OE/Part Numbers: 20S-03 20S03
Compatible: for Motorcycle
Key Functions: This idle stepper motor regulates engine idle speed, ensuring stable performance, smooth cold starts, and preventing stalling under varying loads.
Features & Advantages:
1. Direct OEM Fit & Function.
2. High-Quality Components for Reliability.
3. Rigorous Quality Control.
More Details
Key Features
FAQ
Service
Product Overview
The 20S-03 Motorcycle Idle Stepper Motor is a precision idle air control component designed for EFI motorcycle systems. With a compact structure and responsive step movement, this motor is suitable for replacing aging idle control components and restoring proper throttle body operation.
Key Features
Responsive Airflow Adjustment
The 20S-03 stepper motor adjusts airflow precisely to support consistent idle RPM control.
Smooth Step Movement
The motor provides controlled incremental movement, reducing unstable airflow caused by inaccurate positioning.
Reliable Electrical Performance
Quality internal components help maintain stable operation during repeated engine starts and idle adjustments.
Easy Maintenance Replacement
Designed for compatible motorcycle throttle assemblies, allowing convenient replacement during repair services.
Product Applications
Motorcycle EFI systems
Throttle body idle control units
Engine idle regulation systems
Motorcycle repair and maintenance
Spare parts replacement markets
Product Advantages
A properly functioning idle stepper motor helps improve idle stability and supports smoother engine operation, especially under different temperature and load conditions.
Q1: What is the purpose of the 20S-03 stepper motor?
A: It adjusts idle air volume to help maintain the target engine idle speed.
Q2: Can a damaged 20S-03 cause engine shutdown?
A: Yes, incorrect idle airflow control may lead to unstable operation or stalling.
Q3: Is this motor suitable for carburetor motorcycles?
A: It is mainly designed for EFI motorcycle throttle control systems.
Q4: How do I check if the motor needs replacement?
A: Check for idle problems, abnormal RPM changes, and motor response issues.
Q5: Is calibration required after installation?
A: Some EFI systems may require idle relearning after replacement.
Q6: Is the 20S-03 a complete idle control motor assembly?
A: It is supplied as an idle stepper motor replacement component.
| Packaging and delivery | |
| Selling Units | Single item |
| Single package size | 20X20X20 cm |
| Single gross weight | 3.000 kg |
| Lead time | |
| Quantity (units) | Lead time (days) |
| 1 - 1,000 | 31 |
| > 1,000 | To be negotiated |
| Customization options | |
| Bag Design | 500 units |
| Laser Printing | 10,000 units |
| Carton Design | 10,000 units |
Wenzhou Guocheng Automobile Electrical Parts Co., Ltd.
Wenzhou Guocheng Automobile Electrical Parts Co., Ltd. is located in Wenzhou, Zhejiang Province, known as China's capital of auto parts. Established in 1997, the company covers a land area of 3,000 square meters with a built-up area of 10,000 square meters. It is a privately-owned enterprise integrating product development, production, and sales.
Our core products include idle speed motors, idle control valves, throttle position sensors, and other sensor series primarily used in automotive and construction machinery engines. To ensure superior quality, key components such as sensor brushes are imported from Japan and Germany, while films are custom-produced by top-tier domestic and international suppliers. Our products are already supplied to first-tier brands both in China and abroad, and our annual production and sales volume holds a significant position in the OEM market.
To meet production demands and customer requirements, we have continuously invested in advanced production, testing, and experimental equipment from both domestic and international sources. This has significantly enhanced our production inspection and testing capabilities, ensuring consistent and reliable product quality. Currently, we have over 80 employees, including 6 experienced technical engineers and 8 professional technical and inspection personnel, providing strong support for product development and quality control.
Since its inception, the company has adhered to the quality policy of "Continuous Learning, Technological Innovation, Pursuit of Excellence, and Customer Satisfaction." We uphold a "people-oriented" talent philosophy and emphasize a customer-centric approach in quality management, focusing on process control, prevention, continuous improvement, and customer satisfaction. Since 2007, the company has been certified with ISO 9001:2000 and ISO/TS 16949:2009 international quality management system standards.
Over the years, through relentless efforts, innovation, and improvement, Guosheng has earned consistent praise from both new and existing customers for its exceptional product quality, comprehensive service, and competitive pricing. To achieve greater development, our team remains committed to striving harder, learning humbly, and making continuous progress. We constantly summarize experiences and enhance product quality while working with passion and sincerity to collaborate with partners worldwide for mutual success. We sincerely welcome your valuable feedback and visits for guidance.
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