OE/Part Numbers : 897526T 8M0188118
Compatible Brands: for Mercury Outboard Motor
Compatible Vehicles & Years:- Mercury Outboard 4-Stroke Engines 65HP 75HP 80HP 90HP 100HP 115HP 135HP 150HP
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Key Features
FAQ
Stable idle speed is essential for dependable marine engine performance, especially during docking, trolling, and low-speed maneuvering. Our 897526T / 8M0188118 Idle Air Control (IAC) Valve is manufactured to provide accurate airflow regulation, helping the engine maintain a consistent idle under varying electrical and mechanical loads. Every unit is produced with precision-machined components, durable solenoid windings, and corrosion-resistant materials suitable for marine environments. Each valve undergoes functional testing before shipment to verify response consistency and sealing performance. As a manufacturer, we also support OEM and ODM production, custom labeling, and batch quality traceability for global distributors and aftermarket customers.
Q1. Which engines is this IAC valve designed for?
A: This valve is manufactured as a replacement for Mercury Marine engines using OE numbers 897526T and 8M0188118. Buyers should confirm the OE number, engine serial number, or original valve appearance before ordering to ensure compatibility.
Q2. What does the IAC valve do?
A: The Idle Air Control valve regulates bypass airflow around the throttle body while the throttle is closed. It allows the ECU to maintain stable idle speed during cold starts and changing engine loads.
Q3. Is the valve tested before delivery?
A: Yes. Every production batch undergoes electrical resistance inspection, response testing, leakage verification, appearance inspection, and packaging checks to help maintain consistent product quality.
Q4. Can this valve be used in saltwater environments?
A: The housing and metal components are manufactured with corrosion-resistant surface treatment suitable for marine applications. Regular engine maintenance and proper flushing after saltwater use are still recommended.
Q5. Do you provide OEM manufacturing services?
A: Yes. We manufacture under customers' own brands and provide customized packaging, laser marking, barcode labels, and private-label solutions according to project requirements.
Q6. What symptoms may indicate the IAC valve needs replacement?
A: Common signs include unstable idle speed, engine stalling at idle, difficult cold starting, or fluctuating RPM during low-speed operation. Similar symptoms may also result from throttle body contamination or other intake system issues, so diagnosis before replacement is recommended.
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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