Dirt Bike Rebuild Kits and Parts
Dirt Bike Brake Caliper Rebuild Kits & Parts for Honda, Yamaha & KTM at JJ Motorsports
Restore your dirt bike's hydraulic braking system to like-new condition with premium caliper rebuild kits and parts from JJ Motorsports. Our selection includes complete kits with pistons, seals, O-rings, bleed screws, and hardware designed for leak-free operation, smooth piston movement, and reliable performance in motocross, enduro, and trail riding. Compatible with top models like Honda CRF, Yamaha YZ/WR, KTM SX/EXC, and more, these high-quality components eliminate sticky calipers, spongy feel, and fluid loss while extending caliper life in dusty, wet, or high-heat conditions. From Moose Racing's OEM-spec front and rear kits to individual seals and pistons, get everything needed for a full caliper refresh without replacing the entire unit—perfect for maintenance, race prep, or off-season rebuilds.
Shop trusted brands like Moose Racing for race-proven quality. Explore related categories such as dirt bike brake lines for hydraulic upgrades or dirt bike braking for pads and rotors.
Top Brake Caliper Rebuild Kits
- Moose Racing Caliper Rebuild Kit Rear Yamaha 18-1118 – Complete rear caliper rebuild kit for Yamaha models; includes piston, seals, O-rings, and hardware for leak-free, smooth operation.
- Moose Racing Caliper Rebuild Kit Front KTM 18-3283 – Front caliper kit with high-quality seals and piston for KTM SX/EXC; restores firm braking and prevents fluid bypass.
- Moose Racing Caliper Rebuild Kit Front Honda 08-101X – OEM-spec front rebuild kit for Honda CRF with all necessary components; ensures precise piston fit and long-term reliability.
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
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- Price
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MOOSE RACING Caliper Rebuild Kit - Rear - Yamaha 18-1118
MOOSE RACING
$25.95A worn-out brake caliper can compromise stopping power and safety—especially under racing conditions or aggressive riding. This Moose Racing rebuild kit restores your rear caliper to factory...17020643- SKU:
- 17020643
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$25.95 -
MOOSE RACING Caliper Rebuild Kit - Front - Sherco 18-3321
MOOSE RACING
$29.95Brake caliper performance degrades over time as seals wear and fluid contamination occurs—a rebuild kit restores your braking system to factory specifications without the expense of replacing the...17020641- SKU:
- 17020641
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$29.95 -
MOOSE RACING Caliper Rebuild Kit - Rear - Beta 18-3315
MOOSE RACING
$28.95Brake calipers wear down with use, and deteriorating seals reduce braking performance and reliability. This Moose Racing rear caliper rebuild kit restores your braking system to original...17020640- SKU:
- 17020640
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$28.95 -
On Sale
MOOSE RACING Brake Caliper Pins B16-5819
MOOSE RACING
MSRP: $17.95Now: $11.00Was: $17.95Brake caliper pins are critical wear items that directly affect your braking system's responsiveness and reliability. Over time, factory pins can develop play, corrosion, or binding—compromising pad...17020644- SKU:
- 17020644
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
MSRP: $17.95Now: $11.00Was: $17.95 -
ALL BALLS Brake Caliper Piston 18-9000
ALL BALLS
$46.25Brake performance depends on precise hydraulic transfer, and a worn or corroded caliper piston compromises stopping power and safety. The ALL BALLS 18-9000 is precision-machined from 304 stainless...17020655- SKU:
- 17020655
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$46.25 -
ALL BALLS Brake Caliper Piston 18-9018
ALL BALLS
$27.97Brake caliper pistons are critical components that directly affect your stopping power and pedal feel—worn or corroded pistons compromise both safety and performance. The ALL BALLS 18-9018 delivers...17020656- SKU:
- 17020656
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
$27.97Qty in Cart: 0Quantity:Price:$27.97Subtotal: -
ALL BALLS Brake Caliper Piston 18-9019
ALL BALLS
$50.38Brake system reliability hinges on precision-engineered components that can withstand extreme pressures and thermal cycling without degradation. The ALL BALLS 18-9019 caliper piston is CNC-machined...17020657- SKU:
- 17020657
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$50.38 -
ALL BALLS Brake Caliper Piston 18-9008
ALL BALLS
$50.38A worn or damaged brake caliper piston directly compromises your stopping power and increases brake fade under hard braking—exactly when you need reliability most. The ALL BALLS 18-9008 restores full...17020658- SKU:
- 17020658
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
$50.38 -
ALL BALLS Brake Caliper Piston 18-9021
ALL BALLS
$50.38Brake caliper pistons are critical wear items that directly impact your braking system's responsiveness and safety. A worn or corroded piston compromises pressure consistency and can lead to uneven...17020660- SKU:
- 17020660
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$50.38 -
ALL BALLS Brake Caliper Piston 18-9001
ALL BALLS
$50.38Brake caliper pistons are critical wear items that directly impact your stopping power and pedal feel. Over time, factory pistons can develop micro-scoring, seal degradation, and corrosion that...17020648- SKU:
- 17020648
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$50.38 -
ALL BALLS Brake Caliper Piston 18-9006
ALL BALLS
$46.25Brake caliper pistons endure extreme pressure and thermal cycling—worn or corroded units compromise stopping power and pedal feel. The ALL BALLS 18-9006 restores reliable braking response with...17020649- SKU:
- 17020649
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
$46.25 -
ALL BALLS Brake Caliper Piston 18-9012
ALL BALLS
$50.38Brake caliper pistons are critical wear items that directly impact your stopping power and pedal feel. A worn or damaged piston compromises hydraulic pressure distribution, leading to uneven braking,...17020651- SKU:
- 17020651
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
$50.38 -
ALL BALLS Brake Caliper Piston 18-9045
ALL BALLS
$50.38Brake performance depends on precision-engineered pistons that respond consistently under load. The ALL BALLS 18-9045 delivers the reliability you need for confident braking, whether you're pushing...17020653- SKU:
- 17020653
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$50.38 -
ALL BALLS Brake Caliper Piston 18-9003
ALL BALLS
$21.75A brake caliper piston is critical to your stopping power—it's the component that translates hydraulic pressure into physical clamping force on your rotor. If your piston is worn, pitted, or scored,...17020668- SKU:
- 17020668
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$21.75 -
ALL BALLS Brake Caliper Piston 18-9007
ALL BALLS
$25.63Brake caliper pistons are critical wear items that directly affect your braking performance and safety. A worn or corroded piston compromises sealing integrity, leading to fluid leakage, uneven pad...17020669- SKU:
- 17020669
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
$25.63Qty in Cart: 0Quantity:Price:$25.63Subtotal: -
ALL BALLS Brake Caliper Piston 18-9020
ALL BALLS
$50.38Brake caliper pistons are critical wear items that directly affect your braking system's responsiveness and safety. If your pistons are worn, corroded, or sticking, you'll experience reduced braking...17020670- SKU:
- 17020670
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$50.38Qty in Cart: 0Quantity:Price:$50.38Subtotal: -
ALL BALLS Brake Caliper Piston 18-9015
ALL BALLS
$22.94A worn or damaged brake caliper piston compromises your stopping power and increases pedal travel, putting performance and safety at risk. The ALL BALLS 18-9015 restores precise hydraulic pressure...17020671- SKU:
- 17020671
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$22.94 -
ALL BALLS Brake Caliper Piston 18-9004
ALL BALLS
$25.63Brake caliper pistons are critical to your braking system's responsiveness and stopping power—wear or corrosion compromises both safety and performance. The ALL BALLS 18-9004 is precision-machined...17020672- SKU:
- 17020672
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
$25.63 -
ALL BALLS Brake Caliper Piston 18-9025
ALL BALLS
$56.00A worn or compromised brake caliper piston directly reduces stopping power and increases pedal travel—both critical failures in high-performance driving. The ALL BALLS 18-9025 replaces OEM pistons...17020661- SKU:
- 17020661
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$56.00 -
ALL BALLS Brake Caliper Piston 18-9009
ALL BALLS
$27.97Brake caliper pistons are critical wear items that directly impact your stopping power and pedal feel. A worn or degraded piston compromises hydraulic pressure delivery and can lead to inconsistent...17020664- SKU:
- 17020664
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$27.97
