24542601 Volvo Penta Alternator Belt Tensioner | Genuine Used Part

🔧 Product Description

Genuine Volvo Penta Alternator Belt Tensioner - Part Number: 24542601

A genuine used Volvo Penta automatic belt tensioner for the alternator and accessory-drive system on D4 and D6 marine diesel engines.

The spring-loaded tensioner maintains the correct load on the serpentine belt as it drives the alternator and associated front-engine accessories. Correct belt tension helps prevent belt slip, charging problems, excessive pulley wear and premature belt failure.

⚙️ Key Features

• Genuine Volvo Penta automatic belt tensioner
• Correct current Volvo Penta part number 24542601
• Used on D4 and D6 marine diesel engines from the applicable serial-number range
• Maintains automatic alternator and accessory-belt tension
• Cross-references with earlier Volvo Penta numbers and aftermarket D4/D6 replacements

🚤 Compatibility

Commonly used on

• Volvo Penta D4 marine diesel alternator and accessory-belt systems
• Volvo Penta D6 marine diesel alternator and accessory-belt systems
• Engines from serial number 2004029745 and above

Typically suits

• Engine models:
• Volvo Penta D4-180
• Volvo Penta D4-210
• Volvo Penta D4-225
• Volvo Penta D4-260
• Volvo Penta D4-300
• Volvo Penta D4-320
• Volvo Penta D6-280
• Volvo Penta D6-300
• Volvo Penta D6-310
• Volvo Penta D6-330
• Volvo Penta D6-350
• Volvo Penta D6-370
• Volvo Penta D6-400
• Volvo Penta D6-435
• Volvo Penta D6-480
• HP Range: 180HP - 480HP
• Engine Type: Volvo Penta D4 and D6 turbocharged marine diesel
• Serial Range: 2004029745 and above
• Year Range: Approximately 2004 onward

🔌 Function

The tensioner applies continuous spring pressure to the alternator and accessory belt, compensating for normal belt stretch and maintaining correct contact with the driven pulleys.

⚠️ Common Signs of Failure

• Belt squeal, chirping or slapping
• Visible belt flutter while the engine is running
• Alternator charging warning or low charging output
• Uneven or accelerated belt wear
• Noisy, seized or loose tensioner pulley

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 24542601 → Supersedes 21344508
• 24077907 earlier Volvo Penta service reference
• 23272815 earlier Volvo Penta service reference
• 22774756 earlier Volvo Penta service reference
• 22667563 earlier Volvo Penta service reference
• 21246430 earlier Volvo Penta service reference
• 3583665 earlier Volvo Penta service reference
• 3582694 earlier Volvo Penta service reference

OEM / Related Numbers

• 24542601
• 24077907
• 23272815
• 22774756
• 22667563
• 21344508
• 21246430
• 3583665
• 3582694

Aftermarket / Verified Equivalents

• Recmar: REC22774756
• Poseidon Marine: D4 / D6 Replacement Belt Tensioner for 24542601 / 22774756

📦 Condition

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