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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Racing Thermostat BMW M52/M54/M56 95-06Mishimoto has developed a performance low temp racing thermostat for the BMW M52, M54, and M56 engines. This Mishimoto racing thermostat is ideal for modified engines that demand more from their cooling systems. Our thermostat begins opening 48F (27C) earlier than the stock thermostat to allow coolant to flow into your radiator and begin shedding heat sooner. This thermostat comes pre installed in a durable OEM quality housing and fits many BMWs
Mishimoto has developed a performance low-temp racing thermostat for the BMW M52, M54, and M56 engines. This Mishimoto racing thermostat is ideal for modified engines that demand more from their cooling systems. Our thermostat begins opening 48°F (27°C) earlier than the stock thermostat to allow coolant to flow into your radiator and begin shedding heat sooner. This thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 chassis.
Like all Mishimoto performance products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty.
- Direct fit for BMW M52, M54, and M56 engines
- Begins opening 48°F (27°C) earlier than stock to let coolant flow through your radiator sooner
- Thermostat pre-installed in OEM-style housing
- Includes thermostat housing gasket
- Mishimoto Lifetime Warranty
- OEM Activation Temp C: 97°C
- OEM Activation Temp F: 206°F
- Install Torque Specs: 7 ft lbs for the four T30 bolts which secure the plastic housing components
- Mishimoto Activation Temp (Fahrenheit): 158°F
- Mishimoto Activation Temp (Celsius): 70°C
- (1) Mishimoto Thermostat w/ Housing and Sensor
- (1) Thermostat Housing Gasket
- Mishimoto Lifetime Warranty
- 2001 - 2005 BMW 320i Base
- 2000 BMW 323Ci Base
- 1999 - 2001 BMW 323i Base
- 1999 BMW 323is Base
- 1999 - 2000 BMW 323ti Base
- 2001 - 2006 BMW 325Ci Base
- 2001 - 2005 BMW 325i Base
- 2001 - 2005 BMW 325xi Base
- 2000 BMW 328Ci Base
- 1999 - 2000 BMW 328i Base
- 1999 BMW 328is Base
- 2001 - 2006 BMW 330Ci Base
- 2005 BMW 330Ci M
- 2001 - 2006 BMW 330i Base
- 2005 BMW 330i M
- 2001 - 2005 BMW 330xi Base
- 2001 - 2005 BMW 525i Base
- 1999 - 2000 BMW 528i Base
- 2001 - 2005 BMW 530i Base
- 2004 - 2006 BMW X3 2.5i
- 2004 - 2006 BMW X3 3.0i
- 2001 - 2006 BMW X5 3.0i
- 2001 - 2006 BMW X5 4.4i
- 2003 - 2006 BMW X5 4.4i Formula 1
- 2002 - 2006 BMW X5 4.4i Lujo
- 2002 - 2006 BMW X5 4.4i Top Line
- 2002 - 2003 BMW X5 4.6is
- 2004 - 2006 BMW X5 4.8is
- 1999 BMW Z3 1.9i
- 2000 BMW Z3 2.0i
- 2001 - 2002 BMW Z3 2.2i
- 1999 - 2000 BMW Z3 2.8i
- 2001 - 2002 BMW Z3 3.0i
- 1999 - 2002 BMW Z3 Coupe
- 1999 - 2002 BMW Z3 M Coupe
- 1999 - 2002 BMW Z3 M Roadster
- 1999 - 2002 BMW Z3 Roadster
- 2003 - 2006 BMW Z4 2.5i
- 2003 - 2006 BMW Z4 3.0i
- 2006 BMW Z4 Coupe 3.0si
- 2006 BMW Z4 M Coupe
- 2006 BMW Z4 M Roadster
- 2006 BMW Z4 Roadster 3.0i
- 2006 BMW Z4 Roadster 3.0si
Note: Vehicle must be equipped with stock plastic thermostat housing (Genuine BMW 11537509227) in order to install this thermostat.The metal pin must be carefully removed from the Mishimoto thermostat with pliers before installed into plastic thermostat housing.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 1457 reviews
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Product Reviews
★★★★★ 4
Good product
Size: 6 Pieces
Fun for dogs with anxiety or bored. Easy to fill and clean with different options to build.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Durable and fun
Size: 4 Pieces, Size: 4 Pieces
I have a chewer who gets bored in the afternoon. She loves these Lego blocks. They’re sturdy enough for a big chewer and they hold her interest . She really enjoys figuring out how to get her breakfast!
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Reviewed in the United States on June 4, 2026
★★★★★ 3
Love the idea!
Size: 6 Pieces, Size: 6 Pieces
Love the idea of this product! Arrived 3/25/2026 and started using it the same day. Lab puppies (8 months old) loved it too, until one of the tabs was chewed off 😞
One of the puppies ate something (not this product) last week and was sick & finally threw up the rubber pieces he ate. So they can’t use the toys they love!
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Get 8 pack for bigger / stronger dogs
Size: 6 Pieces, Size: 6 Pieces
This is the best puzzle toy i have found for my GSD mix. All around high quality product 10/10. Thick, durable rubbery material that holds up against a strong chewer. Individual pieces are big and bulky enough that i don’t have to worry about my bigger dog accidentally (or intentionally) swallowing a piece, so i don’t need to supervise.
That being said, if you have a bigger dog or a strong chewer, i HIGHLY recommend getting the 8 pack if you actually want to keep them busy for more than 20 mins consistently. Bigger dogs just have more leverage to tug on the pieces because obviously…they are bigger, so its just easier for them. The more pieces you add and more tangled/thicker you can make it, the less leverage they have and the harder it is for them to get a good grip.
I have a german shepherd/pitbull mix (big boi, v smart, v strong) and i initially got the 4 pack which, after the first few times, only took him about 5 mins to get all the pieces apart even with level 5 connections. So I ordered an additional 6 pieces (i have a total of 10 pieces now) so i could make it harder for him and it was totally worth it.
Now I use 8 pieces with level 5 connections and vital essentials freeze dried beef liver treats inside for my GSD and it consistently takes him 30+ mins to get the whole thing apart. I have timed this lol. I can rebuild the 8 pieces multiple different ways to make it more or less challenging (but i always opt for as difficult as possible to keep him entertained for as long as possible)
I use the other two pieces with a level 1 or 2 connection for my other dog- bordercollie mix who is not a very strong chewer, he mostly just rolls it around/ licks it until it finally opens or i help him.
Both of my dogs are obsessed with this. And i love watching them try to figure it out.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Awesome Tough Chewer Focus Puzzle
Size: 8 Pieces, Size: 8 Pieces
Our 2 yr old busy Mini Goldendoodle (24lbs) looooves this!
The material is super tough, yet malleable; he has chewed away and you can’t even tell.
We got the 8 pack, worth it! I load them all up with mostly kibble and a treat or two. It took just a short time for him to figure out how to really get it apart. On 1 it came apart really easy for him. We are mostly on 3s, with 2s. When he gets down to only 2 pieces connected it’s usually a 3 and it takes a little longer to get apart due to less leverage.
It is mostly easy to use but the higher the plug end is, the more effort it will also take for YOU to get it together. The numbers are a little hard to see, more so on the yellow over the blue.
If you use kibble like me, don’t fill it too full as then it won’t connect fully and be prepared for kibble to fly everywhere when they finally get it off. There are holes in the plug part, if you put something in it like peanut butter, remember to poke the holes out! Eew! Other than that they are fairly easy wash out in the sink!
Overall, this has become our go to, extended focus, quiet time, [essentially a] slow feeder!
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Reviewed in the United States on April 24, 2026