How do I confirm pilotpart379840 fits my machine?

Compare the OEM or reference part number, machine model, engine model, and serial number. You can also submit a fitment inquiry before ordering.

In Stock

Idler 6I-6489 for Caterpillar Excavator CAT 307 307B

For Caterpillar Front Idler

Idler 6I-6489 for Caterpillar 3406 Engine

OEM / REF: 6I-6489SKU: pilotpart379840

Idler 6I-6489 for Caterpillar Excavator CAT 307 307B is a Idler replacement part indexed for Caterpillar PM-465 · 3406 and Caterpillar 307 · 3054, with 3 application records on file. Match OEM part number 6I-6489 and confirm fitment for Caterpillar Transmission & Undercarriage Parts before ordering.

Stock: In stock
Condition: New
Fitment: Caterpillar Transmission & Undercarriage Parts
Category: Front Idler

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$1,729.99USD/EA

~~$29,899.00~~Save 94%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 22 – Oct 29
10	Oct 20 – Oct 27
50	Oct 18 – Oct 25

Estimates from today; confirm exact lead time before payment.

Quantity

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

Lead times can vary by freight route and customs. Contact support for expedited shipping.

Front Idler Description

This Front Idler is indexed for Caterpillar PM-465 · 3406; Caterpillar 307 · 3054; Caterpillar 307 · Mitsubishi 4D32; Caterpillar 307B · Mitsubishi 4M40. Compare reference number 6I-6489 against the label on your existing Caterpillar component before ordering.

Before checkout, compare OEM part number 6I-6489, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

6I-6489

Applications

Caterpillar PM-465 · 3406
Caterpillar 307 · 3054
Caterpillar 307 · Mitsubishi 4D32
Caterpillar 307B · Mitsubishi 4M40

Specifications

Part Number	6I-6489, 6I6489

Fitment Notes

Brand or application signal: Caterpillar Transmission & Undercarriage Parts
Product family: Front Idler
System category: Transmission & Undercarriage Parts > Crawler Undercarriage Parts > Front Idler
Recommended verification: OEM number, engine model, serial number, old part photos, and dimensions.

Shipping & Returns

Availability: InStock
Shipping: Shipping quotes can be confirmed before payment for heavy or urgent orders.
Returns: Returns are easier when fitment is confirmed before ordering.
B2B support: Bulk, fleet, and repair-shop requests can be handled through the inquiry form.

Frequently Asked Questions

How do I confirm this part fits my machine?

Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.

Can I order if my part number is not listed?

Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.

Is this an OEM part?

Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.