882437 Mercruiser Fuel Leak Off Pipe | Genuine Used Part

🔧 Product Description

Genuine MerCruiser 1.7L Diesel Injector Leak-Off Pipe - Part Number: 882437

A genuine used fuel-return pipe for MerCruiser and Cummins MerCruiser 1.7L Isuzu-based diesel engines.

The pipe forms part of the injector nozzle leak-off circuit. It collects excess diesel from the mechanical injector assemblies and returns it through the low-pressure side of the fuel system.

⚙️ Key Features

• Genuine MerCruiser diesel leak-off pipe

• Correct Mercury reference 882437

• Connects the injector nozzle return circuit

• Designed for the Isuzu-based 1.7L diesel

• Used with injectors 882555 and companion return pipe 882568

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 882437 original Mercury nozzle leak-off pipe reference

OEM / Related Numbers:

• 882437

• Companion leak-off pipe: 882568

• Injection nozzle: 882555

• Leak-off gasket: 882497

• Injector gasket: 882488

• Injector seal gasket: 882418

• Return hose: 882600

• Pipe clip: 882737

• Pipe clip: 882738

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• MerCruiser D1.7L DTI sterndrive engines

• Cummins MerCruiser CMD 1.7 MI inboard engines

• Isuzu-based mechanical diesel injection systems

Typically suits:

• Engine models:

• MerCruiser D1.7L DTI - serial 0M055000 through 0M999999

• Cummins MerCruiser CMD 1.7 MI 120 - serial 88109041 and up

• MerCruiser 1.7 MS 120 installations using the same injection system

• HP Range: Approximately 120HP

• Engine Type: 1.7L inline four-cylinder turbo-diesel

• Year Range: Approximately late-1990s through mid-2000s

🔌 Function

The pipe carries the small quantity of diesel that bypasses the injector nozzle assemblies back into the fuel-return circuit.

Common signs of failure:

• Diesel leakage around an injector

• Strong diesel smell in the engine compartment

• Air enters the return circuit

• Pipe is cracked or vibration-fatigued

• Banjo or sealing washers leak

• Engine becomes difficult to bleed after service

• Fuel collects around the cylinder head

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated