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Description
Thermostat – Fits Yamaha F225/F250/F300 4.2L V6 Outboards (Replaces 6CE-12411-00-00)Thermostat Fits Yamaha F225 F250 F300 4. 2L V6 Outboards (Replaces 6CE 12411 00 00) This aftermarket thermostat is designed for Yamaha F225, F250, and F300 4. 2L V6 four stroke outboards from 2006 and newer. It also fits Yamaha VF250 outboard models from 2015 onwards, ensuring reliable temperature regulation for optimal engine performance. This component is a direct replacement for Yamaha OEM part number 6CE 12411 00 00. Operating Temperature: 52C
Thermostat – Fits Yamaha F225/F250/F300 4.2L V6 Outboards (Replaces 6CE-12411-00-00)
This aftermarket thermostat is designed for Yamaha F225, F250, and F300 4.2L V6 four-stroke outboards from 2006 and newer. It also fits Yamaha VF250 outboard models from 2015 onwards, ensuring reliable temperature regulation for optimal engine performance.
This component is a direct replacement for Yamaha OEM part number 6CE-12411-00-00.
- Operating Temperature: 52°C (125°F)
- Installation Location: Engine Block/Thermostat Housing
- Application: Yamaha 4.2L V6 cooling systems
Part Number Cross-Reference
Use this table to confirm equivalent part numbers across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| Yamaha | 6CE-12411-00-00 |
Compatible Engine Models
Confirm your engine model/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F225NCA | 225 | 4-Stroke | 2011-2016 | 6CE-12411-00-00 | |
| Yamaha | F225XB | 225 | 4-Stroke | 2016+ | 6CE-12411-00-00 | |
| Yamaha | F225XCA | 225 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | F250DET1X | 250 | 4-Stroke | 2010+ | 6CE-12411-00-00 | |
| Yamaha | F250NCA | 250 | 4-Stroke | 2014-2016 | 6CE-12411-00-00 | |
| Yamaha | F250UCA | 250 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | F250XB | 250 | 4-Stroke | 2016+ | 6CE-12411-00-00 | |
| Yamaha | F250XCA | 250 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | F300BET1U | 300 | 4-Stroke | 2010+ | 6CE-12411-00-00 | |
| Yamaha | F300BETU/BETX | 300 | 4-Stroke | 2016+ | 6CE-12411-00-00 | |
| Yamaha | F300NCA | 300 | 4-Stroke | 2014-2016 | 6CE-12411-00-00 | |
| Yamaha | F300UCA | 300 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | F300XCA | 300 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | FL250DET1X | 250 | 4-Stroke | 2010+ | 6CE-12411-00-00 | |
| Yamaha | FL300BET1U | 300 | 4-Stroke | 2010+ | 6CE-12411-00-00 | |
| Yamaha | FL300BET1X | 300 | 4-Stroke | 2010+ | 6CE-12411-00-00 | |
| Yamaha | FL300BETU/BETX | 300 | 4-Stroke | 2016+ | 6CE-12411-00-00 | |
| Yamaha | LF225XB | 225 | 4-Stroke | 2016+ | 6CE-12411-00-00 | |
| Yamaha | LF225XCA | 225 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | LF250UCA | 250 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | LF250XB | 250 | 4-Stroke | 2016+ | 6CE-12411-00-00 | |
| Yamaha | LF250XCA | 250 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | LF300UCA | 300 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | LF300XCA | 300 | 4-Stroke | 2010-2016 | 6CE-12411-00-00 | |
| Yamaha | VF250XA | 250 | 4-Stroke | 2015-2016 | 6CE-12411-00-00 |
Technical Specifications
| Specification | Value |
|---|---|
| Product Type | Thermostat |
| Installation | Engine Block/Thermostat Housing |
| Operating Temperature | 52°C (125°F) |
| Warranty | Factory Yamaha Warranty |
| Other Technical Attributes | Used in Yamaha 4.2L V6 cooling system |
Package Contents
1 x Thermostat (Replaces 6CE-12411-00-00)
Installation Guide
Follow these general steps to replace the thermostat. Always consult your service manual for model-specific instructions and torque specifications.
- Disconnect the Battery: Ensure the engine's negative battery cable is disconnected to prevent accidental starting.
- Drain Coolant: Drain the engine coolant to a level below the thermostat housing.
- Locate Housing: Identify and access the thermostat housing on the engine block.
- Remove Housing: Carefully unbolt and remove the thermostat housing cover. Note the orientation of the parts.
- Remove Old Thermostat: Take out the old thermostat and its gasket or seal.
- Clean Surfaces: Thoroughly clean the mating surfaces of the thermostat housing and the engine block.
- Install New Thermostat: Place the new thermostat in the engine, ensuring it is correctly oriented. Install the new gasket.
- Reinstall Housing: Securely reinstall the housing cover and tighten the bolts to the manufacturer's recommended torque.
- Refill Coolant: Refill the cooling system with the appropriate coolant.
- Check for Leaks: Reconnect the battery, start the engine, and let it warm up. Carefully check for any coolant leaks around the housing.
Troubleshooting & FAQ
How do I confirm this thermostat fits my engine?
First, check your original part for the number 6CE-12411-00-00. Next, find your engine's model and year in the "Compatible Engine Models" table above. For extra certainty, you can use the Yamaha parts catalog link provided to see an exploded view of your engine's assembly.
What are the signs of a faulty thermostat?
Common symptoms include the engine overheating (running too hot) or failing to reach its normal operating temperature (running too cool). An engine temperature alarm may also activate.
What temperature does this thermostat open at?
This thermostat is designed to open at 52°C (125°F) to begin circulating coolant through the engine.
OEM vs. Aftermarket?
This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.
How fast do you ship and how much does it cost?
We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.
What is your warranty and return policy?
This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.
Important Notes
- Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
- This product is an aftermarket replacement part and is not an OEM component.
- Professional installation is recommended to ensure safety and optimal performance.
Why Choose JLM MARINE?
- Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
- Fast Global Shipping: Free delivery worldwide in 5–15 days.
- Direct from Manufacturer: Competitive pricing without compromising quality.
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
4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Still The Best Frother Ever!
Color: Black
I love how it is easy to use, how it holds a charge, and how much power it has. I've only charged it once since I got it & I've been using it on a daily basis!!! Though it isn't a long time, I'm happy with it so far! I definitely will recommend it to anyone looking for a great frother. If you are looking for one, look no further! You won't be disappointed! I've read some comments where they found it to be too strong that their drink spilled everywhere. But for me I have not had any incident of spilling over. I have used it both for my coffee and my matcha tea and it worked great without any spilling over. You just have to start with the lowest power and ensure that you have a large enough container to have a room for your frothing. My sister tried to use it recently during her visit to make us matcha tea. However, she experienced spillage all over the cup, because she had used a small cup. Otherwise, she liked it very much and said she will get one when her battery operated one stops working...
Another thing I like about the product was the customer service that I had received. When I got my first order which came quickly, it wasn't working after having charged it over 24 hours. It was not turning on at all. I returned it and ordered a replacement which I received within a day or two. This time after charging it for the recommended amount of time, I was a bit skeptical when I turned it on. However, I was pleasantly surprised that it worked like it was supposed to and it has been working ever since having charged it only once so far. I may come back and give an update depending on how it does after 6 months of use, so keep in tune...
I don't know if there is a way to write a new entry as a follow up to the old entry, so I'm going to add my follow up comment over here.
May 23, 2025 - I love my frother more than I can say in words. It's functionality has not changed a bit from the time I have purchased it. It charge lasts several weeks to few months before I charge it again and the power is still the same. Recently I decided to buy another one for my office use. I like the white color and so tried it but that one wouldn't even turn on. And then I got a gray one to have a different color. That one was much weaker than the black one I own. Then I replaced it with another gray one within few days. I tried it and it was exactly the same as the one I already replaced. So then I decided to go with a black one again hoping that it would be the same as the one I have. The black one did much better than the gray ones in the strength or power of the frother. However, it is weaker than the one I already have been using since last August. While I am not very happy with the quality being inconsistent in all of the ones I have tried including the recent pictures of the black one, I have decided to keep the black one because it is relatively better than the gray ones I tried. What I don't understand is why there is inconsistency in the quality of the same product by the same maker. I am beginning to wonder if the black one I purchased in Augusta last year was anomaly of a quality and a good way. Maybe I lucked out on my older black frother, but I'm unsure if quality is going to get better if I were to order another one. I have a sister who is a pro in making coffee drinks and she was the reason I had ordered this frother to begin with. She uses a battery operated one at this time and I have been thinking about getting her one like mine. While I am still skeptical, I am going to give it a shot and order her one sometime soon. If it doesn't work, I guess we will return it back. But one thing that I am grateful is that I have been able to return every one of those that I have tried recently with no issues. I hope that I don't have to return my most recent purchase in black. I was not even able to review the new purchase because of the item being the same color which is crazy.
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Reviewed in the United States on September 8, 2024
★★★★★ 5
Outstanding Frother!
Color: Space Gray
Exceptional! This frother is in another league compared to the cheapo push button frothers. The motor is smooth, quiet and powerful. This has an intuitive thumb dial on top that operates smoothly with a wide range of smooth speed adjustment. It’s gentle enough to froth a little bit of milk for a macchiato and powerful enough to scramble 3 eggs. The head is removable for easy cleaning. It’s also rechargeable. I charged this the day I bought it on April first. I use it at least twice a day. It’s September 26th today and I have yet to recharge it and it’s not showing any signs of needing a charge. One minor quibble is that they give you 2 of the same frother heads. They are built so well, that I don’t imagine it ever wearing out. It would have been nice to get a whisk or something different. Not a deal breaker at all though.
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Reviewed in the United States on September 26, 2025
★★★★★ 5
Solid unit
Color: Black
Handheld Mixer/Frother Review
A Premium Choice That Transforms Morning Coffee
I am thoroughly impressed with this handheld mixer and frother. Each morning, I blend cacao and collagen powder into my coffee, and in the past, I always ended up with stubborn lumps using only a spoon or whisk. I had previously purchased a few inexpensive handheld mixers, but they disappointed me both in price and performance, struggling to mix the powders thoroughly—especially at the bottom of the cup. I came close to abandoning handheld mixers altogether, but decided to give it one last try.
After reading countless reviews and carefully comparing models, I opted to invest in a higher-end handheld mixer. The anticipation was high—would this mixer truly distinguish itself from the budget options cluttering my kitchen drawer? From the moment I unboxed it, the difference was clear. The mixer felt substantial in my hand, and the build quality reflected thoughtful engineering.
While this model cost roughly twice as much as the cheaper alternatives, it proved to be well worth the investment. Initially, I was concerned about the dial at the top, fearing it might be difficult to control. However, I was pleasantly surprised by its intuitive operation. The unit offers a solid feel, plenty of power, and a versatile range of speeds—from a gentle stir perfect for coffee to an impressively fast setting.
I had not previously considered using this mixer as a frother, but as a cappuccino enthusiast, I decided to give it a try. I heated both 2% milk and oat milk to take the chill off, then submerged the mixing wand. Allowing the mixer to rise above the milk introduced air and created a rich, creamy foam—an unbelievable result. My homemade cappuccino now tastes like something from a café.
The controls are robust, the construction is reliable, and the power is consistent. Cleanup is effortless, requiring only a quick rinse under the tap. The battery life is also noteworthy, lasting through several uses without losing strength.
If you are hesitant to spend a bit more on a quality handheld mixer, I wholeheartedly recommend making the investment. This mixer has become an essential part of my morning routine. Excellent product—well done!
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Reviewed in the United States on August 13, 2025
★★★★★ 5
Solid, powerful, rechargeable
Color: Black
Very impressed with its weight, speed and performance. The dial is great
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Reviewed in the United States on May 29, 2026
★★★★★ 4
Very nearly the perfect frother for all your basic frothing & mixing needs
Color: Black
There are a lot of middle-of-the-road frothers out there. I've been through a few of them in my recent search for something that could mix and froth well, without taking up any more outlets in my basement kitchen. Of the three Maestri frothers I've tried so far, this one wins the race by a nose.
Most recently, these Maestri frothers come in basically three versions: A single-speed @ 8000 RPM, a two-speed @8000/5500 RPM, and this stepless variable-speed version. Aside from that, the only real difference in recent version pack-outs is which attachments they come with.
Look over the reviews of the single-speed version and you'll find that while it can and does froth well, it starts at a single, high speed and gets there fast. This makes it pretty easy to spin liquid right out of most common cups and mugs.
There is a two-speed version, but it's harder to find, only comes in one color (Grape Purple), and while it's much better than the Maestri single-speed, it still has a couple of quirks that make this variable-speed version win out.
This mixes and froths whole milk, half-and-half, or heavy whipping cream, or just about anything else very well. Like all frothers, it takes a little time to learn its nuances and nail down the technique, this will definitely get you there.
The best feature of this is easily the speed control. Turn the knob to turn it on at a low speed that's great to get things started, then turn the knob to crank up the speed just enough to do what you need, whether that's mixing or frothing. The low starting speed makes it easy to keep things under control without undue spilling, and the max speed is more than enough to make quick work of getting your froth on.
There are really only two complaints I have with this stepless, variable speed version:
- I'd really like to have a Press On / Release Off button in addition to the Speed Control knob. More than one time have I gone to turn this off, only to spin the knob the wrong way and crank the speed up to ludicrous, sloshing liquid on the counter. Being able to turn it Off just by letting go of the button would be quick and easy. This configuration would allow using a preferred speed right from the start, while still allowing speed to be adjusted on-the-fly when needed.
- Give it a bigger battery. It would cost mere pennies to give this a 2000mAH+ instead of a 1200mAH battery, and I can't think of any reasonable downside to that.
- Give the motor a little more torque. It's fairly easy for the current motor, at any speed, to get bogged down in a thick protein powder mix, or when pressing the frother or other attachment a bit too hard into the bottom or side of the frothing container. A bit more "oomph" would prevent that.
I really like the overall design and features of thes Maestri frothers better than many other, cheaper versions. This variable-speed version is pretty great as it is and probably the one I would recommend over the single- or two-speed, for most people. But I often find myself using two hands -- one to hold it steady, and the other to turn it on and tweak the knob to the desired speed(s) -- for a device that should arguably need only one hand to use. Just a couple of minor tweaks as noted above would make this the overall best frother of its type that I've used.
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Reviewed in the United States on May 23, 2025