A13-3505010
Product Details
1. Basic Overview & Core Functional Positioning
The A13-3505010 Brake Main Cylinder, also known as the brake master cylinder, is an authentic OEM core hydraulic component exclusively designed for the Chery Fulwin2 compact sedan, also compatible with Chery E3 and A13 platform models. Mounted on the engine compartment firewall and directly connected to the brake pedal and brake fluid reservoir, this part serves as the central power source of the vehicle’s hydraulic braking system. It undertakes the most critical braking function: converting the mechanical stepping force applied by the driver on the brake pedal into stable and controllable hydraulic pressure, and transmitting the pressure to four-wheel brake calipers and wheel cylinders through brake pipelines to realize vehicle deceleration and parking braking. As a safety-related first-class automotive component, its working stability directly determines the braking sensitivity, braking distance and driving safety of Chery Fulwin2 vehicles.
Adopting a mature dual-circuit hydraulic design, the A13-3505010 brake main cylinder supports independent pressure supply for the front and rear brake circuits or diagonal wheel circuits. This fail-safe structural design ensures that if a single brake pipeline leaks or fails, the other independent circuit can still maintain basic braking capacity, effectively avoiding complete braking failure and greatly improving driving safety. During daily urban driving, highway cruising and emergency braking scenarios, it can quickly build up hydraulic pressure, respond to braking instructions in real time, and eliminate braking lag and soft pedal problems. Meanwhile, it matches the original vehicle’s brake force calibration parameters of Fulwin2, realizing linear braking feedback, moderate pedal travel and stable braking output, balancing driving comfort and braking efficiency perfectly.
The part number A13-3505010 is a dedicated specification for Chery Fulwin2 series, with exclusive cylinder bore diameter, piston stroke, interface thread size and reservoir matching structure. It cannot be interchanged with brake master cylinders of other Chery models such as Tiggo series, Arrizo series or other platform sedans. Manufactured in strict accordance with IATF 16949 international automotive quality standards and Chery original factory safety specifications, every hydraulic parameter and assembly dimension is precisely calibrated for Fulwin2 chassis braking system. Compared with inferior aftermarket cylinders that are prone to pressure loss, internal leakage and slow pressure build-up, the genuine A13-3505010 cylinder features stable hydraulic output, excellent sealing performance and long service life, effectively avoiding common faults such as soft brake pedal, prolonged braking distance and brake failure warning.
2. Material Selection & Manufacturing Standards
The A13-3505010 Brake Main Cylinder adopts high-standard automotive-grade aluminum alloy and high-performance rubber sealing materials, specially optimized to adapt to long-term hydraulic pressure impact, brake fluid corrosion and frequent reciprocating working conditions. The main cylinder body is made of high-density die-cast aluminum alloy with integral forming technology, featuring lightweight, high rigidity, pressure resistance and deformation resistance. This material effectively resists high hydraulic pressure impact during frequent braking, will not expand or deform, and maintains stable internal cylinder bore roundness and dimensional accuracy for a long time, avoiding pressure attenuation caused by cylinder body deformation.
The internal piston, push rod and guide components adopt high-precision hard-anodized metal materials, with smooth surface and ultra-low friction coefficient, ensuring flexible reciprocating movement without jamming or stagnation. The core sealing components including primary and secondary piston sealing rings adopt imported oil-resistant and aging-resistant EPDM rubber materials. These accessories have excellent tolerance to long-term immersion of DOT3/DOT4 brake fluid, strong high and low temperature resistance, and will not harden, shrink or age under extreme temperature changes from -40°C to 120°C. The reserved fluid port and sensor installation interface adopt precision thread processing, ensuring tight connection and no leakage of brake fluid. The matched plastic oil reservoir bracket is made of high-toughness engineering plastic, which is anti-fall and anti-crack, fixing the oil storage tank stably.
All finished A13-3505010 brake main cylinders pass strict multi-channel factory performance tests, including full-range hydraulic pressure resistance testing, internal and external leakage testing, reciprocating fatigue durability testing, high and low temperature cycle aging testing and fluid sealing stability testing. Each product undergoes precise hydraulic calibration to ensure consistent pressure build-up speed and pressure holding capacity. Strict quality screening eliminates defective products with unsmooth piston movement, poor sealing and insufficient pressure resistance, ensuring that each genuine part meets Chery’s strict braking safety and durability standards, and can maintain stable braking performance after long-term high-frequency use.
3. Structural Composition & Working Principle
The A13-3505010 Brake Main Cylinder adopts a classic dual-circuit tandem piston integrated structure, which is the mainstream safety braking structure for Chery Fulwin2 passenger cars. The overall structure is compact and highly integrated, mainly composed of aluminum alloy cylinder body, primary and secondary tandem pistons, return spring assembly, multi-layer sealing ring group, brake fluid inlet and outlet ports, pressure balancing valve and fluid level sensor mounting interface. The overall size and installation hole positions are completely matched with the Fulwin2 engine compartment installation space, brake pedal stroke and original brake pipeline layout, realizing seamless assembly without modification.
Its core working principle relies on mechanical-hydraulic energy conversion and dual-circuit pressure balance. When the driver steps on the brake pedal, the pedal push rod pushes the primary piston inside the main cylinder to move forward, compressing the brake fluid in the front cavity to generate hydraulic pressure. The pressure acts on the secondary piston through the balance channel, synchronously building pressure in the rear cavity. The two independent hydraulic circuits transmit pressure to the front and rear wheel brakes respectively, pushing the brake caliper pistons to clamp the brake discs and complete braking. When the brake pedal is released, the internal return spring quickly resets the piston, the hydraulic pressure is released instantly, and the brake system returns to the standby state.
The built-in pressure compensation and overflow structure ensures stable hydraulic pressure output under different stepping strokes and vehicle speeds. During light braking, it outputs low and stable pressure to realize gentle deceleration; during emergency full stepping, it quickly builds high pressure to maximize braking efficiency. The dual-circuit isolation design fundamentally avoids total braking failure caused by single pipeline leakage. The precise sealing system prevents internal micro-leakage and pressure relief, ensuring that the brake pedal has stable hardness and no sinking phenomenon, maintaining consistent braking hand feel and reliable braking performance throughout the service life of Chery Fulwin2 vehicles.
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