881527T01 Mercury Cooler | Genuine Used Part

🔧 Product Description

Genuine Mercury 115 EFI Fuel Cooler - Part Number: 881527T01

A genuine used Mercury fuel cooler for Yamaha-manufactured Mercury and Mariner 115 EFI four-stroke outboards.

The cooler forms part of the engine's fuel-delivery assembly and helps reduce fuel temperature before the petrol is supplied through delivery pipe 881518T to the electronic injectors.

⚙️ Key Features

• Genuine Mercury fuel cooler

• Correct Mercury reference 881527T01

• Used in the 115 EFI fuel-delivery system

• Connects with factory hoses, collars and delivery pipe

• Helps limit fuel heating and vapour formation

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 881527T01 Mercury fuel-cooler reference

OEM / Related Numbers:

• 881527T01

• Delivery pipe: 881518T

• Fuel injector: 880887T1

• Fuel-pressure regulator: 880888T02

• Cooler bolt: 881507

• Cooler washer: 881533

• Collar: 888260

• Collar: 881526

• Fuel hoses: 881528, 881529 and 881536

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Mercury and Mariner 115 EFI four-stroke engines

• Yamaha-manufactured Mercury fuel-injection assemblies

• Fuel systems using delivery pipe 881518T

Typically suits:

• Engine models:

• Mercury 115 EFI four-stroke

• Mariner 115 EFI four-stroke

• Serial range 0T178500 through 0T800999

• Serial range 0T801000 through 1B226999

• HP Range: 115HP

• Engine Type: Inline four-cylinder, four-stroke EFI outboard

• Year Range: Approximately 2001 - 2006

🔌 Function

The cooler transfers excess heat away from the fuel circuit, helping maintain stable fuel density and reduce the chance of vapour formation during hot engine operation.

Common signs of failure:

• Petrol or cooling-water leakage around the cooler

• Fuel becomes excessively hot

• Engine is difficult to restart when hot

• Vapour-related hesitation under load

• Corrosion around hose connections

• Restricted internal cooler passages

• Damaged or loose mounting collars

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated