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SKU #: TF-73 MPN #: TF-73

Complete Performance Thermostat Fix 94-03 Ford 7.3L Powerstroke

$56.99
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Description
Tired of dealing with a leaking thermostat housing on your 7.3L Powerstroke? You’re not alone. The factory upper water pump neck is notorious for leaking due to thin metal that warps and doesn’t clamp evenly when tightened. This kit is the proven fix.   The Complete Performance Thermostat Fix is designed to evenly distribute clamping force across the factory housing, eliminating leaks for good—whether you’re running an OBS or Super Duty 7.3. What’s Included: Thicker upgraded O-ring for improved sealing Black powder-coated stainless steel seal plate for even clamping pressure New longer bolts to properly secure the assembly Why It Works: Factory housings can flex and seal unevenly This stainless seal plate pulls the housing down evenly Eliminates repeat leaks and coolant seepage Built from stainless steel and powder coated for extreme durability Fitment: 1994–1997 Ford OBS 7.3L Powerstroke 1999–2003 Ford 7.3L Powerstroke Proven Solution:If you own a 7.3L, chances are you’ve fought this leak before. The THFR (Thermostat Housing Fix Repair) was engineered to solve it once and for all—no more bandaids, no more coolant mess.
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Tired of dealing with a leaking thermostat housing on your 7.3L Powerstroke? You’re not alone. The factory upper water pump neck is notorious for leaking due to thin metal that warps and doesn’t clamp evenly when tightened. This kit is the proven fix.

 

The Complete Performance Thermostat Fix is designed to evenly distribute clamping force across the factory housing, eliminating leaks for good—whether you’re running an OBS or Super Duty 7.3.

What’s Included:

  • Thicker upgraded O-ring for improved sealing

  • Black powder-coated stainless steel seal plate for even clamping pressure

  • New longer bolts to properly secure the assembly

Why It Works:

  • Factory housings can flex and seal unevenly

  • This stainless seal plate pulls the housing down evenly

  • Eliminates repeat leaks and coolant seepage

  • Built from stainless steel and powder coated for extreme durability

Fitment:

  • 1994–1997 Ford OBS 7.3L Powerstroke

  • 1999–2003 Ford 7.3L Powerstroke

Proven Solution:
If you own a 7.3L, chances are you’ve fought this leak before. The THFR (Thermostat Housing Fix Repair) was engineered to solve it once and for all—no more bandaids, no more coolant mess.


Vehicle Fitment
1994 - 2003 Ford 7.3L Powerstroke
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
About Complete Performance
As the self-proclaimed OBS (Old Body Style) Ford Experts, the brothers that own Complete Performance, Paul and Chris Rutledge, have some big boots to fill. Fortunately, their entire team has the knowledge, experience, and reputation to back it up. Located in Jasper, Texas, they have turned from a small diesel repair and performance center to a widely recognized organization that is continually bringing to market new products and building vehicles you will find center stage at SEMA and gracing the pictures of performance magazines. Whether you drive an OBS Powerstroke or not, you can count on Complete Performance for upgrades that will deliver.

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