321745 BRP Cover Air Silencer | Genuine Used Part

🔧 Product Description

Genuine Johnson / Evinrude Air Silencer Cover - Part Number: 0321745

A genuine used air-silencer or sound-attenuator cover for selected Johnson and Evinrude three-cylinder two-stroke outboards.

The number 321745 is commonly moulded or stamped into the cover. The corresponding serviced air-silencer cover assembly is also referenced as 0388264 or 388264. It attaches to the air-silencer base ahead of the carburettors and helps reduce induction noise while protecting the carburettor inlets.

⚙️ Key Features

• Genuine Johnson / Evinrude air-silencer cover
• Moulded number 321745 / service number 0321745
• Cross-references with cover assembly 0388264
• Used on three-cylinder carburetted two-stroke engines
• Reduces induction noise and protects carburettor openings

🚤 Compatibility

Commonly used on

• Johnson three-cylinder carburetted air-silencer systems
• Evinrude three-cylinder carburetted air-silencer systems
• 60HP and 70HP induction assemblies using cover 0388264

Typically suits

• Engine models:
• Johnson 60HP three-cylinder two-stroke
• Johnson 65HP commercial three-cylinder two-stroke
• Johnson 70HP three-cylinder two-stroke
• Evinrude 60HP three-cylinder two-stroke
• Evinrude 65HP commercial three-cylinder two-stroke
• Evinrude 70HP three-cylinder two-stroke
• 1989 Johnson 60HP applications
• 1991 Johnson / Evinrude 60HP and 70HP applications
• 1992 Johnson / Evinrude 60HP and 70HP applications
• Later engines using air-silencer assembly 333009 / 388264
• HP Range: 60HP - 70HP
• Engine Type: Johnson / Evinrude three-cylinder carburetted two-stroke outboard
• Year Range: Approximately late 1980s - early 2000s, dependent on model

🔌 Function

The cover encloses the front of the carburettor air-silencer assembly, reducing induction noise and helping prevent loose objects and contamination entering the carburettor throats.

⚠️ Common Signs of Failure

• Cover cracked or broken
• Air-silencer cover no longer attaches securely
• Increased induction noise
• Carburettor throats left exposed
• Mounting screws or clips no longer retained

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 0388264 complete air-silencer cover assembly reference
• 0321745 / 321745 moulded cover reference

OEM / Related Numbers

• 0321745
• 321745
• 0388264
• 388264
• 0333009 related air-silencer assembly
• 0329243 related air-silencer base
• 0321744 related base or moulded reference
• 0439742 related complete silencer assembly on selected engines
• 05007356 related later assembly reference

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

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