881518T Mercury Delivery Hose | Genuine Used Part

🔧 Product Description

Genuine Mercury 115 EFI Fuel Delivery Pipe - Part Number: 881518T

A genuine used fuel delivery pipe or injector rail for Yamaha-manufactured Mercury and Mariner 115 EFI four-stroke outboards.

Although sometimes described as a delivery hose, Mercury identifies 881518T as the fuel delivery pipe. It supports the four injectors, receives regulated fuel and distributes it evenly across the engine's inline four-cylinder intake system.

⚙️ Key Features

• Genuine Mercury fuel delivery pipe
• Correct Mercury reference 881518T
• Supports four electronic fuel injectors
• Used with injector 880887T1
• Fits Yamaha-based Mercury 115 EFI engines

🚤 Compatibility

Commonly used on

• Mercury 115 EFI four-stroke fuel systems
• Mariner 115 EFI four-stroke fuel systems
• Yamaha-based Mercury inline four-cylinder outboards

Typically suits

• Engine models:
• Mercury 115 EFI four-stroke - serial 0T178500 through 0T800999
• Mercury 115 EFI four-stroke - serial 0T801000 through 1B226999
• Mariner 115 EFI four-stroke using the same Yamaha-manufactured fuel system
• HP Range: 115HP
• Engine Type: Inline four-cylinder, four-stroke multipoint EFI outboard
• Year Range: Approximately 2001 - 2006

🔌 Function

The pipe stores a small volume of regulated fuel and supplies equal pressure to all four injectors while retaining the injectors and associated sealing components in position.

⚠️ Common Signs of Failure

• Petrol leaking around an injector seat
• Corrosion or contamination inside the pipe
• Fuel pressure falls during acceleration
• Engine runs lean on one or more cylinders
• Strong petrol smell beneath the cowling
• Injector seals no longer seat correctly
• Cracked or damaged mounting points

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 881518T Mercury fuel-delivery-pipe reference

OEM / Related Numbers

• 881518T
• Fuel injector: 880887T1
• Fuel-pressure regulator: 880888T02
• Fuel cooler: 881527T01
• Rail cap: 881520
• Nipple: 881521T
• Nipple O-ring: 881522
• Injector O-ring kit: 885183A1
• Intake assembly: 881440T04

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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