How do I confirm pilotpart519507-9447786643704 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

Fuel Pump Gear 3931380 for Cummins Engine 4B 8.9L 6C8.3 6B5.9 4B3.9 QSC8.3 QSB6.7

For Cummins Bearing, Gear & Shaft

Bearing, Gear & Shaft 3918778 for Cummins

Q: What part numbers are associated with this Bearing, Gear & Shaft?

3918778, 3923578, 4B3.9, 6B5.9, G8.3, 8.9L, L8.9, V903

OEM / REF: 3918778SKU: pilotpart519507-9447786643704

Fuel Pump Gear 3931380 for Cummins Engine 4B 8.9L 6C8.3 6B5.9 4B3.9 QSC8.3 QSB6.7 is a Bearing, Gear & Shaft replacement part for Cummins Transmission & Undercarriage Parts, categorized under Transmission & Undercarriage Parts > Bearing, Gear & Shaft. Use OEM part number 3918778 and confirm machine model, engine mod...

Stock: In stock
Condition: New
Fitment: Cummins Transmission & Undercarriage Parts
Category: Bearing, Gear & Shaft

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$143.00USD/EA

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 19 – Aug 26
10	Aug 17 – Aug 24
50	Aug 15 – Aug 22

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.

Bearing, Gear & Shaft Description

This Bearing, Gear & Shaft is indexed for Cummins s: Fit For Cummins Engine: 6C8.3, 4B3.9, 6B5.9, G8.3, ISBE4 CM850, ISC8.3 CM2250, ISL9 CM2250, ISL9 CM2350 L101, 8.9L, L8.9, L9.3 L105, L9.5 L117, QSB6.7 CM850(CM2850), QSC8.3 CM554, QSC8.3 CM850(CM2850), V903. Compare reference number 3918778 against the label on your existing Cummins component before ordering.

Additional cross references on file: 3923578, 4B3.9, 6B5.9. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3918778 39235784B3.96B5.9G8.38.9LL8.9V903

Applications

Cummins s: Fit For Cummins Engine: 6C8.3, 4B3.9, 6B5.9, G8.3, ISBE4 CM850, ISC8.3 CM2250, ISL9 CM2250, ISL9 CM2350 L101, 8.9L, L8.9, L9.3 L105, L9.5 L117, QSB6.7 CM850(CM2850), QSC8.3 CM554, QSC8.3 CM850(CM2850), V903

Fitment Notes

Brand or application signal: Cummins Transmission & Undercarriage Parts
Product family: Bearing, Gear & Shaft
System category: Transmission & Undercarriage Parts > Transmission Parts > Bearing, Gear & Shaft
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.