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Description
Mercedes Benz S550 E550 GL550 Engine Exhaust Valve 4.7L V8 Turbo M278 2780500427High Quality Car Parts for Your Mercedes Benz Upgrade your Mercedes Benzs performance with our premium replacement pistons. Designed to fit all M278 4. 7L Turbo V8 engines. OEM Part Numbers Positions Other Names Notes Model 278 050 04 27 Engine Head Outlet Valve Mercedes Benz S550, E550, GL550, CLS550, SL550 & more Compatibility Year Make Model Engine 2020 Mercedes Benz SL 550 4. 7L V8 Gas 2019 Mercedes Benz GLS 550 4. 7L V8 Gas 2019 Mercedes Benz SL
High-Quality Car Parts for Your Mercedes-Benz
Upgrade your Mercedes-Benz’s performance with our premium replacement pistons. Designed to fit all M278 4.7L Turbo V8 engines.
| OEM Part Numbers | Positions | Other Names | Notes | Model |
|---|---|---|---|---|
| 278-050-04-27 | Engine Head | Outlet Valve | Mercedes-Benz S550, E550, GL550, CLS550, SL550 & more |
Compatibility
| Year | Make | Model | Engine |
|---|---|---|---|
| 2020 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2019 | Mercedes-Benz | GLS 550 | 4.7L V8 - Gas |
| 2019 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2018 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2018 | Mercedes-Benz | GLS 550 | 4.7L V8 - Gas |
| 2018 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2017 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2017 | Mercedes-Benz | E 550 | 4.7L V8 - Gas |
| 2017 | Mercedes-Benz | GLS 550 | 4.7L V8 - Gas |
| 2017 | Mercedes-Benz | Maybach S 550 | 4.7L V8 - Gas |
| 2017 | Mercedes-Benz | S 550 | 4.7L V8 - Gas |
| 2017 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2016 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2016 | Mercedes-Benz | E 550 | 4.7L V8 - Gas |
| 2016 | Mercedes-Benz | GL 550 | 4.7L V8 - Gas |
| 2016 | Mercedes-Benz | S 550 | 4.7L V8 - Gas |
| 2016 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2015 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2015 | Mercedes-Benz | E 550 | 4.7L V8 - Gas |
| 2015 | Mercedes-Benz | GL 550 | 4.7L V8 - Gas |
| 2015 | Mercedes-Benz | S 550 | 4.7L V8 - Gas |
| 2015 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | CL 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | E 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | GL 450 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | GL 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | ML 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | S 550 | 4.7L V8 - Gas |
| 2014 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | CL 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | E 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | GL 450 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | GL 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | ML 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | S 550 | 4.7L V8 - Gas |
| 2013 | Mercedes-Benz | SL 550 | 4.7L V8 - Gas |
| 2012 | Mercedes-Benz | CL 550 | 4.7L V8 - Gas |
| 2012 | Mercedes-Benz | CLS 550 | 4.7L V8 - Gas |
| 2012 | Mercedes-Benz | E 550 | 4.7L V8 - Gas |
| 2012 | Mercedes-Benz | ML 550 | 4.7L V8 - Gas |
| 2012 | Mercedes-Benz | S 550 | 4.7L V8 - Gas |
| 2011 | Mercedes-Benz | CL 550 | 4.7L V8 - Gas |
Enhance your driving experience with our high-performance Mercedes-Benz M278 pistons. Order now for reliability and precision you can trust.
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
4.2 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Great for Sun Allergy Rashes!
Scent: Unscented, Scent: Unscented
I have an autoimmune disease called Sjogren’s Disease. With that, for me, comes a sensitivity to the sun in the form of sun allergy rashes. Also with that, I did a deep dive on the best sunscreens and read a lot of reviews on here. I put some of the outer sides of elbows where my sun allergy rashes were when I received it. There was slight sting, but the skin there was already slightly broken. I really love the texture of it, how it feels on my skin and that there's no white cast. It’s moisturizing, too, with no greasiness. Absorbed really well.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
The best mineral sunscreen
Scent: Unscented
I’m so impressed by this sunscreen! I’ve been using mineral sunscreens for years and this blows every other one I’ve tried out of the water. It is silky smooth and applies so easily, absorbs well and doesn’t feel greasy or heavy. It doesn’t leave a white cast but it still protects very well! Of course like any sunscreen it’s only as effective as your usage, so reapplying is paramount. The unscented truly has no smell to it, which is something I appreciate. Using it for the first time, neither myself or my fair kiddos got sunburnt. It’s just all around a fantastic, clean mineral sunscreen and will be my go to from now on!
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Wellness Staple for Sensitive Skin
Scent: Pear & Coconut Water, Scent: Pear & Coconut Water
I’m becoming much more intentional about the products I use on and around my body, especially while traveling, and this sunscreen ended up being one of the best things we packed for our girls trip to Mexico. My friend has extremely sensitive skin and typically reacts to a lot of sunscreens, so we wanted something mineral-based, reef safe, and more wellness-conscious overall.
We split one bottle between the two of us over about five days, and honestly it held up really well. It felt lightweight for a mineral sunscreen, blended in better than expected, and didn’t leave our skin feeling greasy or irritated in the heat. Most importantly, neither of us experienced sensitivity issues or breakouts during the trip.
I also appreciated the peace of mind of using something reef safe while spending so much time in the ocean. It’s one of those products that aligns well with a more mindful, health-focused lifestyle without sacrificing effectiveness.
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Love the scent
Scent: Tropical Breeze
This sunscreen has such a great scent and is easy to apply with no white cast. Skin doesn't feel clogged or sweaty. Easy to apply and distribute.
Like that it's a zinc oxide sunscreen that is doesn't leave a white cast and has a wonderful tropical scent. Wish it came in SPF 50 or higher.
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Reviewed in the United States on May 28, 2026
★★★★★ 4
ACTUALLY unscented! Finally!
Scent: Unscented
I have been on a personal mission to find a truly unscented sunscreen, as I have extremely sensitive skin and medical conditions that cause me to have skin reactions to fragrance. I have tested out 10+ different sunscreens and even in those that do not list a fragrance, can still have a strong smell or scent due to one or more of their ingredients. This sunscreen truly is UNSCENTED. I was even able to use it on my face today, which until now I have been able to do successfully with only one other sunscreen.
I have yet to try out this sunscreen in direct sunlight for a prolonged period of time, so I cannot speak for how effective the SPF 30 is for activities out in the sun, but I was able to comfortably wear it for walking my dog for 20 or so minutes while wearing a sun hat, which is normal use for me when it comes to sunscreen.
I will come back and update this review if anything changes as far as sun sensitivity or if any burning takes place.
Now for the cons: it felt a bit heavy or "stifley" on my face, but I have sensory processing issues so I'm sensitive, and there was pilling on my face hours later.
So far I would recommend this sunscreen and am stoked to have discovered it. It is my current go-to for my body sunscreen, and haruhara wonder black rice SPF 50 velvet finish sunscreen is my go-to for face sunscreen
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Reviewed in the United States on March 2, 2026