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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Mishimoto MMTS-E46-99E FITS: BMW M52/M54/M56 Direct Fit Replacement Thermostat w/Housing 97 Deg. C ThermostatsMishimoto has developed a direct fit replacement thermostat for the BMW M52, M54, and M56 engines. This Mishimoto thermostat is the ideal replacement for your failed stock thermostat. Our thermostat comes pre installed in a durable OEM quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto cooling products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty. Opens at stock temperature
Mishimoto has developed a direct-fit replacement thermostat for the BMW M52, M54, and M56 engines. This Mishimoto thermostat is the ideal replacement for your failed stock thermostat. Our thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto cooling products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty.
- Opens at stock temperature to restore cooling system performance
- Thermostat pre-installed in OEM-style housing
- Includes thermostat housing gasket
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2000 | BMW | 323Ci | Base |
| 1999-2000 | BMW | 323i | Base |
| 1999 | BMW | 323is | 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 |
| 2001-2005 | BMW | 330i | Base |
| 2001-2005 | BMW | 330xi | Base |
| 2001-2005 | BMW | 525i | Base |
| 1999-2000 | BMW | 528i | Base |
| 2001-2005 | BMW | 530i | Base |
| 2004-2005 | BMW | X3 | 2.5i |
| 2004-2006 | BMW | X3 | 3.0i |
| 2001-2006 | BMW | X5 | 3.0i |
| 2001-2006 | BMW | X5 | 4.4i |
| 2002-2003 | BMW | X5 | 4.6is |
| 2004-2006 | BMW | X5 | 4.8is |
| 1999-2002 | BMW | Z3 | Coupe |
| 1999-2002 | BMW | Z3 | M Coupe |
| 1999-2002 | BMW | Z3 | M Roadster |
| 1999-2002 | BMW | Z3 | Roadster |
| 2003-2005 | BMW | Z4 | 2.5i |
| 2003-2005 | 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 |
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
4.1 ★★★★★
Based on 524 reviews
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Product Reviews
★★★★★ 4
Good but not great
This tooth paste tastes very good but I'm not sure it has enough grit to keep teeth clean. My kids have to brush at least 3 times a day to keep their teeth white and not yellow. I help them brush at least once a day and we have had good check ups while using Boka
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Reviewed in the United States on December 20, 2025
★★★★★ 5
Love it !
Size: 4 Fl Oz (Pack of 1), Set name: A. Charcoal Yuzu Mint
I ordered Boka Fluoride-Free Toothpaste because I wanted a natural alternative without fluoride. It has a pleasant, mild mint flavor that isn’t overpowering, though I have to say it has a slight taste that reminds me of a banana peel kind of unique but not unpleasant. The toothpaste has a smooth texture and cleans well without being harsh or drying.
After using it for a few weeks, I’ve noticed my teeth feel fresh and my gums aren’t irritated at all. It’s a great option if you’re looking for a fluoride-free toothpaste that still gives you a clean, fresh mouth.
I’m happy with this product and plan to keep using it.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Kid and mom and dental professional approves. P.S get the floss too.
My toddler loves this toothpaste. He gets so excited when he sees me load up his toothbrush for the evening. I like that it is fluoride free so I don’t have to worry about him eating it. Because he will, because he is 16 months old. I love that it still has the remineralizing component (anti-cavity, strong enamel) of the nano-hydroxyapatite. As a dental hygienist (and mom) this is important to me.
Personally… the vanilla cardamom is not my favorite flavor. I wanted to try out the limited edition and I like cardamom (just not in toothpaste apparently) However, my son loves it! Boka has lots of different flavors I’m sure we will try over time. I’m sure I will find one I like better.
P.S Boka floss is amazing. I recommend it to many of my patients, and I use it at home.
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Reviewed in the United States on April 24, 2026
★★★★★ 3
Torn About Whether to Keep Using
I bought the Vanilla Cardamon flavor, because I'm allergic to mint, and it makes my mouth swell. It tastes nice. The "flavor" doesn't last a long time, so you don't necessarily get that fresh breath feeling. The toothpaste works fine. There seems to be some controversy over whether Nano Hydroxyapatite Toothpaste really protects teeth as well as fluoride, but I know some people swear by it. Obviously, there is also lot of controversy regarding fluoride and whether it's healthy, so I get why this might be a better option for some. I've been using it for about a year, and I got a fairly bad cavity recently, but of course, this is just anecdotal evidence. I'm not sure whether I'll keep using it or not.
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Reviewed in the United States on December 13, 2025
★★★★★ 5
Great for sensitive teeth
Size: Pack of 3, 4 Ounce, Set name: E. Ela Mint, Coco Ginger, Lemon Lavender
If you have sensitive teeth, these are great. I had prescription toothpaste and couldn’t get it anymore and picked this up. It’s helped tremendously. No different than normal toothpaste consistency-wise but the flavors are the best.
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Reviewed in the United States on April 11, 2026