Thermostat illustration – not the actual part
Roll over image to zoom in Click on image to zoom
Thermostat illustration – not the actual part

Aftermarket parts may appear slightly different, including the packaging.

Northern LightsNorthern Lights Thermostats

Northern Lights NL-600-421-6650 Thermostat For Diesel Engines

149F/65C, Purple

OEM #: 6004216650SKU: NL6004216650

Ships in 1-2 days

$287.66

Taxes and Shipping are calculated at checkout

Special Order Item - not eligible for return

This is a Northern Lights Thermostat.

SKU NL6004216650
OEM Number 6004216650
OEM Brand NORTHERN LIGHTS

Warranty

View warranty details

Genuine Northern Lights parts warranty

View genuine 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.