How do I confirm pilotpart415059-9321811771640 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

Oil Filler Cap 3973511 3968202 for Cummins Engine QSB5.9 QSZ13 QSL9.3 QSL8.9 QSB6.7 4B3.9 ISB ISBE4 ISL9 QSB6.7 QSC9

For Cummins Radiator, Oil & Fuel Caps

Radiator, Oil & Fuel Caps 3973511 for Cummins Fit for Cummins

Q: What part numbers are associated with this Radiator, Oil & Fuel Caps?

3973511, 3968202, 3942135, 3944736, 3945254, 3937759

OEM / REF: 3973511SKU: pilotpart415059-9321811771640

Oil Filler Cap 3973511 3968202 for Cummins Engine QSB5.9 QSZ13 QSL9.3 QSL8.9 QSB6.7 4B3.9 ISB ISBE4 ISL9 QSB6.7 QSC9 is a Radiator, Oil & Fuel Caps replacement part for Cummins Seals, Filters & Maintenance Parts, categorized under Seals, Filters & Maintenance Parts > Radiator, Oil & Fuel Caps. Use OEM part number 39...

Stock: In stock
Condition: New
Fitment: Cummins Seals, Filters & Maintenance Parts
Category: Radiator, Oil & Fuel Caps

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$18.00USD/EA

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

Confirm fitment before ordering →

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

Radiator, Oil & Fuel Caps Description

This Radiator, Oil & Fuel Caps is indexed for Cummins Fit for Cummins. Compare reference number 3973511 against the label on your existing Cummins component before ordering.

Additional cross references on file: 3968202, 3942135, 3944736. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3973511 3968202 3942135 3944736 3945254 3937759

Applications

Cummins Fit for Cummins

Fitment Notes

Brand or application signal: Cummins Seals, Filters & Maintenance Parts
Product family: Radiator, Oil & Fuel Caps
System category: Seals, Filters & Maintenance Parts > Maintenance Components > Radiator, Oil & Fuel Caps
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.