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Idle Air Control Valve IAC 803149 3843750 3843751 3857696 for MerCruiser Volvo Penta 4.3L-7.4L MPI

Idle Air Control Valve IAC 803149 3843750 3843751 3857696 for MerCruiser Volvo Penta 4.3L-7.4L MPI

Normaler Preis $30.99 USD
Normaler Preis Verkaufspreis $30.99 USD
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Product Overview

Idle air control valve (IAC / IACV) — a direct replacement part for Mercury MerCruiser and Volvo Penta petrol sterndrives that fits GM MPI marine engines from 4.3 L to 7.4 L. It replaces MerCruiser 803149 and Volvo Penta 3843750, 3843751 and 3857696. Applications include MerCruiser sterndrive and inboard engines and Volvo Penta 4.3, 5.0 and 5.7 litre petrol sterndrives, plus the 6.2 L MX and 7.4 L MPI big-block. The valve meters bypass air around the throttle plate so the ECM can hold a stable idle.

A tired IAC is one of the most common causes of a rough or hunting idle on these engines. Typical symptoms:

  • Rough or erratic idle
  • Idle speed that fluctuates up and down
  • Engine stalls when coming down from full throttle
  • Hard starting
  • High rpm on start-up

Specifications & Attributes

Specification Detail
Condition New / New with tags
Type Idle Air Control Valve (IAC / IACV)
Engine Type GM marine petrol MPI, 4.3 L to 7.4 L V6 / V8
Fits MerCruiser sterndrive and inboard, Volvo Penta petrol sterndrive
Fuel System Multi-port fuel injection (MPI)
Reference OE 803149 (MerCruiser), 3843750 / 3843751 / 3857696 (Volvo Penta)
UPC Does not apply

OEM Cross Reference

Brand OEM Part Numbers
MerCruiser 803149
Volvo Penta 3843750, 3843751, 3857696
GM Marine Replaces the OEM idle air control valve fitted to GM 4.3 L to 7.4 L MPI marine engines

Compatible Engines

Fits the following MerCruiser models:

Model Notes
350 MAG MPI (MCM / MIE) 5.7 L V8 MPI
MX 6.2L MPI 6.2 L V8 MPI
7.4L MPI (L29) 7.4 L V8 MPI big block
Black Scorpion Ski 5.7 L V8 MPI inboard
377 Scorpion MCM & Ski 6.2 L V8 MPI inboard
575 SCi 8.2 L V8 supercharged

Fits the following Volvo Penta petrol sterndrive models, by engine family:

Displacement Models
3.0 L / V6 base 3GXi-P, 4.3GXi-Q, 4.3GXi-225-R, 4.3Gi-200-R, V6-200-A, V6-225-A
4.3 L V6 4.3GXi-B, 4.3GXi-BF, 4.3OSi-B, 4.3OSi-BF, 4.3GXi-C, 4.3GXi-CF, 4.3GXi-D, 4.3GXi-DF, 4.3OSi-C, 4.3OSi-CF, 4.3OSi-D, 4.3OSi-DF, 4.3GXi-E, 4.3GXi-EF, 4.3OSi-E, 4.3OSi-EF, 4.3GXi-F, 4.3GXi-FF, 4.3OSi-F, 4.3OSi-FF, 4.3GXi-G, 4.3GXi-GF, 4.3OSi-G, 4.3OSi-GF, 4.3GXi-J, 4.3GXi-JF, 4.3OSi-J, 4.3OSi-JF
5.0 L V8 5.0GXi-B, 5.0GXi-BF, 5.0OSi-B, 5.0OSi-BF, 5.0GXi-C, 5.0GXi-CF, 5.0GXi-D, 5.0GXi-DF, 5.0OSi-C, 5.0OSi-CF, 5.0OSi-D, 5.0OSi-DF, 5.0GXi-E, 5.0GXi-EF, 5.0OSi-E, 5.0OSi-EF, 5.0GXi-F, 5.0GXi-FF, 5.0OSi-F, 5.0OSi-FF, 5.0GXi-G, 5.0GXi-GF, 5.0OSi-G, 5.0OSi-GF, 5.0OSI-GF, 5.0GXi-J, 5.0GXi-JF, 5.0OSi-J, 5.0OSi-JF, 5.0GXi-N
5.7 L V8 5.7Gi-B, 5.7Gi-BF, 5.7GXi-C, 5.7GXi-CF, 5.7GiI-B, 5.7GXiI-C, 5.7OSi-A, 5.7OSi-AF, 5.7OSXi-A, 5.7OSXi-AF, 5.7Gi-C, 5.7Gi-CF, 5.7Gi-D, 5.7Gi-DF, 5.7GiI-C, 5.7GiI-D, 5.7GXi-D, 5.7GXi-DF, 5.7GXi-E, 5.7GXi-EF, 5.7GXiI-D, 5.7GXiI-E, 5.7OSi-B, 5.7OSi-BF, 5.7OSi-C, 5.7OSi-CF, 5.7OSXi-B, 5.7OSXi-BF, 5.7OSXi-C, 5.7OSXi-CF, 5.7Gi-E, 5.7Gi-EF, 5.7GiI-E, 5.7GXi-F, 5.7GXi-FF, 5.7GXiI-F, 5.7OSi-D, 5.7OSi-DF, 5.7OSXi-D, 5.7OSXi-DF, 5.7Gi-F, 5.7Gi-FF, 5.7GXi-G, 5.7GXi-GF, 5.7OSi-E, 5.7OSi-EF, 5.7OSXi-E, 5.7OSXi-EF, 5.7GiI-F, 5.7GXiI-G, 5.7Gi-G, 5.7Gi-GF, 5.7GXi-H, 5.7GXi-HF, 5.7OSi-G, 5.7OSi-GF, 5.7OSXi-G, 5.7OSXi-GF, 5.7GiI-G, 5.7GXiI-H, 5.7Gi-300-J, 5.7Gi-300-JF, 5.7OSi-300-J, 5.7OSi-300-JF, 5.7GXi-J, 5.7GXi-JF, 5.7OSXi-J, 5.7OSXi-JF, 5.7Gi-300-N, 5.7GXi-N

What's Included

Component Qty
Idle Air Control Valve (IAC) 1

Condition & Warranty

Item Detail
Condition New / New with tags
Warranty Standard
Packaging Sealed retail packaging

Before You Buy

  • Verify your engine model or serial number before ordering
  • Fits GM MPI petrol marine engines 4.3 L to 7.4 L in MerCruiser and Volvo Penta applications
  • Supplied as the valve only — gasket and mounting hardware are not included
  • 30-Day Easy Returns
  • Free Worldwide Shipping
  • OEM Quality Without the Markup
Anzahl

Vollständige Details anzeigen

Before You Buy

Frequently Asked Questions

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We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.

See our full Refund Policy for complete details.

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Free international shipping on every order — no minimums. We operate a global warehouse network with a main distribution centre in Asia (10-20 business days). We also hold stock in regional warehouses across the United States, Germany, the United Kingdom, Australia, and Poland (opening soon) — most orders arrive in 1-3 business days within those countries and in 2-8 business days to nearby regions. Tracking included.

See our full Shipping Policy.

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