21405494 Belt | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta D4/D6 Standard-Alternator V-Ribbed Belt - Part Number: 21405494

Genuine multi-rib drive belt for selected Volvo Penta D4 and D6 marine diesel engines fitted with the standard alternator and without hydraulic power steering. It replaces belt 3583729 and has a verified RECMAR replacement.

⚙️ Key Features

• Current replacement for belt 3583729

• Standard-alternator accessory drive

• Without hydraulic power steering

• D4-300, D6-400 and D6-435 application

• Factory rib count and effective length

• RECMAR equivalent available

• Power-steering belt configuration uses a different part number

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 21405494 → Supersedes 3583729

OEM / Related Numbers:

• 21405494

• 3583729

• 21405444 - Related earlier belt reference requiring application confirmation

• 21407028 - Power-steering configuration; not interchangeable

Aftermarket / Verified Equivalents:

• RECMAR: REC3583729

🚤 Compatibility

Confirmed applications:

D4-300:

• D4-300A-A

• D4-300A-C

• D4-300A-D

• D4-300A-E

• D4-300A-F

• D4-300D-A

• D4-300D-C

• D4-300D-D

• D4-300D-E

• D4-300D-F

• D4-300I-A

• D4-300I-C

• D4-300I-D

• D4-300I-E

• D4-300I-F

D6-400:

• D6-400A-E

• D6-400A-F

D6-435:

• D6-435D-A

• D6-435D-C

• D6-435D-D

• D6-435D-E

• D6-435D-F

• D6-435I-A

• D6-435I-C

• D6-435I-D

• D6-435I-E

• D6-435I-F

Configuration:

• Standard alternator

• Without hydraulic power steering

• Confirm pulley layout, rib count and engine serial number

🔌 Function

The belt transfers crankshaft rotation to the alternator and other accessories in the standard non-power-steering drive arrangement.

Common signs of failure:

• Cracking or missing ribs

• Glazing and belt squeal

• Frayed edges

• Low alternator output

• Belt dust around the pulleys

• Repeated belt movement caused by pulley or tensioner misalignment

📦 Condition

• Genuine Volvo Penta part

• Brand new

• Supplied in original or equivalent packaging