Genuine Royal Enfield Himalayan 411 / Scram 411 Front Brake Master Cylinder Assembly – RAB00223/A

Genuine Royal Enfield front brake master-cylinder assembly for compatible Himalayan 411 and Scram 411 motorcycles. Exact manufacturer part number RAB00223/A is the right-handlebar hydraulic control that converts front-brake-lever input into hydraulic pressure. This is a safety-critical braking component and must be selected by exact part number and installed, filled, bled and tested correctly.

What It Is

• Genuine Royal Enfield front brake master-cylinder assembly
• Exact manufacturer part number / MPN: RAB00223/A
• Confirmed for Himalayan 411
• Confirmed in the Scram 411 ABS/front-brake parts family
• Right-handlebar front brake control
• Hydraulic component for the front braking circuit
• One assembly used per applicable motorcycle

What It Is Not

• Not a rear brake master cylinder
• Not a front brake caliper
• Not an ABS modulator
• Not a brake hose or complete brake system
• Not confirmed for Himalayan 450 or Guerrilla 450
• Not confirmed for Interceptor 650, Continental GT 650 or other Royal Enfield models
• Not supplied with brake fluid, bleeding equipment or installation labour

Verified Specifications

Confirmed Fitment

Check Before Ordering

Fitment Exclusions and Cautions

Related Brake Parts Comparison

Purpose and Replacement Guidance

The front master cylinder creates hydraulic pressure when the rider pulls the front brake lever. Replacement may be required for internal leakage, external fluid leakage, damaged reservoir or cap threads, corroded bore, seized piston, impact-damaged body, worn pivot mounting or incorrect pressure retention. Brake drag, a soft lever or loss of pressure can also be caused by hose, caliper, fluid, air, ABS or mechanical faults, so diagnose the complete system before replacing parts.

Box Contents

• 1 × Genuine Royal Enfield front master-cylinder assembly, RAB00223/A

Inclusion caution: catalogue wording identifies an assembly, but production packaging can change. Only components physically packed with the supplied assembly are included. Do not assume inclusion of the brake lever, clamp, switch, cap, diaphragm, banjo bolt, sealing washers, hose, fluid or mounting screws without checking the received pack.

Installation and Safety Guidance

1. Confirm RAB00223/A, motorcycle VIN, production revision and original assembly before dismantling.
2. Protect painted and plastic surfaces because brake fluid can damage finishes.
3. Use only the brake fluid specification and service procedure stated for the motorcycle.
4. Inspect the front brake hose, banjo surfaces, sealing washers, lever, switch and caliper before reassembly.
5. Replace single-use sealing washers and damaged hardware as required by the workshop procedure.
6. Install the master cylinder at the correct handlebar angle and tighten fasteners to specified torque.
7. Fill and bleed the hydraulic circuit fully; do not allow contamination into the system.
8. Check for leaks under sustained lever pressure.
9. Confirm brake-light operation, lever free play and full release with the handlebar turned both ways.
10. Perform a controlled stationary and low-speed braking test before normal road use.

Professional installation is strongly recommended. Incorrect installation or bleeding can cause partial or complete loss of front braking.

Return-Prevention Checklist

• My motorcycle is a Himalayan 411 or Scram 411.
• My VIN-specific catalogue calls for RAB00223/A.
• I need the front/right-handlebar master cylinder, not a rear master cylinder.
• I compared the hose outlet, banjo orientation, clamp, reservoir, lever pivot and switch provision.
• I checked what is included in the sealed factory pack.
• I understand brake fluid and separate service hardware are not promised.
• I will not fill, install, scratch, mark or contaminate the assembly before completing all checks.
• I will record one uninterrupted unboxing video from sealed parcel through inspection.

Correctly supplied items are not returnable. Replacement is available only for a wrong or transit-damaged item, subject to one uninterrupted unboxing video and notification within 24 hours of delivery. Installed, fluid-filled, scratched, marked, modified, contaminated, incomplete or damaged-after-delivery parts cannot be returned.

Why This Listing Is Clearer

• Names Himalayan 411 and Scram 411 in the title
• Retains the exact RAB00223/A suffix in title, SKU and MPN
• Separates the master cylinder from hoses, caliper, ABS unit and rear brake components
• Explains uncertain pack inclusions before purchase
• Excludes Himalayan 450 and other look-alike applications
• Includes hydraulic safety, installation and return-prevention checks

Buyer Search Terms

Royal Enfield RAB00223/A, RAB00223A, Himalayan 411 front master cylinder, Himalayan front brake pump, Scram 411 front master cylinder, Scram 411 brake pump, Himalayan right handlebar brake cylinder, genuine Royal Enfield front brake master cylinder assembly.

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Frequently Asked Questions

1. What is RAB00223/A?

It is a genuine Royal Enfield front brake master-cylinder assembly.

2. Which motorcycles are confirmed?

Confirmed applications are Himalayan 411 and Scram 411, subject to VIN verification.

3. Does it fit Himalayan 450?

No fitment is claimed. Himalayan 450 uses a different motorcycle platform.

4. Is this for the front or rear brake?

It is for the front brake system.

5. Which side of the handlebar does it fit?

It fits the right-hand front-brake-lever position.

6. Is this the brake caliper?

No. The caliper is mounted at the front wheel and is a separate part.

7. Is the ABS modulator included?

No. The ABS modulator is a separate component.

8. Is the front brake hose included?

No hose inclusion is promised; the relevant hoses are separate service parts.

9. Is the brake lever included?

Only components physically packed with the assembly are included. Confirm the sealed pack before ordering if lever inclusion is essential.

10. Is the brake-light switch included?

Switch inclusion is not promised; compare the received assembly and order separately if required.

11. Is brake fluid included?

No. Brake fluid is not included.

12. Can I install it without bleeding the brake?

No. Opening the hydraulic circuit requires correct filling, bleeding and leak testing.

13. What brake fluid should be used?

Use only the specification stated in the motorcycle's current workshop or owner information.

14. Can a soft lever confirm the master cylinder is faulty?

No. Air, fluid, hose, caliper, ABS and mechanical faults can create similar symptoms.

15. Should sealing washers be reused?

Follow the workshop procedure; hydraulic banjo sealing washers are commonly replaced when disturbed.

16. Is professional fitting recommended?

Yes. This is a safety-critical hydraulic brake component.

17. What should be checked after installation?

Check pressure retention, leaks, lever action, brake-light operation, hose clearance and full brake release.

18. Can it be returned after brake fluid is added?

No. Fluid-filled, installed, contaminated or marked correctly supplied parts are not returnable.

19. How many assemblies are supplied?

One front master-cylinder assembly is supplied.

20. How do I avoid ordering the wrong part?

Match RAB00223/A, the VIN, Himalayan 411 or Scram 411 model, right-handlebar position, hose outlet and original assembly.