36550-ZY3-003 Honda Valve Assy & Spacer | Genuine Used Part

🔧 Product Description

Genuine Honda Electronic Air Control Valve and Throttle-Body Spacer Assembly - Part Number: 36550-ZY3-003

A genuine Honda EAC / IAC valve assembly supplied with its throttle-body spacer where fitted for selected BF175, BF200, BF225 and BF250 V6 four-stroke outboards.

The valve controls bypass air around the throttle plate to regulate engine idle speed. The spacer provides the calibrated air passage and correct mounting position between the valve and throttle body.

⚙️ Key Features

• Genuine Honda V6 EAC / IAC valve
• Correct part number 36550-ZY3-003
• Supplied with throttle-body spacer where stated
• ECM-controlled idle-air bypass system
• Used across Honda BF175-BF250 V6 engines

🚤 Compatibility

Commonly used on

• Honda large-V6 electronic throttle-body systems

Typically suits

• Engine models:
• Honda BF175
• Honda BF200
• Honda BF225
• Honda BF250
• Standard and counter-rotation models with the ZY3 throttle body
• Selected early and later V6 engines where 36550-ZY3-003 is specified
• HP Range: 175HP - 250HP
• Engine Type: Honda V6 EFI four-stroke outboard
• Year Range: Approximately 2002 onward, dependent on engine model

🔌 Function

The EAC valve meters a controlled quantity of air around the closed throttle plate. The ECM changes the valve position to stabilise idle speed as temperature, alternator demand and gear load change.

⚠️ Common Signs of Failure

• High, low or hunting idle
• Engine stalls when shifted or returned to neutral
• Hard starting, particularly when cold
• Check-engine warning or idle-control fault
• Valve sticks because of carbon, salt or oil contamination

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 36550-ZY3-003 current documented EAC-valve reference

OEM / Related Numbers

• 36550-ZY3-003
• 16404-ZY3-000 throttle-body spacer
• 16405-ZY3-000 related spacer gasket
• 16400-ZY3-A01 related throttle-body assembly
• Related EAC valve screws and electrical connector

Aftermarket / Verified Equivalents

• Generic 36550-ZY3-003 replacement EAC / IAC valve
• Aftermarket BF175 / BF200 / BF225 / BF250 idle valve
• Specialist-cleaned and flow-tested valve assembly
• Aftermarket spacer and throttle-body gasket sets

📦 Condition

• Genuine used assembly
• Supplied with spacer where stated
• Removed from running engine where applicable
• In good working condition unless otherwise stated