How do I confirm pilotpart274952 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

For Hitachi Thermostat

Engine Thermostat 121850-49810 for Hitachi ZX60USB-3F

Q: What part numbers are associated with this Thermostat?

121850-49810, YM121850-49810, 4D92E-1ABW-F, 4D92E-1B45-BM, 4D92E-1B46-BM, 4D92E-1BD-F, 4D92E-1BW-F, 4D94E-1ABD-F, 4D94E-1ABW-F, 4D94E-1BD-F, 4D94E-1BW-F, 4D94LE-1B38-BM

OEM / REF: 121850-49810SKU: pilotpart274952

Engine Thermostat 121850-49810 for Hitachi ZX60USB-3F ZX65USB-3F Excavator is a Engine Thermostat replacement part indexed for Hitachi ZX60USB-3F and Hitachi ZX65USB-3F. Match OEM part number 121850-49810 and confirm fitment for Hitachi Engine Spare Parts before ordering.

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

Fitment support before you order
Worldwide delivery options

In stock — ready to order

$96.99USD/EA

~~$11,399.00~~Save 99%

Estimated delivery by quantity

Estimated delivery windows
Qty	Estimated delivery
1	Aug 12 – Aug 19
10	Aug 10 – Aug 17
50	Aug 8 – Aug 15

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.

Thermostat Description

This Thermostat is indexed for Hitachi ZX60USB-3F; Hitachi ZX65USB-3F. Compare reference number 121850-49810 against the label on your existing Hitachi component before ordering.

Additional cross references on file: YM121850-49810, 4D92E-1ABW-F, 4D92E-1B45-BM. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.

Part Numbers and Cross References

121850-49810 YM121850-49810 4D92E-1ABW-F 4D92E-1B45-BM 4D92E-1B46-BM 4D92E-1BD-F 4D92E-1BW-F 4D94E-1ABD-F 4D94E-1ABW-F 4D94E-1BD-F 4D94E-1BW-F 4D94LE-1B38-BM

Applications

Hitachi ZX60USB-3F
Hitachi ZX65USB-3F

Specifications

Part Number	121850-49810, 12185049810

Fitment Notes

Brand or application signal: Hitachi 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.