862055 Mercruiser Alternator Bracket Assy | Genuine Used Part

🔧 Product Description

Genuine MerCruiser Alternator Mounting Bracket Assembly - Part Number: 862055

A genuine used MerCruiser alternator mounting bracket assembly for selected GM-based V6 and small-block V8 petrol marine engines.

The cast bracket supports the alternator against the engine while maintaining the required pulley and serpentine-belt alignment.

⚙️ Key Features

• Genuine used MerCruiser OEM alternator bracket
• Original part number 862055
• Later service references 862055T and 863211T01
• Used on selected 4.3L, 5.0L, 5.7L and 6.2L engines
• Cast marine-engine bracket for correct accessory alignment

🚤 Compatibility

Commonly used on

• GM-based MerCruiser V6 and small-block V8 accessory-drive systems
• Serpentine-belt alternator installations

Typically suits

• Engine models:
• MerCruiser 4.3L V6
• MerCruiser 4.3L EFI
• MerCruiser 4.3L MPI
• MerCruiser 5.0L carburetted V8
• MerCruiser 5.0L EFI V8
• MerCruiser 5.0L MPI V8
• MerCruiser 5.7L carburetted V8
• MerCruiser 5.7L EFI V8
• MerCruiser 350 MAG
• MerCruiser 350 MAG MPI
• MerCruiser 350 MAG Horizon
• MerCruiser 6.2L MPI
• MerCruiser 377 MAG MPI
• Sterndrive and inboard engines using the 862055 alternator-mount family
• Engine Type: MerCruiser GM V6 and small-block V8 petrol sterndrive / inboard
• Year Range: Approximately mid-1990s through the 2000s
• System Type: Alternator and serpentine accessory-drive mounting

🔌 Function

The bracket carries the alternator and maintains its alignment with the crankshaft and water-pump pulleys so the serpentine belt runs correctly.

⚠️ Common Signs of Failure

• Alternator sits out of pulley alignment
• Serpentine belt repeatedly comes off
• Bracket is cracked around a mounting boss
• Mounting holes are elongated or stripped
• Belt squeals despite correct tension
• Alternator vibrates excessively

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 863211T01 → Supersedes 862055T
• 862055T → Supersedes 862055
• 862055 earlier OEM alternator-bracket reference

OEM / Related Numbers

• 863211T01
• 862055T
• 862055
• 862055-1
• 862778 related alternator brace
• 862056 related accessory bracket

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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