882520 Mercruiser Alternator Bracket with Tensioner | Genuine Used Part

🔧 Product Description

Genuine MerCruiser Diesel Alternator Bracket with Tensioner - Part Number: 882520

A genuine MerCruiser alternator mounting bracket and belt-tensioner assembly for the Cummins MerCruiser Diesel 1.7L DTI and 1.7L MI 120HP engine family.

The bracket mounts the alternator to the engine and maintains its alignment with the crankshaft and accessory drive pulleys. The incorporated tensioner applies the correct load to the alternator belt during engine operation.

⚙️ Key Features

• Genuine MerCruiser diesel-engine component
• Correct Mercury part number 882520
• Combined alternator mounting bracket and tensioner
• Maintains alternator belt tension and pulley alignment
• Designed for the Isuzu-based 1.7L inline-four diesel engine

🚤 Compatibility

Commonly used on

• Cummins MerCruiser Diesel 1.7L DTI sterndrive engines
• Cummins MerCruiser Diesel 1.7L MI inboard engines

Typically suits

• Engine models:
• MerCruiser / CMD 1.7L DTI 120HP - serial 0M055000 to 0M999999
• MerCruiser 1.7L DTI inline-four diesel sterndrive
• CMD 1.7L MI 120 inboard - serial 88109041 and above
• Isuzu-based 1.7L four-cylinder marine diesel accessory-drive assemblies
• HP Range: 120HP
• Engine Type: 1.7L turbocharged and intercooled inline-four marine diesel
• Year Range: Approximately 2001-2004, dependent on engine serial number

🔌 Function

The bracket supports the alternator and keeps its pulley correctly aligned with the accessory belt. The tensioner maintains the belt load required for dependable alternator operation without excessive belt slip or bearing stress.

⚠️ Common Signs of Failure

• Alternator belt repeatedly becomes loose
• Belt runs out of alignment or wears along one edge
• Tensioner binds or no longer holds adjustment
• Bracket is cracked, bent or heavily corroded
• Excessive vibration or noise from the alternator drive

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 882520 current OEM catalogue reference

OEM / Related Numbers

• 882520
• 882520 alternator bracket with tensioner
• Related 1.7L DTI alternator and starter mounting assembly

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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