"The o-rings took some playing with to get to sit in the hokes just right but it all fit and bolted up great. The teplwcement bolts included were a great choice, easy install."
Cummins
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SKU #: DS-BLBATH
MPN #: BLBATH
DieselSite Billet Thermostat Housing 99-03 Ford 7.3L Powerstroke
Description
Finally, a quality reusable thermostat housing that will properly seal and look new for years to come, unlike the factory unit.
If you've ever tried to change out your thermostat in the Powerstroke, you'll find that the factory thermostat housing leaves much to be desired. It is a very poor quality stamped steel that doesn't always seal properly when replacing your thermostat and they rust very quickly. The OEM housing is also considered to be "disposable", meaning it's designed for a single usage. If it has to be removed, it must be replaced. The flanges bend under the load of the bolts. The Dieselsite Billet housing is designed to be used over and over again and give you years of trouble-free service.......and it looks great too!
The Dieselsite Stainless Steel mounting bolts with your new Billet Aluminum Thermostat Housing furthers your protection against corrosion. We have experienced that in addition to the stock thermostat housing having corrosion concerns, the stock steel mounting bolts also are susceptible to excessive corrosion. Gasket and replacement bolts included.
Important Note:Torque Specs for Thermostat Housing bolts 100-110 in-lbs
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About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
How it works
After checkout, we route your vehicle info and part SKU to verified installation shops near you. Local installers review the job and submit competitive bids; you pick the shop you want based on price, reviews, and availability. Your name and email stay private until you select an installer.
Pricing
You pay for the bid from your preferred shop. The full amount is shown before you confirm — installers cannot add charges without your written consent. Payments are processed securely by Stripe.
Your privacy
During bidding, shops see only your service ZIP code, vehicle year/make/model, and the part SKU — not your name, email, or address. Only the shop you select receives your contact details after payment. We never sell your personal information.
More detail at wrenchconnected.com.
About DieselSite
DieselSite is a company dedicated towards building exacting components to improve the overall performance and reliability of your diesel. They are probably best known for their series of Wicked Wheel compressor wheel upgrades. Because of the original success of the Wicked Wheels for 7.3L Powerstrokes, they have built a multitude of new and ever-growing applications, as well as improving upon original designs.
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Overall rating: 4.785714 / 5 from 28 reviews.
AI Generated Review Summary
The DieselSite Billet Thermostat Housing is highly praised for its perfect fit, ease of installation, and leak-free performance. It offers a durable and reusable alternative to the disposable factory unit, with a sleek appearance and corrosion-resistant features.
Summary topics
- Product Fit: 24%
- Leak Prevention: 20%
- Product Aesthetics: 24%
Review topics: [fit, looks, quality, install, replacement, improvement, issues, buy, leaks, housing, seal, upgrade].
Review highlights
- "Fit great looks good as well" —
- "Service and shipping were great, have installed the part but the quality looks good!" —
- "Highly recommend this housing!" —
Reviews
"Horrible shipping"
Thermostat
"Fit great looks good as well"
Much better than the stock
"Much better than the stock housing. No leaks. Can be reused"
Good fit
"Installer was happy with the parts."
Great fit!
"Great fit!"
Fit up was great with
"Fit up was great with the new thermostat and housing. Sealed up perfect with no issues."
Best housing you can buy
"Best quality upgrade you can get for the price. Replaced my old housing with this and the replacement couldn’t have been better. Buy this and the 203 thermostat and you’ll be happy."
Fits great! The old factory
"Fits great! The old factory one was leaking and I threw this new one on and it hasn't leaked a drop yet! Great quality!"
So glad I found this
"So glad I found this here. This will last and no issues with leaking like the oem. Just get you one."
Q&A
- I just purchased the billet housing and thermostat for 2003 f250 7.3. The housing came with a oring and but the thermostat already had a gasket (oring ) on the edges , so I still use the oring that came with housing ?
- Yes, as far as I know you are still going to want to use the o-ring. -Sands
- Do you offer one for a 1990 model (NOT the 'Powerstroke' designation), just International Harvester 7.3L V-8 (naturally aspirated) that was factory installed in the Ford diesels of that year?
- Unfortunately there is nothing on the 1990 models at this time no. -AW