3887305 Idler Pulley | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta idler pulley of the single type, from the Alternator, Charging, Electric Motor, Electric Drives group, weighing 0.544 kg and listed for 35 applications across D and TAD series engines. It is also included in kit 21676635 and supersedes part number 3809502.

🚤 Compatibility

• Engine Family: D, TAD

Full model list at the end of this description.

⚙️ Key Features

• Single type
• Also included in kit 21676635
• Supersedes 3809502
• 0.544 kg, 35 applications across D and TAD series engines
• Quantity varies by assembly, most commonly one

🔌 Function

Guides and tensions the drive belt, taking up its route without driving anything itself.

⚠️ Common Signs of Failure

• Squealing, chirping or rumbling from the belt drive
• Bearing rough, tight or noisy when spun by hand
• Grease weeping from the bearing seal
• Belt tracking off the pulley, or with polished edges
• Pulley face grooved or the rim chipped

🛠️ Service Notes

• It is also supplied inside kit 21676635, so check whether the kit is the better buy for the job
• Renew the belt and check the tensioner and the other pulleys at the same time

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 3887305 → Supersedes 3809502 → Supersedes 20503093

OEM / Related Numbers

• 3809502 earlier number superseded by this part

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D9A2J, D9A2G, D9A2D, D9A2B, D9A2F, D9A2K, D9A2H, D9A2A, D9A2C, D9A2E
• Volvo Penta D8A2-A MP, D8A5-A MH, D8A6-A MH, D8A5-A MG, D8A6-A MG, D8A4-A MP, D8A1-A MP, D8A3-A MP
• Volvo Penta D11B4-A MP, D11B2-A MP, D11A-C MP, D11A-D MP, D11A-C (IPS)
• Volvo Penta TAD1640-42GE-B, TAD1640GE
• Volvo Penta TAD1641GE, TAD1641VE
• Volvo Penta TAD1642GE, TAD1642VE
• Volvo Penta TAD1643VE
• Volvo Penta TAD1650GE
• Volvo Penta TAD1651GE
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD1670-72VE