Product Description
The KAB00247/A Piston Kit is the official OEM solution for rebuilding the front brake master cylinder. Unlike aftermarket kits that may use inferior rubber seals that degrade over time, this genuine kit features high-precision components engineered to withstand high brake fluid pressures and extreme temperature cycles.
This kit is vital if you are experiencing a “spongy” brake lever, fluid leaks around the lever pivot, or a lever that fails to return to its original position. It includes the internal piston, the return spring, and the spring retainer, all pre-sized for the specific bore of the J-Series and 650cc master cylinders. Timely replacement of these internal seals is a cost-effective alternative to replacing the entire master cylinder assembly.
Key Features:
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Genuine OEM Reliability: 100% original Royal Enfield spare (PN: KAB00247/A) for guaranteed factory performance.
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Complete Rebuild Kit: Includes the high-grade aluminum piston, heavy-duty return spring, and secure spring retainer.
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Factory Precision: Restores the crisp, responsive braking feel lost to worn-out internal seals.
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Corrosion Resistant: Materials are specifically treated to resist the corrosive properties of DOT 4 brake fluid.
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Direct Fitment: Designed for seamless integration into the factory master cylinder without modifications.
Technical Specifications:
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Part Number: KAB00247/A (also listed as PSKAB00247)
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Component Type: Master Cylinder Major Kit (Front)
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Kit Includes: Piston, Spring Retainer, Return Spring
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Material: Aluminum & Industrial Grade Rubber
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Quantity: 1 Set
Vehicle Compatibility:
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Royal Enfield Meteor 350 (All Variants)
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Royal Enfield Classic 350 Reborn (2021+ J-Series)
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Royal Enfield Hunter 350
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Royal Enfield Bullet 350 (New J-Series Model)
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Royal Enfield Continental GT 650 (BS6 / BS6.2 Models)
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Royal Enfield Interceptor 650 (BS6 / BS6.2 Models)
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Note: Specifically for the J-Series and 650 Twin master cylinders. Not compatible with the older UCE-era Classic/Bullet models.











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