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- USA
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Mercedes Benz C43 E400 GLC43 GLE400 Engine Exhaust Valve 3.0T V6 M276 2760504000High Quality Car Parts for Your Mercedes Benz Upgrade your Mercedes Benzs performance with our premium replacement pistons. Designed to fit all M276 3. 0L Turbo V6 engines. OEM Part Numbers Positions Other Names Notes Model 276 050 40 00 Engine Head Outlet Valve Mercedes Benz GLE400, GLE450, GLE43, GLC43, E400, E450, C43, GLS450, S450, S550e, S560e, SL400, SL450, SLC43, CLS400, C400, ML400, GL450 & more Compatibility Year Make Model Engine 2023
High-Quality Car Parts for Your Mercedes-Benz
Upgrade your Mercedes-Benz’s performance with our premium replacement pistons. Designed to fit all M276 3.0L Turbo V6 engines.
| OEM Part Numbers | Positions | Other Names | Notes | Model |
|---|---|---|---|---|
| 276-050-40-00 | Engine Head | Outlet Valve | Mercedes-Benz GLE400, GLE450, GLE43, GLC43, E400, E450, C43, GLS450, S450, S550e, S560e, SL400, SL450, SLC43, CLS400, C400, ML400, GL450 & more |
Compatibility
| Year | Make | Model | Engine |
|---|---|---|---|
| 2023 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2023 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2022 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2022 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2021 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2021 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2020 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2020 | Mercedes-Benz | E 450 | 3.0L V6 - Gas |
| 2020 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2020 | Mercedes-Benz | S 450 | 3.0L V6 - Gas |
| 2020 | Mercedes-Benz | S 560e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2020 | Mercedes-Benz | SL 450 | 3.0L V6 - Gas |
| 2020 | Mercedes-Benz | SLC 43 AMG® | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | E 450 | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | GLE 400 | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | GLE 43 AMG® | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | GLS 450 | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | S 450 | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | S 560e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2019 | Mercedes-Benz | SL 450 | 3.0L V6 - Gas |
| 2019 | Mercedes-Benz | SLC 43 AMG® | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | E 400 | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | E 43 AMG® | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | GLE 43 AMG® | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | GLE 550e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2018 | Mercedes-Benz | GLS 450 | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | S 450 | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | SL 450 | 3.0L V6 - Gas |
| 2018 | Mercedes-Benz | SLC 43 AMG® | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | C 43 AMG® | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | E 400 | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | E 43 AMG® | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | GLC 43 AMG® | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | GLE 400 | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | GLE 43 AMG® | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | GLE 550e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2017 | Mercedes-Benz | GLS 450 | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | S 550e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2017 | Mercedes-Benz | SL 450 | 3.0L V6 - Gas |
| 2017 | Mercedes-Benz | SLC 43 AMG® | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | C 450 AMG® | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | CLS 400 | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | E 400 | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | GL 450 | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | GLE 400 | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | GLE 450 AMG® | 3.0L V6 - Gas |
| 2016 | Mercedes-Benz | GLE 550e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2016 | Mercedes-Benz | S 550e | 3.0L V6 - Electric/Gas / PLUG-IN HYBRID EV-GAS (PHEV) |
| 2016 | Mercedes-Benz | SL 400 | 3.0L V6 - Gas |
| 2015 | Mercedes-Benz | C 400 | 3.0L V6 - Gas |
| 2015 | Mercedes-Benz | CLS 400 | 3.0L V6 - Gas |
| 2015 | Mercedes-Benz | E 400 | 3.0L V6 - Gas |
| 2015 | Mercedes-Benz | GL 450 | 3.0L V6 - Gas |
| 2015 | Mercedes-Benz | ML 400 | 3.0L V6 - Gas |
| 2015 | Mercedes-Benz | S 550e | 3.0L V6 - Electric/Gas |
| 2015 | Mercedes-Benz | SL 400 | 3.0L V6 - 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
4.9 ★★★★★
Based on 349 reviews
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Product Reviews
★★★★★ 5
Kori 24 in Computer Monitor full HD
Size: 24, Size: 24
I live the Quality of this monitor for the price it was so easy to setup She’s up . The quality is everything the box included all cables that connect except of course HDMI but that’s not included. The picture quality and connectivity is amazing I have not complaints. I love that there are enough ports to add additional devices and screen adjustable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
★★★★★ 5
Vivid color and a wonderful audio sound!
Size: 24
Wow. With this price, the color quality of this monitor is amazing. Most surprising part is the speaker! The sound is so nice! My son use it to link his Chromebook to goto YouTube and enjoy to classic music played by Berlin philharmonic, wow!!! This is really a wonderful monitor!! Really a great product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Nice monitor great value
Size: 24
I liked this so much I got 2. Nice size for a monitor, looks good, works good. No sound, camera or mic, so I bought a speaker and camera on Amazon too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
★★★★★ 5
A quality product
Size: 22
great picture quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
★★★★★ 5
Koorui 34E6UC (34" 3440×1440, 180 Hz, 1000R curved VA panel) — But Missing Info Buyers Should Know
Size: 34"/WQHD/1000R/HDR400
Review:
I purchased two of the Koorui 34‑inch curved ultrawide monitors for a dual‑monitor setup, and so far I’m very pleased with them. The picture quality is sharp, the brightness is solid, and the “Normal” color preset looks natural without any adjustments. For the price, these 34‑inch panels deliver very good performance.
That said, there are a few important details the product listing and reviews don’t mention — and knowing them ahead of time would have saved me some stress during installation.
1. YES, the 34‑inch model DOES include stand‑offs (spacers)
This is not mentioned anywhere in the listing, and even Amazon’s Rufus incorrectly says they are *not* included. They actually come in the small accessory packet with the manual.
If you’re mounting these monitors, you will need those stand‑offs because of the recessed VESA pattern. They are already in the box — just not advertised. I rushed to order a separate spacer kit because the listing didn’t mention it, so I’m putting this here to help the next person avoid that.
2. One of my monitors flashed briefly until I disabled FreeSync
On one of the two monitors, I noticed a quick bright “flash” when moving the mouse. Turning off Adaptive Sync / FreeSync in the monitor’s menu fixed it instantly. The other monitor didn’t have this issue, so it seems to vary by panel.
Not a defect — just something to be aware of if you see flicker or brightness pops.
3. Color and brightness match well once set manually
After setting both monitors to the same brightness, contrast, and color mode, they match very well side‑by‑side. The “Normal” color preset looks the most accurate on these VA panels.
4. Build quality and packaging are solid
Both monitors arrived well‑protected, and the included cables work fine. The stand is basic, but I’m using monitor arms, so that wasn’t a factor for me.
5. Too early to comment on long‑term support or durability
I’ve only had these monitors set up for a few hours, so I can’t speak yet to long‑term reliability or how responsive Koorui’s support is. I’ll update this review if anything changes over time.
Bottom line:
These 34‑inch Koorui ultrawides are excellent for the price, especially for gaming or a dual‑monitor setup. Just be aware that:
- Stand‑offs ARE included (despite the listing not saying so)
- FreeSync may need to be turned off on some units
- Picture quality is great once you match settings manually
- Long‑term support is still unknown
If the listing had mentioned the included spacers, it would have saved me a last‑minute order — so I hope this review helps the next person.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 12, 2026
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