How do I confirm pilotpart444912 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

Thermostat and Gasket Kit 2477133 247-7133 4N-1156 3S-9643 139-3550 for Caterpillar C-15 C15 3406 Engine

For Caterpillar Thermostat

Engine Thermostat 2477133 for Caterpillar 3406 Engine

Q: What part numbers are associated with this Thermostat?

2477133, 3S9643, 4N1156, 1393550

OEM / REF: 2477133SKU: pilotpart444912

Thermostat and Gasket Kit 2477133 247-7133 4N-1156 3S-9643 139-3550 for Caterpillar C-15 C15 3406 Engine is a Engine Thermostat replacement part indexed for Caterpillar · 3406 and Caterpillar · C15, with 3 application records on file. Match OEM part number 2477133 and confirm fitment for Caterpillar Engine Spare Par...

Stock: In stock
Condition: New
Fitment: Caterpillar Engine Spare Parts
Category: Thermostat

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$141.84USD/EA

~~$29,899.00~~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

Confirm fitment before ordering →

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

Thermostat Description

This Thermostat is indexed for Caterpillar · 3406; Caterpillar · C15; Caterpillar · C-15. Compare reference number 2477133 against the label on your existing Caterpillar component before ordering.

Additional cross references on file: 3S9643, 4N1156, 1393550. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

2477133 3S9643 4N1156 1393550

Applications

Caterpillar · 3406
Caterpillar · C15
Caterpillar · C-15

Specifications

Kit Contains	(2) Temperature Regulators / Thermostats, (2) Lip-Type Seals, (1) Housing Regulator Gasket, (1) Gasket
Part Number (Temperature Regulators / Thermostats)	2477133, 247-7133
Part Number (Lip-Type Seals)	3S9643, 3S-9643
Part Number (Housing Regulator Gasket)	4N1156, 4N-1156
Part Number (Gasket)	1393550, 139-3550
Part Number	Temperature Regulators / Thermostats: 2477133, 247-7133 Lip-Type Seals: 3S9643, 3S-9643 Housing Regulator Gasket: 4N1156, 4N-1156 Gasket: 1393550, 139-3550

Fitment Notes

Brand or application signal: Caterpillar Engine Spare Parts
Product family: Thermostat
System category: Engine Spare Parts > Lubrication & Cooling Systems > Thermostat
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.