805224A1 Idle Air Control Valve for MerCruiser Volvo Penta OMC GM | JLM Marine

Idle Air Control Valve for MerCruiser, Volvo Penta, OMC, GM V6 & 305 350 454 502 EFI – 805224A1

This high-quality aftermarket Idle Air Control Valve is designed to fit a wide range of marine applications, including MerCruiser 4.3L, 5.0L, 5.7L, 7.4L, and 8.2L engines with TBI, MPI, and EFI systems, as well as Volvo Penta 4.3 and 5.0 series engines. It ensures precise idle control and optimal engine performance across GM V6 and V8 configurations including 305, 350, 454, and 502 EFI applications.

This valve directly replaces OEM part numbers 805224A1, 18-7632-1, 47033, 9-33401, 3855185, and 3855194, providing a cost-effective solution without compromising reliability.

• Complete assembly includes all components shown in product images
• Compatible with multiple marine fuel injection systems (TBI, MPI, EFI)
• Drop-in replacement for easy installation

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

• All parts shown in product pictures

Installation Guide

1. Disconnect the negative battery cable to ensure safe working conditions.
2. Locate the Idle Air Control Valve on your engine, typically mounted on the throttle body assembly.
3. Disconnect the electrical connector from the valve by pressing the release tab and pulling gently.
4. Remove the mounting bolts securing the valve to the throttle body using the appropriate socket or wrench.
5. Carefully remove the old valve and clean the mounting surface on the throttle body to ensure a proper seal.
6. Inspect the O-ring or gasket; replace if damaged or worn to prevent air leaks.
7. Position the new Idle Air Control Valve onto the throttle body, aligning the mounting holes.
8. Install and hand-tighten the mounting bolts, then torque to manufacturer specifications (typically 20-30 in-lbs).
9. Reconnect the electrical connector to the valve, ensuring it clicks securely into place.
10. Reconnect the negative battery cable.
11. Start the engine and allow it to idle; the engine control module will automatically calibrate the valve.
12. Monitor idle performance and check for any air leaks or error codes.

Troubleshooting & FAQ

Q: How do I confirm this Idle Air Control Valve fits my engine?
A: Check the Compatible Engine Models table above for your specific MerCruiser, Volvo Penta, OMC, or GM engine model. Additionally, compare the part numbers listed in the cross-reference table with your original valve to ensure proper fitment.

Q: What are the signs that my Idle Air Control Valve needs replacement?
A: Common symptoms include erratic or high idle speed, engine stalling at idle, difficulty starting, or the check engine light illuminating with idle control-related fault codes. If you experience any of these issues, inspect and test your IAC valve.

Q: How often should I replace the Idle Air Control Valve?
A: There is no set replacement interval for IAC valves; they should be replaced when they fail or exhibit performance issues. Regular maintenance, including cleaning carbon buildup, can extend the valve's lifespan significantly.

Q: What's the difference between this aftermarket valve and the OEM part?
A: This is an aftermarket replacement part (not OEM). We manufacture to OEM specifications using comparable-grade materials in an ISO9002-certified facility. Each unit is inspected to ensure it meets performance standards, offering a reliable and cost-effective alternative.

Q: OEM vs. Aftermarket?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.