Gerard S.
Haven't installed it yet. On my second engine in my truck "670k miles". Noticed the temp difference soon as I got it back from the dealer. Stock thermostat gone soon as possible. Works amazing in Colorado mountains. Still gets up to 230 go up pulling a trailer but dissipates heat a lot faster on the way back down.
Devin C.
I ordered the new high flow thermostat from spe and now the truck runs about 20• cooler. The part was a good quality and the customer service was fantastic when I had an issue. Will order from here again
Jordan A.
My coolant started flowing allot sooner and kept my temps down while towing. My old thermostat was looking a little worn, glad I changed this out in time. 2017 F350 6.7
Aaron C.
Product is high quality. Meets or exceeds oem quality standards. Fitment was also perfect. I have been running 15-20 degrees cooler since install. Very happy with the purchase. Install was a breeze after i realized i needed to drain more coolant than i initially thought haha. Made a bit of a mess. Excited to outfit my truck with many more SPE products.
Brandon H.
Great product at a great price and arrived on time
Silas J.
Love it easy install and Big noticeable temperature drop in the Coolant temp
Erik g.
Great product truck runs 5-10 degrees cooler
Brandon L.
Looks like nice quality, haven’t had a chance to install yet. Will update with engine temps
Matthew B.
Easy install. After draining off some coolant total install time took about 30 minutes including refill and leak check. Temps have been staying in the 180's.
Ken A.
easy installation. will try it when towing a trailer next summer when it’s hot weather
Butch C.
I haven't been able to install the thermostat yet due to my schedule, but now the summer and towing season are just about over I will probably wait until next spring to install it. Because I have other SPE products installed on my truck I have all the confidence in the world it will work as described. SPE has the best customer service I have every had the privilege of dealing with and their products are top quality. Buy with confidence these guys know what they are doing.
Gerry G.
Still waiting for rest of the parts.
James J.
It does exactly what it claims to do. Lowered my temps drastically and is dropping my oil temps really fast when I get stopped to help prolong the life of my turbo. Awesome! 10/10 would recommend
2011 F-250 6.7l powerstroke
David B.
Quality part as always. Prompt shipment
Paul P.
My 2019 F350 6.7 PowerStroke on the stock thermostat was always idling temp around 192-196F, normal use was 198-204F, and heavy use was 205-230F. Now with the SPE thermostat the idling temps are around 178F, normal use temps are 182-190F, and heavy use is 192-200F. However I have been able to get my temps to get to 226F with heavy off road hill climbing, and I never tried that with the stock thermostat so I cannot comment on what those temps would have been. But I will definitely recommend this thermostat, and will replace mine every 100K as preventative maintenance. Also it's incredibly easy to replace yourself.
Kerry w.
I was getting to high of water temps and oil temps. I installed these lower temp thermostats and have better performance since then. My oil temp stays below 200 and I'm glad for it.
Marty W.
Shipping was fast as usual. Product fits as oem does. My temps have dropped some but not as advertised.
Randy H.
The install was easy , my truck warmed up well to temp ( it has never done this before) . I feel it ran a lot better due to a better operating temperature, provided by the new SPE thermostat.
Konrad P.
Keeps engine/trans cooler. Great for summer weather. I used in combination with SPE upper radiator hose.
Paul W.
As always another Great SPE product
Timothy T.
Great purchase! Thanks for the updates on the shipping progress. Great company!
Tim V.
Installed the thermostat along with their upper radiator hose. First drive in 100+ degree Texas weather and the coolant temperature never got over 183 degrees. Oil temp never went over 185 degrees. Just what I wanted. Thanks.
alan p.
Fit perfectly in housing and is functioning well
Alejandro G.
Great item, and good quality too, works on a range of 176-183, every little thing helps and this is one of them.
Very easy to install, 3 8mm bolts, and you are done.
Brian C.
After installing the new thermostat, when cruising at 75mph, the temp is 79.2 degrees, as opposed to the stock thermostat at 92.2, so overall it’s 13 degrees cooler. Love it!!
Brett J.
Easy install,truck runs cooler
Wesley L.
Easy install . Working great
Oscar L.
I installed the SPE thermostat and at the same time, I installed the SPE upper radiator hose. It was a quick install, and looks like it works as advertised. Engine runs cooler and hose looks a lot better.
Joey T.
These new thermostats do exactly what they say and I like that now my oil temperature stays around 185 unloaded and it will still go higher when towing but not up to 230 like before. However, it does not change the transmission temperature at all. As a matter fact, I think the transmission actually runs hotter because this thermostat has no control over the transmission thermostat.
Scott R.
This t-stat fit perfectly as usual for anything ordered from SPE and the install was simple! I think it arrived before my payment posted in their account it was shipped that dam fast! My 2019 6.7 is running engine coolant temps at 177, engine oil temp at or below 180. Absolutely preforming as or better than expected.
Thanks again to SPE for quality after market mods!
S.R.
Lucas R.
Did lower the temperature and it’s be great
paul m.
This was well worth the wait! My truck is running cooler. Transmission and oil temps all around 185
rich o.
no video to share but my oil and Transmission. temperatures have both drop roughly 20 degrees, so all is good !!
Garren M.
Dropped my temps by almost 30degrees!
Luis V.
This helps out a bunch especially in the areas I am in with hotter climate the best to keep your engine running great
Kooper
Dropped the coolant, engine oil and transmission temps to a more acceptable level!
Joshua W.
Highly recommend.! Transmission temps much better when hauling loads.!
Brian V.
Works as expected. Perfect OEM fitment. Dropped engine oil temp around 6-8 degrees and trans temp 10-12 degrees.
Pedro R.
Works just like it said oil temp doesn’t pass 176-177 degrees, great product!!
Seth K.
Bought one for my 2011 it helped tons. I have more than 20k miles in the tough AZ desert. Bought one to install on my 2017 will update this when I can. Thank you SPE you guys rock!!!
Roger M.
Worked perfectly. Easy install. Lowered my temps.
Hunter F.
Amazing people at SPE. fast shipping and amazing quality as always. The item does exactly what they say, in this Georgia heat towing a 40’ gooseneck loaded down I was seeing temps @ 235 -240. After installing this item it dropped my temps to 200 -205 going 85mph. You can’t beat these guys!!!
Yee yee.
Cody C.
Great product, without towing anything truck stays constant 175 or so, have yet to tow a heavy load but was seeing temperatures around 200 just driving already looks like it will be a great addition to the truck
Clint V.
Tyranny, oil and coolant temps all dropped. Great product. Another home run
Dave r.
Easy install. Did a complete coolant change to new style from ford. Truck runs cooler- 188 degrees instead of 195 degrees. Opens at 175 and seems to control at lower range. Quality item construction for a decent price
Petr B.
I have installed the thermostat and the coolant temperature came down from 205 degrees fahrenheit to 177 degrees fahrenheit. Works great will purchase more for other trucks.
Tony G.
Drained about 3 gal of antifreeze from primary system. Install went perfect because of the perfect OEM fit of the thermostat. Haven’t towed with it yet, but with south Texas heat, my oil temp is constantly 185. We’ll worth it just for that!!!
Eugene B.
Haven't towed with the new thermostat yet so we will know more on colorado trip in September but so far so good. Easy install for sure
Joshua H.
If you tow a lot this is a must. Towed my camper from Fort Smith AR up to MN in 100 degree plus temps and never seen an engine temp above 215. Average temp was around 190 running 70-75. Love these thermostats wish i would have ordered them sooner.
Anthus B.
Great product!! Lowered my ECT by 20° and trans temp by 15°
Dustin M.
Easy install, truck runs 16-18 degrees cooler in all fluids around town can’t wait to see the difference in temperatures while towing
Gilberto P.
Awesome product & super easy to install.
Frederick W.
Simpl to put in. It’s a thermostat,
I’m currently staying in the San Juan’s of Colorado driving/towing at high altitude.
Temp drop is as advertised, trans 180
Oil 185
Trans will go to 210 on long steep climb.
Engine seems to be running abit smoother.
Brandon D.
Super easy install, engine and trans run about 15-20 degrees cooler!
Tony C.
Installed the thermostat last weekend while also installing the upper radiator hose kit. So far the truck hovers around 185-190 max for the oil temp. Very happy with my purchase.
Dakota W.
Installed and dropped Coolant temp and transmission temps around 10 degrees good modification to get transmission temp down some
Doug B.
Didn’t take pics of the temps but my trans would get up to 242!!! I was referred to this company for this thermostat and immediately noticed a huge difference. So far I’ve only seen it get up to 201 and back down to 190. Beyond impressed and highly recommend.
Kotie S.
Installed the thermostat becuase my oil temp was getting a little warm while towing. Dropped all my temps approximately 15-20* depending on ambient temp. First toe test in a few weeks and expecting to see some good results.
Justin S.
Loved the process of everything, was my first purchase from SPE and definitely will be doing it again! More things I want for my truck and the best quality is key and SPE is good quality! Super easy install, instructions where 100% and as promised, lower temps !! Thanks SPE
Chris
Was great working with the SPE Team. Their products are amazing and the quality is top notch. In addition the packaging was very good to ensure everything came as it was designed.
Quinton T.
Faster shipping then expected, awesome detailed instructions, noticeable temp drop as well! Will definitely suggest this part to others and this company to deal with.
Chris S.
Great price, excellent quality, keeps coolant and oil temps in check .
Steven B.
Super quick service. Great product.
Anthony R.
Works as described pretty easy install Temps are much lower I'm glad I purchased this part
Thomas S.
A wise choice to replace this thermostat while doing the CCV reroute.. Super easy install and look forward to reaping the benefits..
Theresa E J.
Straight forward install, easy fit
Alejandro G.
Fast shipping, i was getting email that my item is on its way. I already had the item installed when i was getting those notifications. Product works haven’t seen the transmission go over 195 before I’ve had 209.
Amazed with the product and service.
Greg G.
Great product! Lowered running temps by 20 degrees like advertised
Mikioi E.
Looks and fits just like the OEM thermostat. Haven't had a chance to work the truck but the quality of the part itself is top shelf.
Paul H.
20 degrees cooler while towing! The install was great. Just drain your coolant down & the rest is easy from there.
Mike P.
Awesome products great instructional videos.
Jacob A.
Best investment I’ve made for my truck, easy install and I see much cooler temps now.
torey s.
Great product, great instructions and easy to install!!
Adam S.
Lower temps, who wouldn’t want that.
mark g.
I just finished installing and what a improvement. Now for the record it’s 80 outside… the real test will bee when i’m pulling the trailer.
Corey C.
Old thermostat out, and new one in, running temps have not been above 183 since I installed. So far all the SPE upgrades have been really high quality.
Fred B.
High flow....low temp. Does exactly what it says it does. We pull in 100+ degree weather and the highest I see the oil and Transmission now is about 207 and 203 respectively in that heat pulling 8,000 lbs. If I did not have this then those temps would be a lot higher for sure. Great product!
Perry M.
I pull a 12000 lb 5th wheel as well as construction equipment and needed a cooler running diesel motor for better performance.
Scott G.
I have a 2017 F350 with 410 gears it would normally run 200 2 to 210 with every day general driving now it stays 180 to 185. This should really help when towing my 44 foot fifth wheel.
Jonathan D.
Installed my SPE Low temp High flow thermostat and I love it!
Pulled a load of hay and my 2011 F-350 ran way cooler then before, it dropped my Transmission and oil temperatures about 10 degrees. I definitely recommend buying this SPE Thermostat. GREAT PRODUCT!
John S.
Thermostat works excellent. Very happy with it. The only problem was it was on back order and took me four months to get it, but it was worth the wait.
Troy F.
Fit like a champ.
Great product.
Kevin M.
A must have for these torque monster 6.7’s!!!
Tranny much happier at lower temp ranges, especially in the very humid coastal region that I work and travel.
Jerad E.
Great replacement
Andrew S.
Well built. Works as advertised.
Cody B.
Love the part fast shipping
Ryan R.
Easy install and does exactly what it says it does
Brandon W.
Love how cool it keeps my trans temp way lower than before
Gary C.
New to the diesel world with a 2015 F350 DRW. Installed the Thermostat without comparing before and after as I wanted to make the upgrades before hauling. Ran the truck to Tucson and Prescott from California to pick up a new horse trailer. No problems whatsoever. Then ran the truck under load running to Northern CA for Turkey Day. Again, no issues whatsoever. The truck ran exceptionally cool while running up the Grapevine towing 15k+ lbs. on the bumper and it ran perfectly.
Not sure if the product did what it was supposed to do however, the temperature on motor and trans worked perfectly. Definitely support the product as it is an easy install, even for a Diesel virgin!
Tytus B.
Dropped the temps dramatically. Trans and oil temp barely ever see over 185° now. Very impressed
Edye R.
Really easy to install. Saw the difference and the first test drive.
Adam A.
After oil temps shot up to 235+ when towing I had to get this! Oil, coolant, and trans temps are back where they should be now that it's installed. I bought two at the same time and gave one as a gift to a friend :)
Leopoldo Q.
Great product !! Wish I had done the thermostats sooner.
Ken J.
2017 Ford F350 Lariat -6.7 Powerstroke
Bought the SPE thermostat designed for the Powerstroke as I was having issues pulling my 40' triple axle 5th wheel during the summer when outside temps would get above 95 degrees.
I was going to flush all of the fluid, replace a couple hoses and make sure system was in good shape - when I ran across the SPE Thermostat. After reading the reviews, it seemed like a "no brainer", so I bought it.
I have installed the new SPE Thermostat and have nothing but good things to say.
Super fast shipping - got the part in like 2 days.
Super easy install - only had to pull 3 bolts on top of the motor.
Engine oil temps before installing were running 199-201 (not pulling trailer, highway driving at about 75mph, and with OAT of about 75 degrees).
Engine oil temps after install dropped to 181-183 right away under same conditions.
Can't wait to see the change in the summer pulling the trailer, but I am sure it will make a huge difference.
Well worth every penny!!
Juan H.
Great product, no problems with the install. Truck seems to run a little cooler.
