OE/Part Numbers : HITACHIAESP2, 4.02003.59.0, 7700859134, 859134, 59514681
Compatible Brands: for Renault, Volvo
Compatible Vehicles & Years:- For Renault Laguna - For Volvo S40 - Volvo V40
Key Functions: This idle air control valve regulates the engine's idle speed by controlling the amount of air bypassing the throttle body.
Features & Advantages:
1. Direct OEM Fit & Function.
2. High-Quality Components for Reliability.
3. Rigorous Quality Control.
More Details
Key Features
FAQ
Service
The AESP20912 is an idle air control valve designed for Renault Laguna and Volvo S40/V40 models. We carry several cross-reference numbers—HITACHI AESP2, 4.02003.59.0, 7700859134, 859134, and 59514681—so you can match them to the original part without confusion.
This idle control valve sits on the throttle body and manages the air that bypasses the throttle plate. When the engine is at idle, the IAC valve opens and closes to maintain a steady speed, compensating for loads like air conditioning, power steering, or the alternator kicking in. If the idle air valve sticks or the solenoid weakens, the engine starts hunting for idle, stalls at junctions, or fluctuates annoyingly when you stop. Replacing it with a correctly functioning idle air control valve restores the smooth, predictable idle these European models are known for.
Q1: Can I order a small batch to test the product before committing to a large order?
A: Yes, we support small-batch trial production with a minimum order quantity (MOQ) of just 10 pieces, allowing you to fully verify the product in real-world applications before scaling up.
Q2: What is the delivery time, and what shipping methods are available?
A: Our standard delivery time is 7–15 days, and we offer flexible shipping options via Sea, Air, DHL, or FedEx to suit your logistics needs.
Q3: How do you guarantee the quality of these Idle Air Control Valves?
A: We are an IATF 16949 certified manufacturer, and every unit is 100% tested to ensure high-quality performance and direct OEM fit for Renault and Volvo vehicles.
Q4: What after-sales support do you provide if I encounter any issues?
A: Our dedicated team will quickly intervene to analyze any issues and provide prompt solutions, including replacements under our 1-year warranty, to ensure your business is not impacted.
Q5: Which specific car models and OE numbers does this part replace?
A: It fits the Renault Laguna, Volvo S40, and Volvo V40, replacing OE numbers such as HITACHIAESP2, 7700859134, 859134, and 59514681.
| 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 |
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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