VolvoEngine Parts

21407376 — V-Ribbed Belt Deflection Guide Pulley 20795659 21407376 For Volvo Engine B6 B7 Bus 8700 7500

This V-Ribbed Belt Deflection Guide Pulley is a critical component of the engine's accessory drive system, ensuring proper tension and alignment of the serpentine belt. It is manufactured to meet stringent OEM quality standards, providing superior durability and smooth operation compared to worn pulleys that exhibit excessive play or noise. Operators may notice a high-pitched squealing noise from the engine bay, especially during startup or acceleration, which can escalate to belt slippage and loss of accessory function if the pulley fails.

V-Ribbed Belt Deflection Guide Pulley 20795659 21407376 For Volvo Engine B6 B7 Bus 8700 7500 – Part No 21407376 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 TypeV-Ribbed Belt Deflection Guide Pulley
MaterialSteel with sealed bearing
ApplicationEngine accessory drive system
Service LifeReplace every 100,000 miles or as needed
CompatibilityVolvo 20795659
ConditionNew — OEM specification aftermarket

Failure Symptoms

A high-pitched squealing noise emanating from the engine bay, particularly noticeable during cold starts or under load, is the first indication of a failing pulley. If left unaddressed, the noise may worsen, and the pulley bearing can seize, leading to belt slippage or breakage. This can result in the loss of power steering, alternator charging, or cooling fan operation, impacting overall equipment performance and safety.

Installation Tip

Ensure the new pulley spins freely and quietly by hand before installation, as a rough bearing indicates a manufacturing defect. Avoid overtightening the mounting bolt, as this can damage the bearing or the pulley housing.

Service Note

Inspect the serpentine belt for cracks, wear, and proper tension, and check all other accessory drive components for proper function.