882548 Mercruiser Water Fitting Adaptor | Genuine Used Part

🔧 Product Description

Genuine MerCruiser 1.7L Diesel Thermostat Housing Water Fitting Adaptor - Part Number: 882548

A genuine used MerCruiser water-fitting adaptor installed on the thermostat and cooling-water housing of the 1.7L DTI / CMD 1.7L-120 Isuzu-based marine diesel engine.

The adaptor provides the machined connection between the thermostat housing and the adjoining cooling-water fitting or hose. It uses a dedicated adaptor gasket to seal the joint.

⚙️ Key Features

• Genuine MerCruiser cooling-water fitting adaptor
• Correct part number 882548
• Used in the thermostat and housing assembly
• Designed for the 1.7L-120 Isuzu-based MerCruiser diesel
• Original obsolete component suitable for engine restoration and repair

🚤 Compatibility

Commonly used on

• Cummins MerCruiser Diesel 1.7L thermostat and housing assemblies
• MerCruiser D1.7L DTI sterndrive cooling systems
• MerCruiser CMD 1.7L inboard and sterndrive engine packages

Typically suits

• Engine models:
• MerCruiser D1.7L DTI 1.7L inline 4-cylinder - serial 0M055000 to 0M999999
• MerCruiser CMD 1.7 MS 120 I/L4 - serial 8810800 and above
• MerCruiser CMD 1.7 MI 120 I/L4 - serial 88109041 and above
• MerCruiser 1998 1.7L DTI sterndrive model families 4V71222ND, 4V71222PD and 4V71222TD
• HP Range: 120HP
• Engine Type: Isuzu-based 1.7L turbocharged and intercooled inline 4-cylinder marine diesel
• Year Range: Approximately 1998 - 2005

🔌 Function

The adaptor connects the thermostat housing to the engine's cooling-water pipework. Its machined bore and gasket face maintain coolant flow and prevent leakage at the housing connection.

⚠️ Common Signs of Failure

• Coolant or water leakage around the adaptor gasket
• Corrosion or pitting inside the water passage
• Cracked adaptor body or damaged hose connection
• Distorted sealing face prevents the gasket from sealing
• Mounting threads or bolt holes become damaged

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 882548 current original MerCruiser adaptor reference

OEM / Related Numbers

• 882548
• 22-882548 formatted Mercury reference
• 27-882463 - Adaptor fitting gasket
• 22-882347 - Related cooling fitting
• 10-882747 - Related flange screw
• 891830 - Related temperature sensor
• 882597 - Related water fitting adaptor in the same housing assembly

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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