Thermostat illustration – not the actual part
Diesel Parts Direct logo
Roll over image to zoom in Click on image to zoom
Thermostat illustration – not the actual partDiesel Parts Direct logo

Aftermarket parts may appear slightly different, including the packaging.

Caterpillar3000 SeriesOther Cooling

DS-4W-8063 Thermostat For Caterpillar Engines

Compatible With 3054, 3054T, 3056, and 3056T Engines (200degF / 94degC)

OEM #: 4W8063SKU: DS4W8063

Ships in 1-2 days

$42.33

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

The DS-4W-8063 thermostat can be used in the following Caterpillar engine models:

  • 3054 and 3054B naturally aspirated with an engine serial number of:
    • 5PC1 and above
    • 5YS1 and above
    • 6FK1 and above
    • 7BC1 and above
  • 3054 turbocharged with an engine serial number of:
    • 5PC1 and above
    • 6FK1 and above
    • 7BC1 and above
  • 3056 and 3056B naturally aspirated with an engine serial number of:
    • 1ML1 and above
    • 7AK1 and above
    • 7MS1 and above
    • 8XJ1 and above
    • CKS1 and above
  • 3056 turbocharged with an engine serial number of 1ML1 and above or 7MS1 and above
SKU DS4W8063
OEM Number 4W8063
Part Type Cooling, Other
OEM Brand CATERPILLAR

Aftermarket warranty

View full warranty details
  • Orders are processed the same or next business day
  • Expedited shipping options available at Checkout
  • If same-day shipping is critical, please call to confirm availability

View full shipping policy

Call any of our friendly Parts Dept. Specialists with your engine serial number, and we can quickly verify whether this part is the correct part for your engine — no guesswork.

Phone: 888.687.0539

Don't know how to find your engine serial number? Go to our Engine Help Center for assistance.