VolvoEngine Parts

FPFL2410206 — Idler Pulley 21280913 3848896 For Volvo Penta Engine D4-180I 225A D6-330I 300D

This idler pulley is a critical component in the engine's accessory drive system, maintaining proper tension on the serpentine belt for optimal operation of components like the alternator and water pump. It is constructed from durable materials designed to resist wear and heat, ensuring smooth rotation and preventing premature belt failure. A worn or seized idler pulley can cause a loud squealing noise from the engine, erratic belt movement, or complete belt slippage, leading to a loss of power to essential engine accessories.

Idler Pulley 21280913 3848896 For Volvo Penta Engine D4-180I 225A D6-330I 300D – Part No FPFL2410206 – Volvo Spare Part
Part Specifications
BrandVolvo
CategoryEngine Parts
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Installation & Application Notes

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeIdler Pulley
MaterialSteel and bearing
ApplicationEngine accessory drive belt system
Service LifeReplace every 2-3 years or 100,000 miles
CompatibilityVolvo Penta D4-180I, D4-225A, D6-330I, D6-300D
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing idler pulley often begins with a high-pitched squealing noise that changes with engine RPM. If the pulley bearing seizes, the serpentine belt can be rapidly worn or even break, leading to a sudden loss of power to the alternator, water pump, and power steering. This can result in overheating, battery discharge, and loss of steering assist.

Installation Tip

Before installing, spin the new pulley by hand to ensure it rotates smoothly and quietly without any resistance. Do not reuse the old mounting hardware, as it may be stretched or damaged.

Service Note

Always inspect the serpentine belt for signs of wear, cracking, or glazing and replace it if necessary when servicing the idler pulley.