882568 Mercruiser Injector Pipe | Genuine Used Part

🔧 Product Description

Genuine MerCruiser 1.7L Diesel Nozzle Leak-Off Pipe - Part Number: 882568

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

Mercury describes 882568 as a nozzle leak-off fuel pipe rather than a high-pressure injector line. It works with pipe 882437 to collect excess diesel from the injectors and return it to the low-pressure fuel circuit.

⚙️ Key Features

• Genuine MerCruiser nozzle leak-off pipe
• Correct Mercury reference 882568
• Companion to return pipe 882437
• Connects the mechanical injector return circuit
• Factory-formed for the 1.7L diesel cylinder head

🚤 Compatibility

Commonly used on

• MerCruiser D1.7L DTI sterndrive engines
• Cummins MerCruiser CMD 1.7 MI inboard engines
• Mechanical four-injector diesel fuel 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 MI 120
• MerCruiser 1.7 MS 120
• 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 injector leakage and cooling fuel away from the nozzle assemblies and into the return circuit.

⚠️ Common Signs of Failure

• Diesel leaking around the injector return fittings
• Air enters the fuel-return circuit
• Strong diesel smell
• Pipe is cracked or bent
• Sealing washers no longer seal
• Fuel collects around the injectors
• Vibration causes the pipe to fracture

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 882568 Mercury nozzle leak-off pipe reference

OEM / Related Numbers

• 882568
• Companion pipe: 882437
• Injector nozzle: 882555
• Injector leak-off gasket: 882497
• Return hose: 882600
• Pipe clips: 882737 and 882738
• Injection pipes: 882733 through 882736

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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