D5103 40397102 AT-05103R 7077213 7702217296 Idle Air Control Valves

Product Introduction

The D5103 Idle Air Control Valve is a stepper-motor type component used in the engine's idle-speed control system. Rather than controlling the main throttle opening, the IAC valve manages bypass airflow around the throttle body, allowing the engine control system to adjust the amount of air entering the engine while the throttle is closed.

This model is identified by several OE and cross-reference numbers, including D5103, 40397102, AT-05103R, 7077213, and 7702217296. These references are associated with selected Renault applications, including Megane and Scenic models.

How the IAC Valve Works

During idle, the throttle plate remains nearly closed, but the engine still needs a controlled amount of air to continue running. The D5103 stepper motor moves the internal valve according to control signals from the engine management system.

This allows the idle air passage to be adjusted as engine conditions change, such as during cold starting, electrical load changes, or other operating conditions. A properly functioning IAC valve therefore plays a role in keeping idle speed within the expected range.

Quality & Production Control

Guocheng focuses on maintaining consistent dimensions, electrical performance, and functional reliability across our Idle Air Control Valves and other automotive engine components. We apply quality control throughout the production process, from incoming materials to final delivery.

Our quality control process includes:

Incoming Inspection: We inspect raw materials and components before production.
Production Inspection: We follow standardized work instructions and conduct inspections during manufacturing.
Final Inspection: We check product quantity, appearance, dimensions, and functional performance before packing.
Delivery Inspection: We inspect packaging and confirm customer-specific requirements before shipment.

We have established quality management practices based on international standards and have been certified under ISO 9001:2000 and ISO/TS 16949:2009 since 2007. We also continue to invest in production, testing, and inspection equipment to support consistent product quality for repeat orders.

Packaging & Bulk Supply

At Guocheng, we prepare our automotive components for aftermarket distribution and bulk orders according to customer requirements.

We can provide:

Individual protective packaging
Neutral packaging
Customized packaging
Product labels
Outer cartons
Customer-specific packaging requirements

For distributors purchasing multiple IAC valve references, we also support multi-model and bulk orders, helping customers build a broader aftermarket product range through one manufacturing partner.

Q1: What are the main cross-reference numbers for this IAC valve?
A: The main references are D5103, 40397102, AT-05103R, 7077213, and 7702217296.

Q2: Which vehicles use the D5103 IAC valve?
A: The reference is associated with compatible Renault Megane and Scenic applications, depending on engine configuration.

Q3: Can distributors order this product in bulk?
A: Yes. The product is suitable for wholesale, distribution, and aftermarket replacement-parts orders.

Q4: Can I order neutral packaging?
A: Neutral packaging can be arranged according to the supplier's packaging options and order requirements.

Q5: Can you supply other IAC valve references?
A: Yes. Buyers can provide a reference number or application list for checking other compatible IAC valve models.

Q6: What information should I provide for a quotation?
A: Quantity, OE/reference number, application, packaging requirements, and destination are useful for preparing a B2B quotation.