Product Description
The 148714/B kit is essential for addressing issues such as a “spongy” rear brake lever, fluid seepage around the master cylinder, or a total loss of hydraulic pressure. While a “Minor” kit typically only includes external seals, this Major Kitprovides a comprehensive overhaul by replacing the internal piston assembly.
Each component is manufactured to high tolerances to withstand the extreme hydraulic pressures and heat generated during heavy braking. The seals are made from high-grade EPDM rubber, specifically chosen for its resistance to glycol-based DOT 4 brake fluids, preventing swelling or premature degradation.
What’s Inside the Kit:
-
Primary & Secondary Seals: High-pressure cups that maintain the hydraulic vacuum.
-
Master Cylinder Piston: The core internal plunger that compresses the brake fluid.
-
Return Spring: Ensures the brake lever returns quickly to its original position after release.
-
Circlip/Lock Ring: Securely holds the internal assembly within the cylinder bore.
-
Dust Boot: Protects the internal components from road grime, water, and dust.
Key Features:
-
Restores Braking Power: Eliminates pressure leaks, ensuring immediate and firm brake engagement.
-
OEM Precision: 100% genuine Royal Enfield part ensuring a factory-perfect fit and reliable performance.
-
Cost-Effective Repair: Allows for a complete rebuild of the master cylinder without the high cost of replacing the entire cast assembly.
-
Safety Certified: Engineered to meet Royal Enfield’s strict safety standards for high-speed 650cc motorcycles.
Technical Specifications:
-
Part Number: 148714/B
-
Brand: Royal Enfield Genuine Parts
-
Fluid Compatibility: DOT 4 Brake Fluid
-
Weight: ~120 grams
Vehicle Compatibility:
-
Royal Enfield Interceptor 650 (BS4 & BS6)
-
Royal Enfield Continental GT 650 (BS4 & BS6)
-
Royal Enfield Hunter 350 (All Variants: Retro, Dapper, Rebel)
-
Note: This kit is specific to the rear master cylinder used on these models. For the Classic 350 (UCE) or Himalayan 411, please use part number 594689/A.









Reviews
There are no reviews yet