OEM / REF: 4201395SKU: pilotpart438045
Engine Regulator Thermostat Assembly 497-3990 For Caterpillar CAT Excavator 323 326 330 330GC 333 335 336 Engine C7.1 is a Engine Thermostat replacement part indexed for CAT AP1000 and CAT AP-1000E, with 3 application records on file. Match OEM part number 4201395 and confirm fitment for Caterpillar Engine Spare Par...
This Thermostat is indexed for CAT AP1000; CAT AP-1000E; CAT AP-1000F; CAT AP1055. Compare reference number 4201395 against the label on your existing Caterpillar component before ordering.
Additional cross references on file: 4973990, CA4973990. If your machine plate shows a different number, submit a fitment inquiry with photos before checkout.
| Overall Width (In) | 4.41 |
|---|---|
| Overall Height (In) | 3.79 |
| Housing Diameter (In) | 0.35 for mounting |
| Outside Diameter (In) | 2.25 of thermostat |
| Part Number | 4201395, 420-1395, 4973990, 497-3990, CA4973990 |
Match the OEM or reference number first, then verify machine model, engine model, serial number, connector layout, mounting points, and old part photos.
Yes. Send the old part number, machine plate, and photos through the fitment inquiry form. Support can review possible replacements or alternatives.
Products are indexed as replacement parts unless explicitly marked otherwise. Always compare reference numbers and confirm fitment before purchase.
