Improved diesel opertion
"Running a '97 Ford 7. 3L. Previous thermostat was 180° and motor never properly warmed. This switch greatly improved operating temps. Thank you"
Cummins
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SKU #: DS-DS203
MPN #: DS203
DieselSite 203* Thermostat 96-03 7.3L Ford Powerstroke
Description
203° is the temperature that Navistar designed your truck to run at. This is the thermostat that was and still should be in every 7.3L! Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. This Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that you no longer have to give up the benefits of running your vehicle where it was meant to run.
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About WrenchConnected
WrenchConnected is an independent installation marketplace operating in partnership with Diesel Power Products.
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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.
Video
Product Overview: DieselSite 203 Degree Thermostat
203 degree is the temperature that Navistar designed your truck to run at. This is the thermostat that was and still should be in every 7.3L!
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Overall rating: 4.892857 / 5 from 56 reviews.
AI Generated Review Summary
The DieselSite 203° Thermostat is designed for 7.3L Ford Powerstroke engines, ensuring optimal performance by maintaining the intended 203° operating temperature. Customers have praised its easy installation and perfect fit, making it a reliable choice for those seeking to restore their vehicle's original temperature settings.
Summary topics
- Installation Ease: 13%
- Product Fit: 13%
Review topics: ["fit","service","quality","install","difference","replacement","issues","works","buy","thermostat","truck","heat","engine","miles","leaks","housing"].
Review highlights
- "easy install, much quicker heat in the winter and . . . . . ." —
- "What can I say, easy install and I can now see the needle on the temp gauge a bit higher than it was before." —
- "I had a coolant leak from a warped housing and this new kit was the perfect fit." —
Reviews
7. 3 Thermostat
"Glad I did some research and found this site offering the correct operating temperature thermostat. I had already purchased one from another company and ended up sending it back."
Dieselsite 203 degree thermostat
"I started using Dieselsite’s 203 degree thermostat about five years ago, my 7. 3 does seem to run better at 203 degrees as far as power, fuel efficiency, and even maybe a little smother. I picked an extra one up to keep in the glove box."
203 thermostat
"Works great"
Fit was fine, overall quality
"Fit was fine, overall quality is fine, my trucks Engine oil temp now sits at 205° freedom. I have not yet been able to nail down duel economy increase or decrease yet."
It works
"So far, so good. Had an upper hose split but not the fault of DieselSite parts."
easy install, much quicker heat
"easy install, much quicker heat in the winter and . . . . . . believe it or not I do think I get better mileage. recent trip 400 miles each way was noticeable each way. got 16 + each way at 75mph."
Working great!
"Working great!"
Very impressive, glad I purchased
"Very impressive, glad I purchased this item. The thermostat housing was a good fit stopped my leaking problem. These 2 items are a 5 star buy."
Just what I needed. Truck
"Just what I needed. Truck runs smoother with the added heat."
Q&A
- Is this thermostat 64mm x 44mm With a bottom disc of 34mm.
- It measures 2-1/2" Flange Diameter, 1-3/8" bypass Diameter, and 2-9/16" Height. Thank you.
- Is this thermostat the long neck?
- Yes, this is a 203 degree long stem stock style replacement thermostat.