Harley Rear Master Cylinders and Parts
Harley-Davidson Rear Master Cylinders & Parts at JJ Motorsports
Upgrade or rebuild your Harley’s rear brake master cylinder with premium assemblies and kits from JJ Motorsports, featuring chrome and black finishes for precise feel and reliable performance on Sportster XL, Softail, Dyna, and Touring models. These high-quality components restore crisp rear braking and custom style.
Shop Drag Specialties and Accutronix rear master cylinders for proven durability. Explore related categories such as Harley braking for pads and lines, or Harley for foot controls and pegs to complete your brake setup.
Top Harley-Davidson Rear Master Cylinders & Parts
- Drag Specialties Rear Master Cylinder XL 14+ Chrome 78073C – Chrome rear master cylinder for 2014+ Sportster; direct bolt-on with clean factory look.
- Drag Specialties Master Cylinder Rear 148004-BC422 – Black rear master cylinder assembly; fits Softail and Dyna with smooth operation.
- Accutronix Rear Master Cylinder Assembly MC627-C – Billet chrome rear master cylinder; custom styling with superior pressure delivery.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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DRAG SPECIALTIES Rear Master Cylinder Kit - Black 62014
DRAG SPECIALTIES
$227.80If you're building a custom rear brake system or working with tight chassis configurations, this master cylinder delivers the control and reliability you need without compromising your design. The 14mm bore strikes the right balance between modulation...17310610- SKU:
- 17310610
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- MINI
- PRODUCT NAME:
- MASTER CYLINDER
- BORE SIZE IMPERIAL:
- 9/16'
- COLOR/FINISH:
- ANODIZED
- STYLE:
- CUSTOM
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
$227.80 -
DRAG SPECIALTIES Rear Master Cylinder Repair Kit - 14mm 062015
DRAG SPECIALTIES
$54.55A deteriorating rear master cylinder compromises braking performance and safety—this comprehensive repair kit restores your hydraulic system to factory specifications without the cost of full replacement. Whether you're rebuilding after heavy track use...17310611- SKU:
- 17310611
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MOUNTING POSITION:
- REAR
- STYLE:
- CUSTOM
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$54.55 -
DRAG SPECIALTIES Master Cylinder Repair Kit - Rear 42374-82-PE-LB1
DRAG SPECIALTIES
$22.00A compromised rear master cylinder can leave you stranded or create dangerous brake inconsistency at the track or on the street. This Drag Specialties rebuild kit restores your hydraulic braking system to OEM specifications without requiring a complete...DS195042- SKU:
- DS195042
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- SILVER
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 5/8'
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
- TYPE:
- BRAKE
$22.00 -
DRAG SPECIALTIES Master Cylinder Cover - OEM - Chrome - '96-'17 DS373812-1
DRAG SPECIALTIES
$30.40A master cylinder cover protects one of your motorcycle's most critical hydraulic components from road debris, moisture, and oxidation that can compromise brake fluid integrity and system performance. This OEM-spec cover maintains a clean, finished...17310469- SKU:
- 17310469
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- STYLE:
- OEM
- TYPE:
- MASTER CYLINDER
- UNITS:
- EACH
- MOUNTING POSITION:
- FRONT
$30.40 -
DRAG SPECIALTIES Master Cylinder - Rear 85340
DRAG SPECIALTIES
$123.85A hydraulic rear brake system depends entirely on a responsive, leak-free master cylinder to deliver consistent stopping power. The DRAG Specialties Master Cylinder ensures reliable brake modulation cycle after cycle, whether you're street riding or at...17310205- SKU:
- 17310205
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- MASTER CYLINDER
- TYPE:
- BRAKE
- BORE SIZE IMPERIAL:
- 3/4'
- COLOR/FINISH:
- POLISHED
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$123.85 -
DRAG SPECIALTIES Master Cylinder - Rear 85341
DRAG SPECIALTIES
$136.45A quality rear master cylinder is fundamental to brake system reliability and modulation, especially in high-performance applications where consistency matters. The DRAG Specialties Master Cylinder delivers the hydraulic precision your braking system...17310206- SKU:
- 17310206
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- MASTER CYLINDER
- TYPE:
- BRAKE
- BORE SIZE IMPERIAL:
- 3/4'
- COLOR/FINISH:
- POLISHED
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
$136.45Qty in Cart: 0Quantity:Price:$136.45Subtotal: -
DRAG SPECIALTIES Master Cylinder - Rear 82563
DRAG SPECIALTIES
$173.20A quality rear master cylinder is fundamental to consistent brake modulation and safety, especially in high-performance applications where precision braking is non-negotiable. The DRAG SPECIALTIES Master Cylinder delivers reliable hydraulic pressure...17310145- SKU:
- 17310145
- Availability:
- Ships Same Business Day
- Weight:
- 1.26 LBS
- COLOR/FINISH:
- POLISHED
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- MASTER CYLINDER
- STYLE:
- STANDARD
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3/4'
- TYPE:
- BRAKE
$173.20 -
DRAG SPECIALTIES Rear Master Cylinder Repair Kit - '14+ XL 87161
DRAG SPECIALTIES
$33.55A compromised rear master cylinder can turn a reliable ride into a safety liability—and a complete replacement often costs more than necessary. This DRAG SPECIALTIES rebuild kit restores your '14+ Sportster's braking performance with OEM-specification...17310419- SKU:
- 17310419
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- SILVER
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- BRAKE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
$33.55 -
DRAG SPECIALTIES Rear Master Cylinder Reservoir - FLT/FXR H17-0630
DRAG SPECIALTIES
$47.20A quality rear master cylinder reservoir is critical for maintaining consistent brake pressure and fluid capacity in high-performance riding conditions. This DRAG SPECIALTIES unit delivers OEM-compatible reliability with a pre-installed sight glass,...17310565- SKU:
- 17310565
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- COLOR/FINISH:
- POLISHED
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- RESERVOIR
- RIDING STYLE:
- STREET
- TYPE:
- BRAKE
- TYPE:
- MASTER CYLINDER
- UNITS:
- EACH
- MATERIAL:
- DIE-CAST ALUMINUM
$47.20Qty in Cart: 0Quantity:Price:$47.20Subtotal: -
DRAG SPECIALTIES Rear Master Cylinder Repair Kit - XL 04-06 87716
DRAG SPECIALTIES
$28.30A degraded rear master cylinder compromises braking performance and safety—this rebuild kit restores your Sportster's stopping power to OEM specifications without the cost of a full replacement. Whether you're maintaining a daily rider or prepping for...17310543- SKU:
- 17310543
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- BRAKE
- COLOR/FINISH:
- SILVER
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$28.30Qty in Cart: 0Quantity:Price:$28.30Subtotal: -
DRAG SPECIALTIES Rear Master Cylinder Repair Kit - XL 07-13 87717
DRAG SPECIALTIES
$28.30A worn rear master cylinder compromises both braking feel and safety—two things you can't afford to compromise on a Sportster. This rebuild kit restores OEM-level hydraulic performance with quality components, letting you maintain consistent brake...17310544- SKU:
- 17310544
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- BRAKE
- MOUNTING POSITION:
- REAR
- COLOR/FINISH:
- SILVER
- UNITS:
- KIT
$28.30Qty in Cart: 0Quantity:Price:$28.30Subtotal: -
DRAG SPECIALTIES Rear Master Cylinder Cover - 86-99 FLST 17-0602-SC3
DRAG SPECIALTIES
$39.85A quality rear master cylinder cover protects your hydraulic brake system from road debris, moisture, and contamination while maintaining a finished appearance on your FLST. This Drag Specialties cover is a direct bolt-on replacement that restores...DS530602- SKU:
- DS530602
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MOUNTING POSITION:
- REAR
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- STYLE:
- OEM
- UNITS:
- EACH
$39.85 -
DRAG SPECIALTIES Master Cylinder - Rear 144065-BC422
DRAG SPECIALTIES
$149.05A quality rear master cylinder is critical to maintaining consistent brake pressure and responsive stopping power in high-performance applications. The DRAG SPECIALTIES Master Cylinder delivers reliable hydraulic performance with polished and...DS530627- SKU:
- DS530627
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- COLOR/FINISH:
- CHROME
- COLOR/FINISH:
- POLISHED
- MOUNTING POSITION:
- REAR
- TYPE:
- BRAKE
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3/4'
- PRODUCT NAME:
- MASTER CYLINDER
- STYLE:
- KELSEY-STYLE
- RIDING STYLE:
- STREET
$149.05 -
DRAG SPECIALTIES Master Cylinder Update Kit - 96-05 DS290621-1
DRAG SPECIALTIES
$17.80A deteriorating master cylinder compromises your braking system's reliability and safety—especially critical for high-performance applications where consistent hydraulic pressure is non-negotiable. This DRAG Specialties update kit restores your master...17310468- SKU:
- 17310468
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
- MATERIAL:
- RUBBER
- UNITS:
- KIT
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$17.80 -
DRAG SPECIALTIES Master Cylinder Repair Kit - Rear 41762-58A-PELB1
DRAG SPECIALTIES
$23.05A degraded rear master cylinder compromises your braking response and safety—especially critical in high-performance riding where precision matters. This DRAG Specialties rebuild kit restores your system to OEM specifications with quality components,...DS195048- SKU:
- DS195048
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BORE SIZE IMPERIAL:
- 3/4'
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- SILVER
- UNITS:
- KIT
- STYLE:
- WAGNER-STYLE
- RIDING STYLE:
- STREET
- TYPE:
- BRAKE
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- MASTER CYLINDER
$23.05Qty in Cart: 0Quantity:Price:$23.05Subtotal: -
DRAG SPECIALTIES Master Cylinder - Rear 46471
DRAG SPECIALTIES
$152.20A quality rear master cylinder is fundamental to reliable braking performance, especially under the demanding conditions of drag racing and high-performance driving. The DRAG Specialties Master Cylinder delivers consistent hydraulic pressure and...78053043- SKU:
- 78053043
- Availability:
- Ships Same Business Day
- Weight:
- 1.04 LBS
- COLOR/FINISH:
- POLISHED
- MOUNTING POSITION:
- REAR
- BORE SIZE IMPERIAL:
- 3/4'
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- BRAKE
- UNITS:
- EACH
- PRODUCT NAME:
- MASTER CYLINDER
- STYLE:
- STANDARD
$152.20 -
DRAG SPECIALTIES Master Cylinder Repair Kit - Rear 20171-HC3
DRAG SPECIALTIES
$70.30A deteriorating master cylinder compromises your braking system's responsiveness and safety—this rebuild kit restores OEM-spec hydraulic performance without requiring a complete replacement. Whether you're maintaining a vintage cruiser or preparing a...DS195059- SKU:
- DS195059
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- STYLE:
- STANDARD
- TYPE:
- MASTER CYLINDER
- BORE SIZE IMPERIAL:
- 3/4'
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- SILVER
- UNITS:
- KIT
- TYPE:
- BRAKE
$70.30Qty in Cart: 0Quantity:Price:$70.30Subtotal: -
DRAG SPECIALTIES Chrome Master Cylinder Cap 17-0027-BC104
DRAG SPECIALTIES
$23.05A worn or damaged master cylinder cap compromises your brake system's integrity and allows contamination to degrade fluid quality over time. The DRAG SPECIALTIES Chrome Master Cylinder Cap maintains a proper seal while delivering a clean, professional...DS530624- SKU:
- DS530624
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- MOUNTING POSITION:
- REAR
- UNITS:
- EACH
$23.05 -
DRAG SPECIALTIES Master Cylinder - Rear 17-0632-BX-LB2
DRAG SPECIALTIES
$317.05A hydraulic rear master cylinder is critical to your braking system's reliability and modulation, especially in high-performance applications where consistent pedal feel directly impacts lap times and safety. The DRAG Specialties Master Cylinder delivers...DS530632- SKU:
- DS530632
- Availability:
- Ships Same Business Day
- Weight:
- 1.31 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- BRAKE
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3/4'
- COLOR/FINISH:
- POLISHED
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- MASTER CYLINDER
- RIDING STYLE:
- STREET
- STYLE:
- KELSEY-STYLE
$317.05 -
JOKER MACHINE Master Cylinder Cover - Smooth - Chrome - FL 08-010C
JOKER MACHINE
$59.95Your stock master cylinder cover is purely functional—but your bike's hardware deserves better. The JOKER MACHINE Master Cylinder Cover replaces that cast assembly with a precision-machined alternative that delivers genuine visual and tactile upgrades...17310553- SKU:
- 17310553
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MATERIAL:
- 6061-T6 ALUMINUM
- STYLE:
- SMOOTH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
$59.95
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Rear Master Cylinders and Parts
- Compatibility: Ensure parts fit your Harley's model (e.g., Sportster XL 2004-2017, FLT Touring 2008-2020, Big Twin) and specifics like bore size (3/4", 5/8", 9/16", 11/16"). Use the vehicle selector for year-specific matches to avoid installation or performance issues.
- Type of Use: For street cruising or touring, opt for standard master cylinders or rebuild kits for reliable braking; custom or performance builds benefit from billet assemblies for enhanced style and pressure delivery in demanding conditions.
- Components and Upgrades: Select complete assemblies, covers (dimpled/finned), gaskets (rubber), rebuild kits (seals/pistons), or pins. Focus on features like CNC-machined designs, anodized finishes, and included hardware for leak-free rebuilds.
- Brand and Quality: Choose Joker Machine for warrior-style covers, Drag Specialties for chrome assemblies, Covingtons for finned billet options, Accutronix for custom 5/8" bore, Eastern for black 3/4" assemblies, or Performance Machine for 11/16" rebuilds. Prioritize billet aluminum/steel with chrome/black finishes for durability and corrosion resistance.
- Installation and Cost: Most parts are bolt-on or direct replacements for easy DIY; rebuild kits simplify overhauls. Prices range from $10.15 for gaskets to $299.95 for assemblies—factor in USA-made quality and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these rear master cylinders and parts support? Parts support models like Sportster XL (2004-2017), FLT Touring (2008-2020), Big Twin, and more—use the year/make/model filter for exact compatibility.
- How do billet master cylinders improve performance? They offer superior pressure delivery with custom styles and bore sizes (e.g., 5/8") for better braking feel and durability.
- What is typically included in a rebuild kit? Kits like Performance Machine include components for one master cylinder (11/16" bore), excluding cover gaskets—check details for specifics.
- Are covers and gaskets weather-resistant? Yes, with anodized/chromed billet aluminum and rubber gaskets for corrosion resistance and secure seals.
- What if a part doesn't fit my Harley? Verify bore size, finish, and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related braking parts? Yes—explore pads, rotors, or lines in the Harley braking category to complement your master cylinder upgrade for optimal stopping power.
