Specialties, V-Twin Mfg, Performance Machine, Joker Machine, GMA and Hawg Halters.
Match the Bore to Your Brakes
- 9/16" bore: stock single disc front ends, '96–'17
- 11/16" bore: stock dual disc front ends, '96–'17
- 5/8" and other sizes: in the listings for custom setups
The wrong bore gives you a lever that's rock hard or one that comes back to the grip, so check it before you order.
What's Here
- Complete assemblies: chrome and black, stock style and cut down
- Rebuild kits: by year and bore
- Covers: stock replacement and custom
- Hand lever assemblies: old school master cylinder and lever sets for choppers and bobbers
Finish the front brake with brake lines, brake calipers, brake rotors and levers. For the back, see rear master cylinders, or shop all Harley brakes.
Not Sure It Fits?
Year, bore and single or dual disc all matter, and plenty of master cylinders look the same but aren't. If you can't tell whether something fits your bike, hit us up with your year and model and we'll check it before you order.