Frequently asked questions
About this category
This category covers turbochargers designed for the Mercedes-Benz OM654 M256 381 HP engine, a 3.0-liter inline-six diesel powerplant found in models such as the E-Class, S-Class, and C-Class from 2016 onwards. These turbos are essential for maintaining engine efficiency, power delivery, and emissions compliance, whether for routine maintenance or performance restoration.
The range is built around BorgWarner KKK turbos, selected for their durability and precision engineering in high-performance diesel applications. As a wholesale supplier, we aggregate these units from specialized remanufacturers, ensuring each turbo meets the exacting standards of the OM654 M256 platform without the markup of OEM-branded parts.
Professional uses by trade
Whether you are a professional mechanic, a DIY enthusiast, or a German-speaking customer in the DACH region, this category provides turbos that restore lost power, reduce smoke, and eliminate turbo lag in the OM654 M256 engine.
- Le garagiste independant : Replace a failing turbo on a 2018 Mercedes E 350 d with OM654 M256 to avoid costly OEM part delays and maintain workshop efficiency.
- L'automobiliste depanne : Order a remanufactured turbo for a 2020 Mercedes C 350 d when the original unit shows signs of wear, ensuring a quick return to the road.
- Le passionne qui fait lui-meme : Source a BorgWarner KKK turbo for a personal OM654 M256 project, leveraging wholesale pricing for budget-friendly repairs.
- Der deutsche Kaeufer (DACH) : Finde einen generalüberholten Turbolader für den OM654 M256, der die Leistung und Zuverlässigkeit des Motors ohne Neuteilekosten wiederherstellt.
- Le garagiste independant : Use exchange standard turbos to offer customers a cost-effective alternative to new units, reducing downtime for OM654 M256 repairs.
- L'automobiliste depanne : Choose a remanufactured turbo to address symptoms like excessive smoke or power loss in a 2019 Mercedes S 350 d without compromising on quality.
- Der deutsche Kaeufer (DACH) : Nutze generalüberholte Turbolader für den OM654 M256, um die Originalleistung mit minimalem Aufwand und ohne Werkstattbesuch zu sichern.
Range comparison
Below are the three BorgWarner KKK turbos compatible with the Mercedes-Benz OM654 M256 381 HP engine, listed with their exact reference numbers for precise identification.
| Range | Use | Format |
|---|---|---|
| Turbo BorgWarner - KKK 1273 998 0018 | Direct fit for OM654 M256 in E-Class and S-Class | |
| Turbo BorgWarner - KKK 5303 998 0523 | High-flow option for tuned OM654 M256 applications | |
| Turbo BorgWarner - KKK 5303 998 0522 | Standard replacement for C-Class OM654 M256 |
How to choose
Selecting the right turbo for the OM654 M256 requires attention to compatibility, condition, and intended use, whether for a stock rebuild or performance upgrade.
- Verify the turbo’s reference number matches your vehicle’s OEM specification to ensure seamless installation and optimal performance in the OM654 M256.
- Opt for exchange standard turbos to benefit from remanufactured quality at a fraction of the cost of new units, without compromising on reliability.
- Check the turbo’s condition—generalüberholt units undergo rigorous testing to confirm they meet OEM tolerances for the OM654 M256 engine.
- Consider the turbo’s intended use: standard replacements restore factory performance, while high-flow options may suit tuned OM654 M256 builds.
- Ensure the turbo includes all necessary components, such as the CHRA and variable geometry mechanism, for a complete and functional unit.
- For professional garages, prioritize turbos with consistent rotation and minimal wear to reduce the risk of premature failure in the OM654 M256.
- German-speaking customers should confirm the turbo’s compatibility with their specific OM654 M256 model year and variant before ordering.
Storage & logistics
B2B customers receive exchange standard turbos in sturdy, vibration-resistant packaging designed to protect the CHRA and variable geometry components during transit. Units are stored in climate-controlled facilities to prevent moisture damage, and each turbo is inspected for rotational consistency before dispatch. For bulk orders, palletized shipping ensures safe handling, while smaller quantities are shipped in reinforced cartons with desiccant packs to maintain optimal condition until installation in the OM654 M256 engine.
Since 2026, our team has specialized in sourcing remanufactured turbos for high-performance diesel engines like the OM654 M256, ensuring every unit meets the strict standards our customers demand for reliability and longevity.— autoKUR team
Related categories
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Useful references
For regulatory and sector references, see Reglement (UE) 461/2010 — pieces de rechange et garantie constructeur.



