Brake calipers, engineered beyond OE.
25+ years of caliper making for the global aftermarket and China's OE light-bus programs — 1,300+ part numbers, IATF 16949 certified, every caliper pressure tested.
Four lines. One braking specialist.
From EPB calipers on Chinese OE light buses to TAXUS six-piston kits for the street, every line is designed, machined and validated under one roof.
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Aluminum, iron and EPB calipers for European, American, Japanese and Korean vehicles, with 50–100+ new models added every year.
- FinishesOil-dip · Zinc · Powder · Paint
- PistonsSteel · Aluminum · Phenolic
- Inspection100% pressure + torque
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Front and EPB rear calipers for fuel and new-energy light buses and logistics vehicles, including self-driving series.
- EPB piston51 / 57 mm
- Parking clamp force38,000 N
- Full load2.5–5.5 T
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Calipers, rotors and complete kits engineered from OE data to lift braking performance — private brand or fully customized.
- Series6-piston · 4-piston · Heavy-duty
- RotorsHigh-performance
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Pistons, bolts, rubbers, clips, springs, cables and levers in flexible quantities, plus rotors, pads, master cylinders and precision CNC machining.





Large-piston EPB calipers for China's light buses.
TOPWEST reports being the first manufacturer in China of large-parking-force EPB electronic calipers for light buses. Every program runs from 3D design, braking-force calculation and CAE analysis through samples, testing and series production.
From incoming steel to sealed carton.
Three inspection gates and an in-house validation lab stand between raw material and your warehouse. Quality & R&D →
Incoming material
Packaging, labels, appearance, dimensions, physical, chemical and mechanical properties checked against approved samples — non-conforming lots are returned.
In-process
First-piece, on-site patrol and last-piece inspection under a three-level check: operator, team leader, QC inspector.
Final & outgoing
Appearance, size, fit & function, marking, label and packaging checked and reported before every shipment.

main tests and equipment — durability, torsion fatigue, EPB durability, inertia dynamometer, salt spray, high/low temperature, metallographic analysis and more.
Certified for OE. Proven in the aftermarket.
Management systems and government recognitions that buyers can verify.
IATF 16949:2016
Automotive quality management system.
ISO 14001:2015
Environmental management system.
SRMSC
Listed among TOPWEST's certificates.

- National High-tech Enterprise
- Zhejiang Technology-based SME
- Zhejiang "Specialized, Characteristic, New" S&T Enterprise
- Wenzhou High-Growth Industrial Enterprise
- Wenzhou Enterprise Technology R&D Center
"Product can talk."
Wenzhou Topwest Brakes Co., Ltd. is based in Wenzhou, Zhejiang — one of China's most important auto-parts production bases — on a 13,000 m² site in Wencheng County.
We make brake calipers for the worldwide automotive aftermarket and the Chinese domestic OE market: light, medium and heavy vehicle brake assemblies, high-performance brake assemblies and specialty applications. Our engineers bring 25+ years of industry experience, supported by CAD / UG / Pro-E and more than 8% of output value reinvested in R&D every year.
Our mission is simple: making brake products that escort life on the road.



Answers buyers ask first.
What does TOPWEST manufacture?
TOPWEST (Wenzhou Topwest Brakes Co., Ltd.) manufactures brake calipers for the worldwide automotive aftermarket and the Chinese domestic OE market, plus TAXUS high-performance big brake kits, caliper components, rotors, pads, master cylinders and customized CNC-machined parts.
How many brake caliper part numbers does TOPWEST offer?
More than 1,300 aluminum, iron and EPB caliper part numbers covering European, American, Japanese and Korean vehicles. 50–100+ new models are developed every year and 6,000+ caliper components are kept in the warehouse.
Which certifications does TOPWEST hold?
IATF 16949:2016 quality management, ISO 14001:2015 environmental management and SRMSC certificates. TOPWEST is also recognized as a National High-tech Enterprise and a Zhejiang Specialized, Characteristic, New S&T Enterprise.
Is every caliper tested before shipment?
Yes. Every aftermarket caliper is 100% pressure tested and pin/bolt torque inspected, and every shipment passes final inspection of appearance, size, fit and function, marking, label and packaging.
What surface finishes are available?
Oil-dip, zinc-plated, powder-coated and painted finishes, chosen for corrosion and rust protection. Pistons are available in steel, aluminum or phenolic with EPDM rubber parts and premium silicone lubrication.
Does TOPWEST supply OE vehicle manufacturers?
Yes. Since 2020 TOPWEST has developed calipers for China's light-bus market and supplies manufacturers including Kinglong, Yangzhou Yaxing Bus, Suzhou Kinglong, Zhongtong Bus and CRRC, including EPB calipers with 51 / 57 mm pistons and 38,000 N parking clamping force.
Can TOPWEST develop OEM or customized brake products?
Yes. TOPWEST runs a six-stage OEM development process from requirements to mass production, develops aftermarket parts from OE samples, and offers one-stop custom design, testing and manufacturing for performance brakes. The company holds 20+ invention and design patents and invests over 8% of output value in R&D each year.
Where is TOPWEST located and how do I request a quote?
The factory (13,000+ m²) is at #11 Chuangye Road, Baizhangji Town, Wencheng County, Wenzhou, Zhejiang, China. Email Sales@topwestcn.com, call +86 577 6778 1111 or message WhatsApp +86 139 6893 8151.
Send us your part numbers.
Tell us the OE or TOPWEST numbers, quantities and target market — our sales team replies by email.
- EmailSales@topwestcn.com
- Phone+86 577 6778 1111
- WhatsApp+86 139 6893 8151
- Address#11 Chuangye Road, Baizhangji Town, Wencheng County, Wenzhou, Zhejiang 325300, China