Product Description
The KAB00027/A Major Kit is a factory-original hydraulic rebuild set engineered specifically for the Endurance-type master cylinders used on BS6-compliant Royal Enfield motorcycles. Over time, the internal seals of the master cylinder can wear down due to constant friction and heat, leading to common issues like a spongy brake lever, slow lever return, or fluid leaks.
This “Major Kit” provides a complete internal refresh, including the piston assembly, primary and secondary rubber seals, and the return spring. By replacing these critical wear parts with this genuine kit, you restore the “bite” and firm feedback of your front brakes, ensuring maximum safety while avoiding the significantly higher cost of a complete master cylinder replacement.
Key Features:
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Genuine OEM Quality: 100% original Royal Enfield spare (PN: KAB00027/A) manufactured to exact factory standards for safety and reliability.
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Endurance Type (ETL): Specifically calibrated for the Endurance brand braking systems found on modern BS6 UCE and J-Series bikes.
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Full Internal Overhaul: Contains all essential internal components (piston, seals, and springs) to stop leaks and restore hydraulic pressure.
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BS6 Optimized: Engineered to handle the specific pressures and tolerances required for modern ABS-equipped braking systems.
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Weather & Fluid Resistant: Rubber seals are made from high-grade elastomers that resist swelling or hardening when used with DOT 4 brake fluid.
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Cost-Efficient Maintenance: Renew your master cylinder’s performance at a fraction of the price of a full assembly.
Technical Specifications:
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Part Number: KAB00027/A (Replaces older 594705 variants for BS6 models)
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Component Type: Front Master Cylinder Major Overhaul Kit
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Brake System: Front Disc (Endurance Type)
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Quantity: 1 Number
Vehicle Compatibility:
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Royal Enfield Classic 350 BS6 (UCE & J-Series Reborn)
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Royal Enfield Bullet 350 BS6 (UCE & New J-Series)
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Royal Enfield Hunter 350 (Retro & Metro variants)
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Royal Enfield Classic 500 EFI (Late BS4/BS6 Export Models)
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Royal Enfield Electra 350 BS6
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Note: Always verify that your master cylinder is an “Endurance” type before purchase, as some models may use ByBre or Nissin components requiring different kits.











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