How do I confirm pilotpart211805 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 Assy 263-0591 317-4133 for Caterpillar Engine CAT C3.3 C4.4

For Caterpillar Radiator

Radiator 263-0591 for Caterpillar

OEM / REF: 263-0591SKU: pilotpart211805

Water Tank Engine Radiator Assy 263-0591 317-4133 for Caterpillar Engine CAT C3.3 C4.4 is a Radiator replacement part indexed for Part Number and Model: Caterpillar Engine CAT C3.3 C4.4C3.3 DE50E0/DE55E0/DE65E0/DE50E2 Generator Set EC500001-UPC3.3 DE50E0/DE55E0/DE65E0/DE50E2 Generator Set GT400001-UPC3.3 Generator S...

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$455.27USD/EA

~~$29,899.00~~Save 98%

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 Part Number; Model: Caterpillar Engine CAT C3.3 C4.4C3.3 DE50E0/DE55E0/DE65E0/DE50E2 Generator Set EC500001-UPC3.3 DE50E0/DE55E0/DE65E0/DE50E2 Generator Set GT400001-UPC3.3 Generator Set N3C00001-UPC4.4 (D40,D50,D60) Generator Set LC400001-UP C4.4 D40 D50 D60 Generator Set CN400001-UPC4.4 D40, D50, D60 Generator Set CN300001-UPC4.4 DE55E2 Generator Set EC700001-UPC4.4 DE55E2 Generator Set GT600001-UPC4.4 DE65E3, DE88E0, DE88E3, DE110E3, DE110E2 Generator Set EC800001-UPC4.4 DE65E3, DE88E0, DE88E3, DE110E3, DE110E2 Generator Set GT800001-UPC4.4 Generator Set GLD00001-UP POWERED BY C4.4 EngineC4.4 Generator Set N4D00001-UPC4.4, D60 Generator Set TX200001-UPXQP30 Rental Generator Set XPM00001-UP POWERED BY C3.3 EngineXQP30 Rental Generator Set XPP00001-UP POWERED BY C3.3 Engine XQP60 Rental Generator Set PNR00001-UP POWERED BY C4.4 EngineXQP60 Rental Generator Set PR600001-UP POWERED BY C3.3 Engine. Compare reference number 263-0591 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 317-4133. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

263-0591 317-4133

Applications

Part Number
Model: Caterpillar Engine CAT C3.3 C4.4C3.3 DE50E0/DE55E0/DE65E0/DE50E2 Generator Set EC500001-UPC3.3 DE50E0/DE55E0/DE65E0/DE50E2 Generator Set GT400001-UPC3.3 Generator Set N3C00001-UPC4.4 (D40,D50,D60) Generator Set LC400001-UP C4.4 D40 D50 D60 Generator Set CN400001-UPC4.4 D40, D50, D60 Generator Set CN300001-UPC4.4 DE55E2 Generator Set EC700001-UPC4.4 DE55E2 Generator Set GT600001-UPC4.4 DE65E3, DE88E0, DE88E3, DE110E3, DE110E2 Generator Set EC800001-UPC4.4 DE65E3, DE88E0, DE88E3, DE110E3, DE110E2 Generator Set GT800001-UPC4.4 Generator Set GLD00001-UP POWERED BY C4.4 EngineC4.4 Generator Set N4D00001-UPC4.4, D60 Generator Set TX200001-UPXQP30 Rental Generator Set XPM00001-UP POWERED BY C3.3 EngineXQP30 Rental Generator Set XPP00001-UP POWERED BY C3.3 Engine XQP60 Rental Generator Set PNR00001-UP POWERED BY C4.4 EngineXQP60 Rental Generator Set PR600001-UP POWERED BY C3.3 Engine

Specifications

Part Number	263-0591, 317-4133, 2630591, 3174133

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.