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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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DRAG SPECIALTIES Master Cylinder - Rear - Chrome B17-0648
DRAG SPECIALTIES
$280.30A properly functioning rear master cylinder is critical to balanced braking performance and pedal feel. This DRAG Specialties assembly delivers reliable hydraulic pressure distribution with a straightforward bolt-on installation, making it an excellent...17310759- SKU:
- 17310759
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$280.30 -
DRAG SPECIALTIES Master Cylinder - Rear - Black B17-0648B
DRAG SPECIALTIES
$280.30A responsive rear brake system starts with a reliable master cylinder. This DRAG SPECIALTIES unit delivers consistent hydraulic pressure modulation for predictable braking feel, whether you're trail-braking into a corner or executing a panic stop. The...17310760- SKU:
- 17310760
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$280.30 -
DRAG SPECIALTIES Master Cylinder Repair Kit - Rear 817-0648-RB
DRAG SPECIALTIES
$50.35A worn or failing rear master cylinder compromises your braking performance and safety—especially critical for Harley-Davidson riders who demand consistent, reliable stopping power in all conditions. This DRAG SPECIALTIES rebuild kit restores your master...17310761- SKU:
- 17310761
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
$50.35 -
DYNOJET Guard - Rear Brake Reservoir 61300095
DYNOJET
$68.88Your rear brake reservoir is exposed to impact damage every time you ride—a single crash can compromise your braking system and leave you stranded. The DYNOJET Guard protects this critical component from road debris, curb strikes, and low-side impacts,...17310770- SKU:
- 17310770
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$68.88 -
DRAG SPECIALTIES Master Cylinder - Rear - Chrome B17-0655C
DRAG SPECIALTIES
$244.60A rear master cylinder is critical to your braking system's responsiveness and safety—especially under hard braking or racing conditions where pressure consistency matters. The DRAG Specialties B17-0655C delivers reliable hydraulic pressure modulation...17310762- SKU:
- 17310762
- Availability:
- Ships Same Business Day
- Weight:
- 1.14 LBS
$244.60 -
DRAG SPECIALTIES Master Cylinder - Rear - Black B17-655MB
DRAG SPECIALTIES
$244.60A responsive rear master cylinder is critical for balanced braking force distribution and pedal modulation, especially in performance driving where brake feel directly impacts lap times and safety. This fully assembled unit eliminates guesswork on...17310763- SKU:
- 17310763
- Availability:
- Ships Same Business Day
- Weight:
- 1.09 LBS
$244.60 -
COVINGTONS Rear Master Cylinder Cover - Dimpled - Chrome C1957-C
COVINGTONS
$90.95If you're building a show-quality motorcycle or upgrading your braking system's aesthetics, a quality rear master cylinder cover protects a critical component while adding polished detail to your build. Covington's dimpled design combines visual appeal...17310772- SKU:
- 17310772
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$90.95 -
COVINGTONS Rear Master Cylinder Cover - Diamondback - Chrome C3057-C
COVINGTONS
$90.95Protect your rear master cylinder from road debris and weather while adding a clean, finished look to your bike's rear end. This CNC-machined billet aluminum cover combines durability with precision engineering, ensuring your hydraulic system stays...17310774- SKU:
- 17310774
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$90.95 -
COVINGTONS Rear Master Cylinder Cover - Diamondback - Chrome C3059-C
COVINGTONS
$90.95The exposed rear master cylinder is vulnerable to road debris, moisture, and damage—a weak point in your motorcycle's braking system. The COVINGTONS Diamondback cover protects this critical component while adding genuine visual appeal to your bike's rear...17310776- SKU:
- 17310776
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$90.95Qty in Cart: 0Quantity:Price:$90.95Subtotal: -
DRAG SPECIALTIES Rear Master Cylinder Cover - M8 Softail - Gasket 78700GA
DRAG SPECIALTIES
$24.10A properly sealed rear master cylinder is non-negotiable for brake system integrity and safety. This DRAG SPECIALTIES cover keeps contaminants out of your hydraulic system while maintaining a clean, factory-correct appearance on your M8 Softail. The...17310784- SKU:
- 17310784
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
$24.10 -
DRAG SPECIALTIES Rear Master Cylinder Cover - M8 Softail - Black 78700B
DRAG SPECIALTIES
$36.70Protect your M8 Softail's rear master cylinder from road debris, moisture, and oxidation while maintaining a clean, OEM-style appearance. This DRAG SPECIALTIES cover is a straightforward bolt-on upgrade that shields a critical hydraulic component from...17310785- SKU:
- 17310785
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$36.70 -
JOKER MACHINE Rear Master Cylinder - Warrior - Black 30-392-2
JOKER MACHINE
$59.95A quality rear master cylinder is fundamental to your braking system's reliability and modulation, especially under high-performance conditions where consistency matters. The JOKER MACHINE Warrior delivers precise hydraulic response with OEM-level...17310581- SKU:
- 17310581
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- STYLE:
- WARRIOR
$59.95 -
JOKER MACHINE Master Cylinder Cover - Smooth - Black - 99-17 08-01SB
JOKER MACHINE
$59.95Your stock master cylinder cover is purely functional—and it shows. The JOKER MACHINE Master Cylinder Cover upgrades that cast assembly with precision-machined billet styling while maintaining full OEM compatibility. If you're building a bike with...17310612- SKU:
- 17310612
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- MATERIAL:
- 6061-T6 ALUMINUM
- STYLE:
- SMOOTH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
$59.95 -
JOKER MACHINE Master Cylinder Cover - FL - Black 08-009B
JOKER MACHINE
$54.95If you're running a vintage or retro-styled bike, that stock cast master cylinder cover looks out of place next to quality components. JOKER MACHINE's billet alternative transforms your brake assembly into a show-quality detail while maintaining full...17310550- SKU:
- 17310550
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- BLACK
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- RE-MACHINED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
- UNITS:
- EACH
$54.95Qty in Cart: 0Quantity:Price:$54.95Subtotal: -
JOKER MACHINE Master Cylinder Cover - Smooth - Black - FL 08-010B
JOKER MACHINE
$59.95Your stock master cylinder cover looks utilitarian at best. The JOKER MACHINE Master Cylinder Cover replaces that cast assembly with precision-machined billet style, instantly elevating your brake system's visual impact without compromising function...17310552- SKU:
- 17310552
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- 6061-T6 ALUMINUM
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- COVER
- STYLE:
- SMOOTH
- TYPE:
- MASTER CYLINDER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
$59.95 -
GMA ENGINEERING BY BDL Clutch Master Cylinder Rebuild Kit - 9/16" RBK-5
GMA ENGINEERING BY BDL
$30.77A worn or failing clutch master cylinder compromises both safety and drivability—sloppy pedal feel, inconsistent engagement, and potential hydraulic failure are all risk factors. This GMA Engineering rebuild kit restores your master cylinder to OEM...17310282- SKU:
- 17310282
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE IMPERIAL:
- 9/16'
- TYPE:
- MASTER CYLINDER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- CLUTCH
- UNITS:
- KIT
$30.77 -
GMA ENGINEERING BY BDL Master Cylinder Rebuild Kit - 5/8" RBK-4
GMA ENGINEERING BY BDL
$30.77A deteriorating master cylinder is a ticking time bomb for your braking system—loss of pedal pressure, sponginess, and eventual complete failure are inevitable without intervention. This GMA Engineering rebuild kit restores your 5/8" master cylinder to...17310281- SKU:
- 17310281
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE IMPERIAL:
- 5/8'
- TYPE:
- MASTER CYLINDER
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- SILVER
- TYPE:
- BRAKE
- UNITS:
- KIT
$30.77 -
DRAG SPECIALTIES Master Cylinder Gasket - '04-'06 XL 77359
DRAG SPECIALTIES
$10.45A worn or deteriorated master cylinder gasket compromises brake system integrity, leading to fluid leakage and reduced hydraulic pressure—exactly what you can't afford when you're counting on precision braking performance. This OEM-specification...06170210- SKU:
- 06170210
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
- MATERIAL:
- RUBBER
$10.45 -
DRAG SPECIALTIES Master Cylinder Gasket - '07-'13 XL 77360
DRAG SPECIALTIES
$12.55A worn or damaged master cylinder gasket compromises brake system integrity, leading to fluid leaks, air infiltration, and inconsistent brake pressure—none of which you can tolerate on the track or street. This OEM-equivalent replacement gasket restores...06170211- SKU:
- 06170211
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- UNITS:
- EACH
- MATERIAL:
- RUBBER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
- MOUNTING POSITION:
- REAR
$12.55 -
DRAG SPECIALTIES Rear Master Cylinder Cover - Chrome 76290
DRAG SPECIALTIES
$27.25Your rear master cylinder is both a critical hydraulic component and a visible part of your bike's aesthetic. A quality cover protects this essential assembly from road debris and moisture while giving your bike a finished, professional appearance. The...17310542- SKU:
- 17310542
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- REAR
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- MASTER CYLINDER
- UNITS:
- KIT
$27.25
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.
