How do I confirm pilotpart290415 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

Water Separator 3355903 For Cummins Engine Fuel

For Freightliner Fuel Water Separator

Fuel Water Separator 7381816 for Freightliner Cummins 8.9L L6 Engine

Q: What part numbers are associated with this Fuel Water Separator?

7381816, 3355903, P505961, Fs1242, 1236385, Wk940, Wk940/36x

OEM / REF: 7381816SKU: pilotpart290415

Water Separator 3355903 For Cummins Engine Fuel is a Fuel Water Separator replacement part indexed for Freightliner Condor Base · Cummins 8.9L L6 and Freightliner XB Line Base · Cummins 5.9L L6, with 3 application records on file. Match OEM part number 7381816 and confirm fitment for Freightliner Seals, Filters & Ma...

Stock: In stock
Condition: New
Fitment: Freightliner Seals, Filters & Maintenance Parts
Category: Fuel Water Separator

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$76.99USD/EA

~~$10,999.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Sep 23 – Sep 30
10	Sep 21 – Sep 28
50	Sep 19 – Sep 26

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.

Fuel Water Separator Description

This Fuel Water Separator is indexed for Freightliner Condor Base · Cummins 8.9L L6; Freightliner XB Line Base · Cummins 5.9L L6; Freightliner XB Raised/Straight Rail Base · Cummins 5.9L L6; Freightliner XC Base · Cummins 8.3L L6. Compare reference number 7381816 against the label on your existing Freightliner component before ordering.

Additional cross references on file: 3355903, P505961, Fs1242. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

7381816 3355903 P505961 Fs1242 1236385 Wk940 Wk940/36x

Applications

Freightliner Condor Base · Cummins 8.9L L6
Freightliner XB Line Base · Cummins 5.9L L6
Freightliner XB Raised/Straight Rail Base · Cummins 5.9L L6
Freightliner XC Base · Cummins 8.3L L6
Freightliner XC Lowered/Modular Rail Base · Cummins 8.3L L6
Freightliner XC Raised Base · Cummins 8.3L L6
Freightliner XC Rail Base · Cummins 5.9L L6
Cummins s: For Cummins Engine

Specifications

Part Number (Mercedes-Benz)	7381816
Part Number (Cummins)	3355903
Part Number (Donaldson)	P505961
Part Number (Fleetguard)	Fs1242
Part Number (Hamm)	1236385
Part Number (Mann)	Wk940/36x
Part Number	Mercedes-Benz: 7381816 Cummins: 3355903 Donaldson: P505961 Fleetguard: Fs1242 Hamm: 1236385 Mann: Wk940/36x

Fitment Notes

Brand or application signal: Freightliner Seals, Filters & Maintenance Parts
Product family: Fuel Water Separator
System category: Seals, Filters & Maintenance Parts > Filters > Fuel Water Separator
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.