How do I confirm pilotpart440642 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 544-4058 for Caterpillar CAT Excavator 301.8 301.7CR 302CR 304SR 302.7CR 303CR 303 SR 301.6 301.5

For Caterpillar Thermostat

Engine Thermostat 544-4058 for Caterpillar 301.8

OEM / REF: 544-4058SKU: pilotpart440642

Thermostat 544-4058 for Caterpillar CAT Excavator 301.8 301.7CR 302CR 304SR 302.7CR 303CR 303 SR 301.6 301.5 is a Engine Thermostat replacement part indexed for Caterpillar 301.8 and Caterpillar 301.5, with 3 application records on file. Match OEM part number 544-4058 and confirm fitment for Caterpillar Engine Spare...

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

$91.99USD/EA

~~$13,099.00~~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.

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

Thermostat Description

This Thermostat is indexed for Caterpillar 301.8; Caterpillar 301.5; Caterpillar 301.6; Caterpillar 301.7CR. Compare reference number 544-4058 against the label on your existing Caterpillar component before ordering.

Before checkout, compare OEM part number 544-4058, connector layout, mounting position, and machine serial number. For high-value or fitment-sensitive parts, submit the fitment form below so support can verify the match.

Part Numbers and Cross References

544-4058

Applications

Caterpillar 301.8
Caterpillar 301.5
Caterpillar 301.6
Caterpillar 301.7CR
Caterpillar 302.7CR
Caterpillar 302CR
Caterpillar 303 SR
Caterpillar 303CR
Caterpillar 304SR

Specifications

Part Number	544-4058

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.