Excavator Engine Parts

344-1722 Belt Tensioner for Cat C7.1 320D 323D 324E Excavators

Q: What numbers are documented for 344-1722?

Primary Part Number: 344-1722. Formatted Alias: 3441722. Published Aftermarket Reference: APV3629. Published Aftermarket Reference: 89944. Relationship labels distinguish formatting aliases, direct interchanges, remanufactured references and related assemblies.

Q: How do I confirm 344-1722 before ordering?

Match the complete part number, compare the connector or mounting arrangement with the product photos, and confirm the machine or engine model and serial range. Send clear photos of the original unit when requesting a quote.

344-1722 Belt Tensioner for Cat C7.1 320D 323D 324E Excavators, OEM/reference 344-1722, Tensioner Belt, product view 1

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OEM / reference344-1722

SpecificationTensioner Belt

Catalog ID53576693

Product Type: Belt Tensioner
Published Pulley Diameter: 74 mm
Condition: New replacement assembly

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Send the machine model, engine model or nameplate photo so our team can confirm compatibility before shipment.

Quotation details: MOQ, availability, lead time, item condition (new or remanufactured) and warranty coverage must be confirmed in your quotation before ordering.

Part-number relationships

Relationship	Reference family	Number
Primary Part Number	Cat belt tensioner reference	344-1722
Formatted Alias	Same primary number without separator	3441722
Published Aftermarket Reference	Published Dayco catalog reference; confirm configuration	APV3629
Published Aftermarket Reference	Published Dayco catalog reference; confirm configuration	89944

Product fitment guide

Part numbers and compatible models

Quickly compare the reference number and recorded machine applications. Use the original photos and the checklist before ordering.

Part identification

Reference numbers

Primary number

344-1722

Formatting alias

3441722

Other documented relationship

APV3629
89944

Formatting aliases are the same number written differently. Cross-references require a specification and fitment check; they do not by themselves confirm direct interchangeability. Related assemblies and remanufactured numbers are separate relationship types.

Product summary

Tensioner Belt

Category: Excavator Engine Parts
Catalog ID: 53576693
Photo views: 8

Before ordering

Confirm these details

Match the complete part number on the original component.
Compare connectors, mounting points and visible dimensions with the product photos.
Confirm the exact machine or engine model and serial range before ordering.

Machine fitment

Compatible model references

2 model references

Engine family: Cat C7.1
Published excavator families: Cat 320D / 320D2 / 320E / 323D / 323D3 / 323E / 324E / 326F / 329D2 / 329E / 330D2 / 330F / 335F

Fitment / evidence notes

Fitment limitation: Confirm machine serial number, pulley diameter and belt layout

Compatibility lists identify searchable model families, not every production serial range. Confirm the original part number and machine serial number before purchase.

Quick fitment answers

Common questions about 344-1722

Which machines use 344-1722?

Recorded compatible model references include Engine family: Cat C7.1, Published excavator families: Cat 320D / 320D2 / 320E / 323D / 323D3 / 323E / 324E / 326F / 329D2 / 329E / 330D2 / 330F / 335F. Recorded fitment/evidence notes: Fitment limitation: Confirm machine serial number, pulley diameter and belt layout. Confirm the complete part number and machine serial range before ordering.

What numbers are documented for 344-1722?

Formatting aliases for the same number: 3441722.

How do I confirm 344-1722 before ordering?

Match the complete part number on the original component. Compare connectors, mounting points and visible dimensions with the product photos. Confirm the exact machine or engine model and serial range before ordering. Send clear photos of the original unit and connector layout when requesting a quote.

Continue comparing verified references from the same system.

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