Built for boost. Organized for speed.Free shipping on qualifying orders over $199Browse all in-stock parts →
My garageSelect a vehicleCartEmpty0
Parts/All parts/Motorcraft
Motorcraft RT1239 Secondary Coolant Thermostat
Motorcraft

Motorcraft RT1239 Secondary Coolant Thermostat

Part # MTCRT1239
$85.34
Ground shipping included in priceAvailable to the contiguous U.S. excluding California
+
Fitment not selectedAdd your truck to verify compatibility
Open Garage →
Fast fulfillmentLive inventory and order status
Secure checkoutProtected by Shopify
Diesel supportReal help for the right part

Product details

Description

The Motorcraft RT1239 Secondary Coolant Thermostat will replace the sticking thermostat on the secondary cooling system on your Ford 6.7L Powerstroke. This thermostat opens at the correct temperature to ensure proper coolant routing through the secondary cooling circuit.

Features
  • Genuine Motorcraft
  • Direct-Fit Replacement
  • For Secondary Cooling System
Complete the job

Build the job. Not just the cart.

Start with the right part, then choose the supporting pieces that help prevent a second teardown or a last-minute parts run.

Choose your supporting parts

Build an install-ready package.

+Select a truck
✓
Motorcraft RT1239 Secondary Coolant Thermostat
Primary part · includedMotorcraft RT1239 Secondary Coolant ThermostatMotorcraft
$85.34
No supporting parts have been verified yet.You can still add the primary part above. We won’t guess at compatibility.