OE/Part Numbers: 20S-08 20S08
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-08 Motorcycle Idle Stepper Motor is designed for EFI motorcycle throttle systems to control idle air volume and maintain stable engine speed. The stepper motor operates according to ECU signals, adjusting the idle air passage through precise incremental movement to support smooth engine operation during starting, idling, and low-speed conditions. Idle air control motors regulate airflow around the throttle plate to help maintain target idle speed under different operating conditions.
This replacement idle control motor features accurate positioning, stable response, and durable construction, making it suitable for motorcycle maintenance, repair services, and aftermarket spare parts supply.
Key Features
Precise Idle Air Regulation
The 20S-08 stepper motor adjusts the bypass airflow accurately, helping the ECU maintain consistent idle RPM.
Reliable Step Movement
The internal mechanism provides controlled movement steps, ensuring stable valve position adjustment during repeated engine operation.
Durable Motorcycle Performance
Designed for motorcycle environments, the motor offers good resistance against vibration, temperature variation, and continuous working cycles.
Replacement Compatibility
The 20S-08 design provides a convenient replacement option for damaged or worn idle air control motors in compatible throttle assemblies.
Product Applications
Motorcycle EFI throttle bodies
Idle air control systems
Engine idle speed regulation
Motorcycle repair and maintenance
Spare parts distribution
Installation Notes
Confirm the original motor model, connector type, and mounting structure before installation. Some EFI systems may require idle position relearning after replacement.
Q1: What is the function of the 20S-08 idle stepper motor?
A: It controls idle airflow to help maintain stable engine speed.
Q2: Is the 20S-08 motor the same as a TPS sensor?
A: No. A TPS detects throttle position, while the stepper motor adjusts idle airflow.
Q3: What symptoms indicate motor failure?
A: Unstable idle, engine stalling, or irregular RPM changes may indicate a problem.
Q4: Can this replace an original 20S-08 motor?
A: It is designed as a replacement component for compatible applications.
Q5: Does installation require ECU programming?
A: Most applications do not require programming, but some motorcycles may need relearning.
Q6: How can compatibility be confirmed?
A: Compare the original part number, connector, and throttle body structure.
| Packaging and delivery | |
| Selling Units | Single item |
| Single package size | 20X20X20 cm |
| Single gross weight | 3.0kg |
| 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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