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A11-3502190
HongPro
A11-3502190
Engineered to OEM standards, this brake master cylinder delivers exceptional performance and safety for modern braking systems. Crafted from high-grade materials, it ensures superior pressure tolerance (tested up to 2,500 PSI) and consistent fluid displacement for responsive, reliable braking. The precision-machined bore and advanced sealing technology minimize internal leakage, extending service life under demanding conditions.
Each unit undergoes rigorous bench testing to guarantee optimal functionality, including pressure cycling and leak detection. Compatible with DOT 3 and DOT 4 fluids, it features corrosion-resistant construction for long-term durability. This direct-fit replacement is ideal for ensuring your vehicle's braking system operates with the precision and safety it was designed for.
Upgrade with confidence—this component meets or exceeds original specifications, providing a safety-critical solution you can trust.
This master cylinder is engineered for uncompromising safety. The body is manufactured from high-strength, corrosion-resistant aluminum alloy, tested to withstand burst pressures exceeding 2,500 PSI. Inside, we utilize advanced composite piston cups and a reinforced rubber reservoir diaphragm. This combination ensures zero fluid leakage and consistent pedal feel, even under extreme temperature fluctuations from -40°C to 120°C. Our 100% pressure cycling test guarantees each unit performs flawlessly, providing peace of mind and long-term reliability.
We eliminate performance variance with a mirror-smooth, CNC-machined bore that maintains a tolerance of within ±0.01mm. This precision minimizes internal friction and ensures consistent fluid displacement for immediate and predictable braking response. The result is a pedal feel that matches or exceeds OEM specifications. This attention to detail prevents issues like a spongy brake pedal and ensures the braking system operates as an integrated, efficient unit, directly enhancing driver safety and control.
Every A11-3502190 unit is a direct replacement, designed to match original mounting points and fluid port configurations for a hassle-free installation. Beyond design, our quality control is relentless. Each cylinder undergoes a 72-hour functional simulation, cycling over 10,000 times, and a final vacuum decay test with a sensitivity of 0.05 cm³/min to detect even microscopic leaks. This commitment to validation means you are installing a component verified for performance, not just basic function.
Built to last, the cylinder's primary body is treated with a yellow chromate conversion coating, providing superior resistance to corrosion, brake fluid degradation, and environmental contaminants. Internal springs are made from high-carbon steel, coated for protection against fatigue. This focus on material science ensures a service life that withstands harsh operating conditions, reducing the risk of premature failure and providing a truly cost-effective, long-term solution for vehicle safety systems.
| Parameter | Specification | Details / Standards |
| OEM Part Number | A11-3502190 | Direct Interchange |
| Body Material | High-Strength Aluminum Alloy | ASTM B85 Standard, Corrosion-Resistant |
| Surface Treatment | Yellow Chromate Conversion Coating | Meets ISO 9227 Salt Spray Test (120+ hours) |
| Bore Diameter | 20.64 mm (±0.01mm) | Precision CNC Machined, Mirror-Finish |
| Port Thread Size | M10 x 1.0 (Dual Outlet) | Standard Metric Flare Fitting |
| Maximum Operating Pressure | 2,500 PSI (172 Bar) | Dynamically Tested on Every Unit |
| Fluid Compatibility | DOT 3, DOT 4, DOT 5.1 | Compatible with Synthetic and Conventional Fluids |
| Operating Temperature Range | -40°C to 120°C (-40°F to 248°F) | Stable performance under extreme conditions |
| Reservoir Material | Reinforced Nylon (Polyamide 66) | High-Temperature & Chemical Resistant |
| Reservoir Diaphragm | EPDM Rubber | Excellent elasticity and fluid resistance |
| Internal Seals | Nitrile (NBR) / EPDM Composite | Designed for zero leakage and long service life |
| Quality Standards | IATF 16949:2016 | Manufactured under International Automotive Quality Standards |
| Testing & Validation | 100% Pressure Cycle Test, Vacuum Decay Leak Test (< 0.05 cm³/min) | Ensures zero-defect performance out of the box |
Here are specific application scenarios of Clutch Master Cylinder:
This master cylinder is the definitive solution for standard maintenance cycles or addressing common brake system degradation. It is engineered as a direct OEM replacement, ensuring perfect fitment with existing brake lines and mounting points. When a vehicle exhibits symptoms like a descending brake pedal, increased stopping distance, or visible fluid leaks from the master cylinder, this unit restores the system to its original performance specifications. Its plug-and-play design makes it ideal for professional workshops and skilled DIY installers seeking a reliable, no-hassle part for critical brake system repairs.
For vehicles undergoing a full brake system rehabilitation, this component serves as the central hydraulic control unit. It is perfectly suited for projects where other wear items like calipers, rotors, and hoses are also being replaced. Our cylinder's high-pressure tolerance (tested to 2,500 PSI) and corrosion-resistant construction ensure it can handle the demands of a completely renewed system. This makes it a trusted choice for ensuring overall braking efficiency and safety, providing a solid foundation that complements the performance of other new components.
High-mileage vehicles often suffer from wear in critical components that affects driving dynamics and safety. The internal bore of the master cylinder can develop microscopic scratches or corrosion over time, leading to a spongy pedal feel. Our A11-3502190 unit, with its precision CNC-machined bore and new, high-grade seals, directly addresses this wear. It eliminates internal fluid bypass to restore a firm, responsive brake pedal, effectively reversing one of the most common age-related brake issues and significantly improving driver confidence.
This master cylinder is the correct repair procedure for issues stemming from contaminated brake fluid or failed internal seals. Incompatible fluids or moisture absorption can cause the piston cups to swell, degrade, and fail. Our unit comes pre-assembled with new, fluid-compatible Nitrile/EPDM seals and is filled with clean, protective oil for storage. This guarantees a perfect starting point, ensuring the new hydraulic system is sealed against contaminants from the outset, preventing premature failure and maintaining the integrity of the entire brake system.
For optimal performance and safety, always consult a professional mechanic. Prior to installation, conduct a full brake system inspection. Ensure the new master cylinder is bench-bled to remove all air, preventing a spongy pedal. Use only DOT 4 or DOT 3 fluid and tighten fluid line connections to the specified torque of 15-18 N·m (11-13 ft-lbs). After installation, perform a comprehensive system bleed and test the vehicle in a safe, controlled area to verify firm pedal feel and leak-free operation. Always wear appropriate safety equipment.