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21766717 Belt Guide Pulley for Volvo Excavators

21766717 Belt Guide Pulley for Volvo Excavators

Part number:	21766717
Applicable models/engines:	EC380, EC480
This belt guide pulley is supplied for buyers who need a correctly identified part for Volvo excavators. Voight Song Machinery Parts checks the visible part number, model and serial information, old-part evidence and product-specific interfaces before quotation confirmation to reduce mismatch risk.

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Product Features

Part-number-led identification using 21766717.

Application checking for EC380, EC480 using the complete serial number, nameplate and old-part photographs.

Original-part supply with product-specific checking of part number, pulley diameter and groove/profile, pulley width.

Buyer Pain Points Solved

A visually similar belt guide pulley can have different pulley diameter and groove/profile or application details, resulting in an unusable replacement.

Incorrect sourcing can extend downtime when the machine shows belt wandering, squeal, abnormal vibration, uneven belt wear, pulley play or bearing noise.

Overseas buyers need part-number and application confirmation before payment, not only a product photograph or price quote.

International handling requires careful protection: protect the pulley running surface, bearing, center bore and mounting faces from impact, corrosion and contamination.

Product Advantages

Part-number confirmation support for 21766717.

Application reference for EC380, EC480.

Comparison of part number, pulley diameter and groove/profile, pulley width, bearing and center-bore arrangement before order confirmation.

Pre-shipment product photographs and protective export packing focused on the vulnerable features of the actual part.

Multi-part consolidation and international shipment coordination for B2B buyers.

Product Details and Identification

Product type	Belt Guide Pulley
System	Belt Drive System
Part numbers	21766717
Application reference	Volvo excavators; EC380, EC480
Supply identity	Original part; actual product and visible identification are checked before shipment

Function and Applications

This component guides the engine accessory belt and helps maintain the intended belt path and alignment. For the buyer, a correctly identified unit can help restore stable belt guidance with the correct pulley diameter, width, bearing and mounting arrangement.

Compatibility Verification

Before ordering, provide the complete machine or engine serial number, nameplate, old-part label and clear photographs of part number, pulley diameter and groove/profile, pulley width. Model name alone is not sufficient for final compatibility confirmation.

Common Failure Symptoms

Belt wandering, squeal, abnormal vibration, uneven belt wear, pulley play or bearing noise may lead to inspection of this part. These symptoms do not by themselves prove that the part has failed.

Other Possible Causes

Belt tension, belt condition, tensioner alignment, adjacent pulleys, mounting hardware and accessory-drive alignment should also be diagnosed before replacement.

Pre-Shipment Checks

The supplied unit is checked against the quotation for visible part number, quantity, external condition and part number, pulley diameter and groove/profile, pulley width, bearing and center-bore arrangement. Actual product photographs are retained for shipment confirmation.

Packing and International Shipping

Protect the pulley running surface, bearing, center bore and mounting faces from impact, corrosion and contamination. Packing and freight arrangements are confirmed for the order quantity and destination.

Information Required for a Quote

● Required quantity and destination country/postcode.

● Complete machine or engine model with full serial number.

● Machine or engine nameplate photograph.

● Old-part label and clear multi-angle photographs.

● Close-ups of part number, pulley diameter and groove/profile, pulley width.

Frequently Asked Questions

How do I confirm that 21766717 is correct?

Provide the complete serial number, nameplate, old-part label and product-interface photographs for identification checking.

Can I order using only the model name?

No. Serial-number range and configuration must also be checked.

Is this supplied as an original part?

Yes. The actual product and visible identification are checked before shipment.

Can appearance alone confirm compatibility?

No. Appearance supports comparison but cannot replace part-number and serial-number verification.

What symptoms may require inspection of this belt guide pulley?

Belt wandering, squeal, abnormal vibration, uneven belt wear, pulley play or bearing noise may require inspection, but diagnosis is still necessary.

What else can cause similar symptoms?

Belt tension, belt condition, tensioner alignment, adjacent pulleys, mounting hardware and accessory-drive alignment can cause similar symptoms.

What is checked before shipment?

Visible number, quantity, condition and part number, pulley diameter and groove/profile, pulley width are checked against the quotation.

Can this ship with other parts?

Yes. Multiple verified parts can be consolidated after numbers, quantities and destination are confirmed.

Get a Verified Quote

Send the complete serial number, nameplate and old-part photographs to request a checked quotation for 21766717 Belt Guide Pulley.

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Voight Song Machinery Parts provides Volvo accessories, multi-brand construction machinery spare parts, electronic components, hydraulic components, engine components, wear parts and customized alternative parts solutions to overseas contractors, maintenance workshops, distributors and project maintenance teams.

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