How do I confirm pilotpart109990 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 Cooler Core 3921558 3957544 fit for Cummins Engine B5.9L 6B 6BT 6BTA 12V in USA

For Cummins Hydraulic Oil Cooler

Hydraulic Oil Cooler 3921558 for Cummins

Q: What part numbers are associated with this Hydraulic Oil Cooler?

3921558, 3957544Replaces, J911940, J918293, J921558, 2853604, 303455629, 303498522, 4896407, 87416028, B5.9L, 6BTA

OEM / REF: 3921558SKU: pilotpart109990

Oil Cooler Core 3921558 3957544 fit for Cummins Engine B5.9L 6B 6BT 6BTA 12V in USA is a Hydraulic Oil Cooler replacement part indexed for Part Number and Cummins Engine B5.9L 6B 6BT 6BTA 12V1993-1998 Dodge/Cummins 5.9L B-Series, 12-Valve1998-2003 Dodge/Cummins 5.9L ISB with VP44Replacement Oil Cooler that fits Case...

Stock: In stock
Condition: New
Fitment: Cummins HVAC Parts
Category: Hydraulic Oil Cooler

Fitment support before you order
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In stock — ready to order

$158.92USD/EA

~~$38,199.00~~Save 100%

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

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

Hydraulic Oil Cooler Description

This Hydraulic Oil Cooler is indexed for Part Number; Cummins Engine B5.9L 6B 6BT 6BTA 12V1993-1998 Dodge/Cummins 5.9L B-Series, 12-Valve1998-2003 Dodge/Cummins 5.9L ISB with VP44Replacement Oil Cooler that fits Case-IH Industrial Construction. Compare reference number 3921558 against the label on your existing Cummins component before ordering.

Additional cross references on file: 3957544Replaces, J911940, J918293. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

3921558 3957544Replaces J911940 J918293 J921558 2853604 303455629 303498522 4896407 87416028B5.9L6BTA

Applications

Part Number
Cummins Engine B5.9L 6B 6BT 6BTA 12V1993-1998 Dodge/Cummins 5.9L B-Series, 12-Valve1998-2003 Dodge/Cummins 5.9L ISB with VP44Replacement Oil Cooler that fits Case-IH Industrial Construction

Specifications

Part Number	3921558, 3957544
Part Number (Replaces Part Numbers)	JR903375, J911940, J918293, J921558, 2853604, 303455629, 303498522, 4896407, 87416028

Fitment Notes

Brand or application signal: Cummins HVAC Parts
Product family: Hydraulic Oil Cooler
System category: HVAC Parts > Cooling System Components > Hydraulic Oil Cooler
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.