18340-ZY3-020 Honda Exhaust Pipe (L) | Genuine Used Part

🔧 Product Description

Genuine Honda V6 Left Exhaust Pipe Assembly - Part Number: 18340-ZY3-020

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

The pipe is installed inside the oil-pan and mount-case assembly and routes exhaust from the left cylinder bank into the lower exhaust passage.

⚙️ Key Features

• Genuine used Honda Marine left exhaust pipe
• Correct OEM part number 18340-ZY3-020
• Dedicated left-hand V6 configuration
• Fits selected A-series and D-series V6 outboards
• Matches right exhaust pipe 18330-ZY3-020

🚤 Compatibility

Commonly used on

• Honda V6 oil-pan and mount-case exhaust assemblies
• Left cylinder-bank exhaust passages

Typically suits

• Engine models:
• Honda BF175A
• Honda BF200A
• Honda BF200D
• Honda BF225A
• Honda BF225D
• Honda BF250A
• Honda BF250D
• Standard and counter-rotation model groups specifying 18340-ZY3-020
• HP Range: 175HP - 250HP
• Engine Type: Honda V6 EFI four-stroke outboard
• Side: Left / port
• Year Range: Model and frame-serial dependent

🔌 Function

The pipe routes exhaust gas from the left cylinder bank into the lower drive-shaft-housing exhaust system.

⚠️ Common Signs of Failure

• Pipe is cracked or corroded
• Exhaust leaks beneath the powerhead
• Internal scale restricts exhaust flow
• Mount-case area shows soot staining
• Exhaust becomes unusually loud
• Mounting or sealing surfaces are damaged
• Heat damage affects adjoining oil-pan components

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 18340-ZY3-020 current listed left exhaust-pipe reference

OEM / Related Numbers

• 18340-ZY3-020
• 18340ZY3020
• 18340-ZY3
• 18330-ZY3-020 matching right exhaust pipe
• Related oil-pan gasket and mounting hardware
• 18151-ZY3-A00ZA related left exhaust guide
• 18120-ZVL-series related D-series left exhaust manifold

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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