West Side Auto

What West Side Auto does

West Side Auto corresponds to Ningbo Shuanglin Automotive Parts Co., Ltd. (Shuanglin Stock, 深�的A股 stock code 300100), a publicly listed Chinese automotive components manufacturer founded in 1987 in Ninghai County, Zhejiang Province, by Wu Yonglin. The company operates four primary product lines: electric drive systems for new energy vehicles (180 and 155 platform motors, flat-wire three-in-one drive assemblies, integrated electric bridges, motor controllers, VMS, BMS), wheel hub bearings across three generations (first through third generation hub bearing units with design life up to 500,000 km), automotive interior and exterior trim components and precision injection molded parts, and electromechanical technology including seat drive systems, seat motors, electronic control modules, flexible shafts, stamping parts, and precision gears. Shuanglin also operates a newer line of reverse-type planetary roller screws for robotics and a corner module intelligent chassis platform for autonomous vehicles, exemplified by the K7 248-ton autonomous mining truck launched globally in 2026.

The company employs a B2B direct-to-OEM and Tier 1 supplier business model, manufacturing under long-term multi-year supply contracts with quote-based pricing. Its direct OEM customers include Tesla, Audi, Maserati, Infiniti, Great Wall Motors, Chery, Dongfeng Nissan, SAIC-GM-Wuling, FAW Pentium, BYD, and others; Tier 1 supply relationships span Bosch, ZF, Magna, Faurecia, FORVIA, Adient, Brose, Lear, TRW, and United Automotive Electronics. An aftermarket distribution channel sells wheel hub bearings and components, including to Advance Auto Parts. Manufacturing is distributed across more than 20 production bases in China plus sales and after-sales service networks in Shanghai, Europe, North America, and South America, with five R&D centers and academic partnerships with Tsinghua University, Southeast University, Zhejiang University of Technology, Hunan University, and others. The company is certified to IATF 16949, ISO 9001, ISO 14001, CCC, CE, and CNAS standards, and was designated a National Green Factory by MIIT in 2023.

Name

West Side Auto

Legal name

宁波双林汽车部件股份有限公司 (Ningbo Shuanglin Automotive Parts Co., Ltd.)

Website

https://westsideautoandtowing.com

Company type

Public

Founded year

1987

Operating status

Operating

Headcount range

11–50 employees

Short description

Shuanglin is a China A-share listed (300100) Tier 1 automotive components manufacturer founded in 1987, producing electric drive systems, wheel hub bearings, automotive trim, and electromechanical components for global OEMs and Tier 1 suppliers including Tesla, Audi, Bosch, and ZF, across 20+ production bases in China with an expanding robotics and autonomous chassis product line.

Ownership category

akta.pro rank

Product category

Automotive Components Manufacturing

NAICS

Motor Vehicle Electrical and Electronic Equipment Manufacturing (336320), Motor Vehicle Parts Manufacturing (3363)

SIC

Motor Vehicle Parts & Accessories (3714)

akta.pro industry

PRIMARYIMACAJAL

Automotive Electric Motors & Actuators Manufacturing (EPS/Brake-by-wire/Seat/Window)

Industrials, Manufacturing & Construction/Automotive & Mobility Manufacturing/Automotive Electrical & Electronics Manufacturing (ECUs/Sensors/Wiring/Lighting)

SECONDARYIMACAJAC

Automotive ECUs/Control Modules & Embedded Electronics Manufacturing

Industrials, Manufacturing & Construction/Automotive & Mobility Manufacturing/Automotive Electrical & Electronics Manufacturing (ECUs/Sensors/Wiring/Lighting)

SECONDARYIMACAAAK

Passenger Vehicle Electrical & Electronics Manufacturing (ICE)

Industrials, Manufacturing & Construction/Automotive & Mobility Manufacturing/Passenger Vehicle Manufacturing (ICE)

Keywords

• Automotive parts manufacturing
• Electric drive systems
• Wheel hub bearings
• Automotive interior trim
• OEM component supplier

Headquarters

HQ city

Shanghai (Shanghai HQ)

HQ country

China

HQ region

Asia

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Automotive Components OEM Supply: Design, development, manufacturing and sales of automotive components supplied directly to automotive OEMs and Tier 1 suppliers. Products include electric drive systems, wheel bearings, automotive trim and interiors, and precision parts. Revenue is generated through long-term supply contracts with major automotive manufacturers.
2. Aftermarket (AM) Sales: Aftermarket sales of automotive components including wheel hub bearings through distribution networks.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

West Side Auto (underlying entity: Ningbo Shuanglin Automotive Parts, 双林汽车部件) designs, manufactures, and sells automotive components to vehicle OEMs and Tier-1 suppliers. Core offerings span new-energy vehicle electric drive systems (flat-wire motors, reducers, controllers, BMS, VCU, MCU modules), wheel hub bearing units including a third-generation QFDAS300-Q4 series, automotive interior/exterior trim parts, seat adjustment drive systems with ECUs, and electromechanical precision components. The company is publicly listed (A-share 300100, Shenzhen Stock Exchange) and operates more than 20 production bases in China, with recent expansion into planetary roller screw actuators for humanoid robotics.

Product overview

West Side Auto (双林智造) is a modern high-tech enterprise integrating R&D, design, production, sales, and services in automotive components. The company operates four main business segments: Electric Drive Systems (电驱动系统) for new energy vehicles with 180/155 platform motors and integrated electric bridges; Wheel Hub Bearings (轮毂轴承) spanning three generations with up to 500,000 km design life; Automotive Decorative Parts (汽车饰件) including interior/exterior components and precision injection parts; and Electromechanical Technology (机电科技) covering seat motors, drives, flexible shafts, and stamping parts. The portfolio includes over 20 production bases across China (Ningbo, Liuzhou, Chongqing, Wuhan, Tianjin, Shenyang, Qingdao, Jingzhou, Jiaxing, Suzhou, Wuhu) plus sales/service networks in Shanghai, Europe, North America, and South America. The company is A-share listed (stock code 300100) and serves major OEMs including FAW-Volkswagen, Tesla, SAIC-GM-Wuling, Dongfeng, Great Wall, Chery, and FAW Bestune.

Differentiator

Problem solved

Functional benefit

Brands

• 电驱动系统 (Electric Drive System): Electric drive systems for new energy vehicles, including motors, controllers, VMS, BMS
• 轮毂轴承 (Wheel Hub Bearing)
• 汽车饰件 (Automotive Trim)
• 机电科技 (Mechanical & Electrical Technology)
• 汽车精密注塑件 (Automotive Precision Injection Molded Parts)
• 软轴 (Soft Shaft)
• 座椅驱动器 (Seat Drive System)
• 电机 (Motor)
• 第三代轮毂轴承 (Third-Generation Hub Bearing)
• 第二代轮毂轴承 (Second-Generation Hub Bearing)
• 第一代轮毂轴承 (First-Generation Hub Bearing)
• 机器人行星滚柱丝杠 (Robot Planetary Roller Screw)

Products and services

• Flat-wire Three-in-One Electric Drive System (NEV powertrain assembly) Integrated electric drive assembly for new-energy vehicles, combining a flat-wire permanent magnet motor, single-speed reducer, and motor controller into a single module; supplied to passenger NEV OEMs for powertrain electrification.
• Third-Generation Wheel Hub Bearing Unit (QFDAS300-Q4) Automotive wheel hub bearing unit for passenger vehicles, designed for extended service life, high-speed operation, and integrated ABS sensor support; supplied to OEM chassis programs.
• Automotive Interior and Exterior Trim Parts Plastic and composite interior and exterior trim components (instrument panels, door trim, bumper covers, exterior garnish) manufactured to OEM specifications for vehicle platforms.
• Seat Adjustment Drive System with ECU Motorized seat adjustment drive system with integrated electronic control unit, supplied to OEMs for power seat functionality across passenger vehicle platforms.
• Vehicle Electronic Control Modules (BMS, VCU, MCU) Battery management, vehicle control, and motor control electronic modules developed and supplied to NEV OEMs for powertrain and energy management.
• Reverse Planetary Roller Screw (Humanoid Robot Joint Actuator) Planetary roller screw actuator for humanoid robot joint motion control, developed and supplied to robotics customers as a precision electromechanical component.
• Precision Moulds and Tooling Precision moulds and tooling produced by Ningbo Shuanglin Mould for automotive component production and external mould customers.

Quantifiable outcome

• 85%+ of product verification tests can be completed in-house, ensuring reliability and accelerating development timelines
• +3 more outcomes

Named customers20 records

Segments3 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

14 partnerships are on record, tiered core.

• Tsinghua University School of Vehicle and TransportationcoreStrategic or Co-development Partner · 1 September 2025Technology cooperation agreement signed with Tsinghua University for 'Research and Application of New Energy Vehicle Intelligent Driving Corner Module Technology.' Deep collaborative innovation around intelligent driving technology applications.
• Southeast University (东南大学)coreStrategic or Co-development Partner · 1 March 2025Strategic cooperation signed with Southeast University School of Electrical Engineering for axial flux motor technology development, focusing on cutting-edge electric motor technology research and development for new energy vehicles.
• Sungrow Power Technology (阳光电动力科技有限公司)coreStrategic or Co-development Partner · 9 July 2024Strategic alliance formed between Shuanglin New Energy and Sungrow Power for new energy drive motor and controller collaboration. Combined resources and technology advantages to jointly advance the new energy vehicle industry, creating complementary synergies.
• Wuxi Kezixin (无锡科之鑫)coreTechnology or IntegrationShuanglin partnered with Wuxi Kezixin, which possesses core technology for internal thread grinding machines. Kezixin's self-developed reverse planetary roller screw grinding machines achieve international standard precision at reduced equipment cost.
• Hunan University (湖南大学)coreStrategic or Co-development PartnerLong-standing R&D partnership with Hunan University for wheel hub bearing technology development. Jointly developed third-generation hub bearing manufacturing and testing technology, winning multiple provincial science and technology awards.
• Hunan Institute of Science and Technology (湖南理工学院)coreStrategic or Co-development PartnerPartnership with Hunan Institute of Science and Technology for high-end wheel hub bearing unit manufacturing testing key technology and equipment development, awarded Hunan Province Science and Technology Progress Award.
• Zhejiang University of Technology (浙江工业大学)coreStrategic or Co-development PartnerJoint R&D center established with Zhejiang University of Technology in 2013. Multiple postdoctoral researchers from this partnership have completed their programs. Collaboration in mechanical engineering, material science, and manufacturing technology.
• Zhengzhou University (郑州大学)coreStrategic or Co-development PartnerPostdoctoral research collaboration for joint cultivation of doctoral researchers. Projects include intelligent automotive parts production assembly workshop key technology research.
• Ningbo University (宁波大学)coreStrategic or Co-development PartnerPostdoctoral research collaboration for joint cultivation of doctoral researchers. Projects include special engineering plastic microcellular injection molding technology.
• Jiangxi University of Science and Technology (江西理工大学)coreStrategic or Co-development PartnerPostdoctoral research collaboration for joint cultivation. Research projects include AT transmission duct-type pressure pulse attenuator design and research, and ultrasonic energy field assisted lightweight alloy stamping forming research.
• Hunan University of Science and Technology (湖南科技大学)coreStrategic or Co-development PartnerPostdoctoral research collaboration for joint cultivation of doctoral researchers in automotive and mechanical engineering fields.
• Zhejiang Wanli College (浙江万里学院)coreStrategic or Co-development PartnerAcademic partnership for postdoctoral research collaboration and joint cultivation of researchers in engineering and technology fields.
• SAP (via Shanghai JiuHui)coreTechnology or IntegrationSAP ERP implementation project covering SD, PP, MM, FI, CO, QM modules across seat, precision, and trim business units. Shanghai JiuHui Information Technology Co., Ltd. serves as implementation consultant.
• Shanghai JiuHui Information Technology (上海九慧信息科技有限公司)coreImplementation/ SI/ Consulting PartnerImplementation consulting partner for SAP ERP project, providing methodology, implementation roadmap, and system integration support.

Scale indicators9 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• ZF Friedrichshafen: Global Tier 1 automotive supplier with chassis, driveline, and e-mobility products. Awarded Shuanglin for quality (2024 ZF Outstanding Quality Award) and serves as both customer and broad incumbent competitor in EV drive and chassis systems.
• NTN Corporation: Global Japanese bearing manufacturer with strong wheel hub bearing business for automotive OEMs. Established global incumbent competing with Shuanglin's third-generation wheel hub bearings in both OEM and aftermarket channels.
• Schaeffler Group: Global automotive and industrial supplier with strong wheel bearing, steering, and e-mobility businesses. Broader incumbent competing with Shuanglin's wheel hub bearing division globally and offering competing EV drive components.
• Huayu Automotive (华域汽车): Largest Chinese automotive parts company with broad product portfolio across interior, exterior, electronics, and NEV components. A broader incumbent comparable in scale and product breadth to Shuanglin, though more diversified across many OEMs and product categories.

Direct peers

• Inovance Technology (汇川技术): Leading Chinese supplier of EV motors, motor controllers, and electric drive systems. Direct competitor to Shuanglin's electric drive systems business unit, both targeting Chinese NEV OEMs with integrated motor-controller solutions.
• Wanxiang Qianfang (万向钱潮): Major Chinese automotive parts manufacturer producing wheel hub bearings, chassis, and driveline components. Closely comparable to Shuanglin's wheel hub bearing business and overall diversified auto parts profile, both serving Chinese OEM customers with similar product categories.
• Tuopu Group (拓普集团): Ningbo-headquartered Chinese auto parts manufacturer with diversified product portfolio including NVH, interior, intelligent cockpit, and EV components. Comparable to Shuanglin as a diversified Chinese auto parts supplier with strong OEM relationships and growth in NEV-related components.
• Founder Motor (方正电机): Chinese manufacturer specializing in EV drive motors and automotive micro-motors. Direct peer in the electric drive systems and seat/window motor categories, both serving Chinese NEV and traditional OEMs.
• Ningbo Jifeng Auto Parts (继峰股份): Chinese supplier of automotive seat headrests, armrests, and seat systems serving global Tier 1s (Adient, Faurecia, Lear). Comparable to Shuanglin's electromechanical division seat drive and motor business, both producing seat components for global seat integrators.

Emerging players

• Nexteer Automotive: Specialist in steering and driveline systems including electric power steering and steer-by-wire. Emerging player in electrified motion control that intersects with Shuanglin's electromechanical and electric drive system portfolios in automotive actuator categories.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/west-side-auto

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries16 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about West Side Auto