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Premium Starter Solenoids & Relays

Engineered for reliability. Trusted by leading motorcycle, automotive, and marine brands worldwide since 1998.

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About HaikoParts

Founded in 1998, SHIYUAN Auto Parts Factory is a professional manufacturer specializing in the research, development, and production of motorcycle starter relays. With over 27 years of industry experience, we have become a trusted supplier to leading motorcycle brands both domestically and internationally.

Our factory is located in Wenzhou, China, covering a significant area with advanced production lines, precision testing equipment, and a skilled workforce. We are committed to high quality, reliable performance, and consistent innovation in our product design and manufacturing processes.

ISO 9001 Certified CE & RoHS Compliant OEM/ODM Services
Factory Interior

Our Products

High-performance starter relays and solenoids for motorcycle, car, and marine applications. Built for durability, precision, and long service life.

Motorcycle Starter Relay 12V

Motorcycle Starter Relay 12V

High-conductivity contacts with fast response. Ideal for standard motorcycle engines.

  • 12V DC Operation
  • Vibration Resistant
  • Waterproof Design
Car Starter Solenoid 12V

Car Starter Solenoid 12V

Robust solenoid for automotive starter motors. Ensures reliable engine cranking.

  • High Current Capacity
  • Heat Resistant
  • Corrosion Protected
Marine Starter Solenoid

Marine Starter Solenoid

Designed for boats and yachts. Superior waterproof and salt-resistant performance.

  • IP67 Waterproof Rating
  • Anti-Corrosion Coating
  • 12V/24V Compatible
Universal Starter Relay

Universal Starter Relay

Versatile relay compatible with multiple vehicle types. Easy installation.

  • Multi-Vehicle Fit
  • Plug-and-Play
  • Long Service Life
24V Heavy-Duty Relay

24V Heavy-Duty Relay

For trucks, commercial vehicles, and industrial engines requiring 24V systems.

  • 24V DC Operation
  • High Load Capacity
  • Durable Housing
OEM Custom Relay

OEM Custom Relay

Tailored solutions for original equipment manufacturers. Full design support.

  • Custom Specifications
  • Prototyping Available
  • Volume Production
High-Current Solenoid

High-Current Solenoid

Engineered for high-amperage applications. Stable performance under load.

  • 300A+ Capacity
  • Thermal Protection
  • Copper Terminals
Miniature Relay Module

Miniature Relay Module

Compact design for space-constrained installations. Ideal for modern vehicles.

  • Space-Saving Design
  • Low Power Consumption
  • SMD Technology

Why Choose HaikoParts?

Our commitment to quality, innovation, and customer partnership sets us apart in the global auto parts industry.

High Conductivity

Premium copper contacts ensure minimal resistance and maximum power transfer.

Durable & Reliable

Built to withstand vibration, heat, and harsh environments for long-term performance.

Waterproof Design

Sealed enclosures protect against moisture, ideal for marine and outdoor use.

OEM/ODM Support

Custom engineering and volume manufacturing for global automotive partners.

27+
Years Experience
1998
Founded
50+
Countries Served
10M+
Units Produced

Frequently Asked Questions

Find answers to common questions about our products and services.

Get in Touch

Reach out to HaikoParts for product inquiries, OEM collaboration, or technical support.

Contact Information

WhatsApp: +86-1380 653 2340

Telegram: +86-1380 653 2340

WeChat: +86-1380 653 2340

QQ: 289396221

Email: [email protected]

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