Product Introduction
140501118001 Vacuum-Assisted High-Strength OEM-Style Brake Master Cylinder for Geely CK
Engineered for 1.5L-1.6L applications, this unit delivers precise, OEM-grade braking via an integrated vacuum booster—reducing pedal effort by ~20% for comfort. Crafted from high-strength aluminum alloy, it resists corrosion and boasts a 120-bar max hydraulic pressure for strong stopping force. With <3% pedal travel variation, it ensures consistent response. Backed by 10+ years of automotive aftermarket experience and ISO 9001 certification, this master cylinder meets strict quality benchmarks for daily driving safety and durability. Trust it for hassle-free, reliable performance.
Product Advantage
1. Vacuum-Assisted Efficiency for Reduced Driver Fatigue
Our master cylinder integrates a precision-matched vacuum booster, cutting pedal effort by ~20% compared to non-assisted units. This design minimizes strain during frequent braking (e.g., stop-and-go traffic) while maintaining optimal hydraulic pressure transfer—ensuring safe, low-effort stops. Trusted by aftermarket professionals for balancing comfort and performance without compromising safety.
2. Durable Aluminum Build for Long-Term Reliability
Crafted from aerospace-grade aluminum alloy, this unit resists corrosion and wear even in harsh environments (e.g., coastal areas, road salt). It supports up to 120-bar maximum hydraulic pressure—delivering strong, consistent braking force—and lasts 30% longer than standard steel counterparts in salt-spray trials. Built for aftermarket durability.
3. Consistent Pedal Response for Driver Confidence
Engineered with tight manufacturing tolerances (<0.01mm), our master cylinder ensures <3% variation in pedal travel over 10,000+ test cycles. This predictability means no sudden changes in stopping power—critical for highway merging or urban braking. Backed by ISO 9001-certified quality control.
4. OEM-Grade Compatibility for Installers
Designed to match the specifications of 1.5L-1.6L engines, this master cylinder fits seamlessly into common aftermarket installations—eliminating guesswork for mechanics. With 10+ years serving global distributors, we guarantee OEM-style fit, form, and function—reducing return rates by ~15% for installers.
5. Proven Aftermarket Track Record
Backed by 10+ years of experience and thousands of successful installations, this unit meets strict industry benchmarks for safety and durability. Our ISO 9001 factory ensures every piece undergoes rigorous testing—including pressure cycling and leak checks—to deliver hassle-free performance for end users.
Technical Parameters
| Category | Parameter | Specification | Notes/Standards |
| Dimensions | Overall Length | 125mm | Precision-machined to ensure fitment in standard 1.5L-1.6L engine bays. |
| Body Diameter | 55mm
| Optimized for space-constrained installations without compromising rigidity. |
| Mounting Hole Spacing | 105mm x 85mm | Aligns with universal aftermarket bracket systems; tolerance: ±0.1mm. |
| Materials | Cylinder Body | A380 Die-Cast Aluminum Alloy | High-strength, corrosion-resistant; tested to withstand 10+ years of road vibrations. |
| Piston & Seals | Stainless Steel Piston + NBR Rubber Seals | Resistant to brake fluid degradation (DOT 3/4/5.1); prevents leaks under high temp. |
| Performance | Max Hydraulic Pressure | 120bar | Exceeds OEM requirements for 1.5L-1.6L systems; ensures rapid, consistent braking. |
| Vacuum Assist Ratio | 1:3.5 (Booster Output Force : Input Force)
| Reduces pedal effort by ~20% vs. non-assisted units; tested with SAE J1686 standards. |
| Pedal Travel Variation | ≤2.5% full stroke (over 10,000 test cycles) | Ensures predictable response; critical for driver confidence in emergency stops. |
| Testing & QA | Static Pressure Leak Test | 150bar for 30s with zero leakage | ISO 9001-certified process; eliminates post-installation failure risks.
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| Fatigue Life | 100,000 cycles at 80bar pressure | Passes SAE J1116 fatigue testing; outperforms industry average (80,000 cycles). |
| Corrosion Resistance | 500hrs salt spray test per ASTM B117 | No visible rust or material degradation; suitable for coastal/high-humidity regions. |
| Certifications | Quality Management | ISO 9001:2015 | Rigorous factory audits ensure consistent quality across batches. |
| Automotive Industry Standard | IATF 16949:2016 Compliant | Meets global automotive aftermarket safety and traceability requirements. |
Product Uses
Here are specific application scenarios of Clutch Master Cylinder:
1. Daily Urban Commuting
Ideal for drivers logging 50+ miles/day, this unit’s vacuum assist cuts pedal effort by ~20%, easing fatigue during frequent stop-and-go traffic. Tested to maintain <3% pedal travel variation (even after 10,000 cycles), it delivers consistent, low-effort stops—critical for city driving where precision matters. ISO 9001-certified quality ensures reliability for year-round urban use.(Data: 20% effort reduction, <3% travel variation; Authority: ISO 9001)
2. High-Speed Highway Driving
At 80–120 km/h, consistent braking is non-negotiable. This cylinder’s 120-bar max pressure provides linear force transfer—slowing vehicles 30% faster than sub-standard units (per independent tests). Its fatigue-resistant design (100,000-cycle SAE J1116 rating) guarantees dependability for long highway stretches.(Data: 120-bar pressure, 30% faster stopping; Authority: SAE J1116)
3. Long-Distance Cross-Country Trips
For 500+ mile journeys, its airtight seals prevent brake fluid leaks—tested to last 500+ hours in ASTM B117 salt spray. The vacuum booster reduces driver fatigue on monotonous roads, while 10+ years of aftermarket experience ensures it won’t let travelers down. A top pick for fleet operators and road-trippers.(Data: 500+ hour salt spray resistance; Authority: ASTM B117)
4. Emergency Braking Situations
When split-second reactions count, tight manufacturing tolerances (<0.01mm) ensure predictable pedal feel—no sudden power loss during hard stops. Meeting IATF 16949 safety standards, it’s trusted by installers to prevent accidents in high-risk scenarios like sudden lane changes or pedestrian crossings.
(Data: <0.01mm tolerances; Authority: IATF 16949)
Product Operate Guide
Optimize safety & longevity: 1) Clean mounting surfaces to avoid debris—prevents leaks. 2) Torque bolts to 15Nm (ISO 9001 spec) for a rigid fit. 3) Attach the vacuum hose; test for leaks at 120bar (SAE J1686 standard). 4) Bleed the system per your manual before driving. These steps ensure consistent braking and extend component life—backed by 100k+ fatigue cycle testing.
