856304 Pulley | Genuine Volvo Penta Part

🔧 Product Description

Genuine Volvo Penta pulley from the Engine group, weighing 0.909 kg and listed for 25 applications across the BB, DP, SP and MS ranges. Pulley 856220 in this run belongs to the Alternator and charging group instead, at 0.769 kg for four applications - a different part in a different place on the belt run.

🚤 Compatibility

• Engine Family: BB, DP, SP, MS

Full model list at the end of this description.

⚙️ Key Features

• Engine group pulley
• 0.909 kg
• 25 applications across BB, DP, SP and MS
• Distinct from charging-group pulley 856220

🔌 Function

Transfers drive between the belt and the shaft it is mounted on, at the ratio its diameter sets.

⚠️ Common Signs of Failure

• Belt squeal that returns shortly after retensioning
• Belt dust building up around the pulley
• Groove walls polished, stepped or worn through
• Wobble or run-out visible with the engine turning
• Cracks around the hub or the fixing holes

🛠️ Service Notes

• Renew the belt with the pulley - a stepped groove will destroy a new belt
• Check the shaft, key and fixing for wear while the pulley is off

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta 740B, 501B, 570A, 572A, 740A, 430A, 430B, 431A, 431B, 432A, 434A, 570, 500B, 430
• Volvo Penta DP-C, DP-C1, DP-D, DP-D1, DP-A, DP-A2
• Volvo Penta SP-C, SP-A2, SP-C1
• Volvo Penta BB740A
• Volvo Penta MS4B