Import Brake Master Cylinder — Buy in Bulk from Supplier in China

This brake master cylinder is a hydraulic actuation component that converts pedal force into fluid pressure to activate vehicle braking systems. The unit is constructed as a piston-type cylinder with reservoir, designed for integration into passenger car and light commercial vehicle brake circuits. The supplier indicates compatibility with OEM and aftermarket channels, with ABS BPCP packaging specified for transport protection. Yuhuan Humbm Machinery Manufacture Co., Ltd. operates from Zhejiang province, a region with established automotive component manufacturing infrastructure.

The cylinder body is typically cast from aluminium alloy or grey iron, with bore diameters and surface finish critical to seal performance and pedal feel. Piston seals employ ethylene propylene diene monomer (EPDM) or similar elastomer compounds compatible with DOT 3, DOT 4, or DOT 5.1 brake fluids. Reservoir capacity and port thread specifications (commonly M10x1 or 3/8-24 UNF) determine compatibility with specific vehicle platforms. Typical industry practice subjects master cylinders to pressure cycling tests, corrosion resistance testing per ISO 4925, and leak-down verification before release.

Primary end users include automotive assembly plants, independent aftermarket distributors, and commercial vehicle fleet maintenance operations. Repair shops value direct-fit replacement units that reduce installation time and bleed complexity. Import buyers should confirm port configuration (single, tandem, or dual circuit), push-rod thread specification, and whether the unit includes a fluid level sensor. The supplier lists FOB and CIF shipping terms, though exact lead times and minimum order quantities require direct confirmation.

Yuhuan Humbm Machinery Manufacture Co., Ltd. is located in Shuangmiao Industrial Zone, Yuhuan, Zhejiang province, China, postal code 317600. The supplier carries an 'imported' tier designation and 'harbor' trust classification. The response rate shows 0.00 percent with zero average response hours recorded, which buyers should note when evaluating communication reliability. No verified trade data, certification expiry dates, or third-party audit results are present in the available profile.

The listing presents the company as serving both OEM and aftermarket automotive channels with brake master cylinders as a core product line. The supplier advertises flexible minimum order quantities and ISO-referenced quality assurance, though specific certificate numbers or accrediting bodies are not stated. Buyers are advised to request current ISO 9001 or IATF 16949 certificate copies, sample lead times, and recent production capacity figures directly before committing to volume orders.