How do I confirm pilotpart239763-8589683032312 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

V-Belt 3103706 3978278 for Cummins Engine ISB6.7 QSB6.7 ISL8.9 ISC8.9

For Cummins Belt

Belt 3103706 for Cummins

Q: What part numbers are associated with this Belt?

3103706, 3978278, QSB6.7, ISL8.9, ISC8.9, 8PK2135

OEM / REF: 3103706SKU: pilotpart239763-8589683032312

V-Belt 3103706 3978278 for Cummins Engine ISB6.7 QSB6.7 ISL8.9 ISC8.9 is a Belt replacement part for Cummins Seals, Filters & Maintenance Parts, categorized under Seals, Filters & Maintenance Parts > Belt. Use OEM part number 3103706 and confirm machine model, engine model, and serial details before checkout.

Stock: In stock
Condition: New
Fitment: Cummins Seals, Filters & Maintenance Parts
Category: Belt

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$52.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Oct 21 – Oct 28
10	Oct 19 – Oct 26
50	Oct 17 – Oct 24

Estimates from today; confirm exact lead time before payment.

Quantity

Confirm fitment before ordering →

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

Belt Description

The product belongs to Seals, Filters & Maintenance Parts > Maintenance Components > Belt, making it useful when comparing related seals, filters & maintenance parts Belt options for Cummins Seals, Filters & Maintenance Parts.

Additional cross references on file: 3978278, QSB6.7, ISL8.9. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3103706 3978278 QSB6.7 ISL8.9 ISC8.9 8PK2135

Fitment Notes

Brand or application signal: Cummins Seals, Filters & Maintenance Parts
Product family: Belt
System category: Seals, Filters & Maintenance Parts > Maintenance Components > Belt
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.