881447T Mercury Control Valve | Genuine Used Part

🔧 Product Description

Genuine Mercury Idle Air Control Valve - Part Number: 881447T

A genuine used Mercury idle-air control valve for selected Mercury 115HP and 225HP EFI four-stroke outboards.

The electronically controlled valve meters bypass air around the closed throttle plates. It allows the engine control module to maintain the correct idle speed during cold starting, warm-up, gear engagement and changes in electrical load.

⚙️ Key Features

• Genuine Mercury Marine idle-air control valve
• Correct Mercury part number 881447T
• Used on Yamaha-manufactured Mercury four-stroke platforms
• Controls throttle-bypass airflow at idle
• Recmar and WSM aftermarket replacements available

🚤 Compatibility

Commonly used on

• Mercury Yamaha-built four-stroke EFI intake systems
• Electronic idle-speed control systems

Typically suits

• Engine models:
• Mercury 115HP EFI - serial 0T178500 through 1B366822
• Mercury 225HP EFI - serial 0T653945 and above
• Yamaha F115 applications using 68V-1312A-00-00
• Yamaha F200 applications using 68V-1312A-00-00
• Yamaha F225 applications using 68V-1312A-00-00
• HP Range: 115HP - 225HP
• Engine Type: Electronic fuel-injected four-stroke outboard
• Year Range: Mercury applications approximately 2001 - 2004, dependent on serial number

🔌 Function

The valve adjusts bypass airflow so the ECU can maintain a steady idle without opening the main throttle plates.

⚠️ Common Signs of Failure

• Engine stalls at idle
• Idle speed is too high, too low or unstable
• Difficult cold starting
• Engine stalls when shifted into gear
• Idle-air-control fault code

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 881447T final Mercury OEM service reference
• 881447 shortened Mercury reference

OEM / Related Numbers

• 881447T
• 881447
• Yamaha: 68V-1312A-00-00
• Suzuki: 18137-93J00
• Suzuki: 18137-93J01
• Polaris: 3131629
• Polaris: P3131629

Aftermarket / Verified Equivalents

• Recmar: REC881447T
• WSM: 779-225

📦 Condition

• Genuine used Mercury part
• Removed from running engine where applicable
• In good working condition unless otherwise stated