18151-ZY3-A00ZA Honda Exhaust Guide (L) | Genuine Used Part

🔧 Product Description

Genuine Honda V6 Left Exhaust Guide - Part Number: 18151-ZY3-A00ZA

A genuine used Honda Marine left-hand exhaust guide for selected BF175, BF200, BF225 and BF250 V6 four-stroke outboard motors.

The guide fits inside the mount-case assembly and directs exhaust gas and cooling-water discharge from the left side of the powerhead into the lower exhaust system.

⚙️ Key Features

• Genuine used Honda Marine left exhaust guide
• Correct OEM part number 18151-ZY3-A00ZA
• Factory grey finish
• Dedicated left-hand mount-case component
• Matching component for right guide 18141-ZY3-A00ZA

🚤 Compatibility

Commonly used on

• Honda V6 mount-case exhaust systems
• Upper drive-shaft-housing exhaust passages

Typically suits

• Engine models:
• Honda BF175A
• Honda BF175AK2
• Honda BF200A
• Honda BF200A3
• Honda BF200A6
• Honda BF200AK0
• Honda BF200AK2
• Honda BF200AK3
• Honda BF225A
• Honda BF225A3
• Honda BF225AK0
• Honda BF225AK1
• Honda BF225AK3
• Honda BF250A
• Standard and counter-rotation applications specifying 18151-ZY3-A00ZA
• HP Range: 175HP - 250HP
• Engine Type: Honda V6 EFI four-stroke outboard
• Side: Left / port
• Year Range: Model and frame-serial dependent

🔌 Function

The left exhaust guide transfers exhaust gas from the powerhead into the lower exhaust passage while helping control cooling-water flow through the mount case.

⚠️ Common Signs of Failure

• Exhaust escapes into the mount-case cavity
• Guide casting is cracked or corroded
• Sealing surfaces are damaged
• Exhaust-guide seals have failed
• Soot or water staining appears around the mount case
• Cooling water enters the wrong passage
• Exhaust noise increases beneath the engine cowling

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 18151-ZY3-A00ZA current listed left exhaust-guide reference

OEM / Related Numbers

• 18151-ZY3-A00ZA
• 18151ZY3A00ZA
• 18151-ZY3-A00
• 18141-ZY3-A00ZA matching right exhaust guide
• 18148-ZY3-003 exhaust-guide seal
• 18149-ZY3-A01 exhaust-guide seal B
• Related mount-case bolts and sealing components

Aftermarket / Verified Equivalents

• Aftermarket replacement seal under 18148-ZY3-003
• Aftermarket replacement seal under 18149-ZY3-A01
• No aftermarket equivalent for the complete left exhaust guide

📦 Condition

• Genuine used part
• Left-hand exhaust guide
• Removed from running engine where applicable
• In good working condition unless otherwise stated