How do I confirm pilotpart205890 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 Tank Engine Radiator Core 326-3870 312-8340 for Caterpillar Excavator CAT 320D 323D

For Caterpillar Radiator

Radiator 326-3870 for Caterpillar 320D

Q: What part numbers are associated with this Radiator?

326-3870, 312-8340, E320D, B07Y451ZR4

OEM / REF: 326-3870SKU: pilotpart205890

Water Tank Engine Radiator Core 326-3870 312-8340 for Caterpillar Excavator CAT 320D 323D is a Radiator replacement part indexed for Caterpillar 320D and Caterpillar E320D, with 3 application records on file. Match OEM part number 326-3870 and confirm fitment for Caterpillar HVAC Parts before ordering.

Stock: In stock
Condition: New
Fitment: Caterpillar HVAC Parts
Category: Radiator

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$816.99USD/EA

~~$116,099.00~~Save 99%

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

Buy online now or add to your quote list for bulk pricing and fitment confirmation.

Confirm fitment before ordering →

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

Radiator Description

This Radiator is indexed for Caterpillar 320D; Caterpillar E320D; Caterpillar 323D; Caterpillar E323D. Compare reference number 326-3870 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 312-8340, E320D, B07Y451ZR4. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

326-3870 312-8340 E320D B07Y451ZR4

Applications

Caterpillar 320D
Caterpillar E320D
Caterpillar 323D
Caterpillar E323D
Caterpillar Caterpillar Excavator CAT 320D 325D 329D M325D MH
Caterpillar Caterpillar CAT E320D Excavator

Specifications

Core Dimensions	92042092mm
Part Number	326-3870, 312-8340, 3263870, 3128340

Fitment Notes

Brand or application signal: Caterpillar HVAC Parts
Product family: Radiator
System category: HVAC Parts > Cooling System Components > Radiator
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.