This 722.6 Piston Kit is a premium auto gearbox part for Mercedes‑Benz 5‑speed automatic transmissions (722.6 / NAG1). Made with high‑strength bonded pistons and precision seals, it fixes common issues like shift shock, pressure loss, and clutch slip. Direct OE‑style fit for C‑Class, E‑Class, S‑Class, CLK, ML, and other models. Ensures smooth engagement, stable oil pressure, and long‑term durability. Ideal for transmission rebuilds and professional repairs, delivering reliable performance and reduced downtime.
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Brand
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Model
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Year
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Transmission
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Drive
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Engine
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Mercedes-Benz
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C-Class (W203/W204)
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1999-2014
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722.6 / NAG1 5-Speed Automatic
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RWD (Rear-Wheel Drive)/4MATIC (AWD)
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2.0L/2.2L/3.0L/3.5L Petrol/Diesel
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Mercedes-Benz
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E-Class (W211/W212)
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2002-2016
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722.6 / NAG1 5-Speed Automatic
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RWD (Rear-Wheel Drive)/4MATIC (AWD)
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2.1L/3.0L/3.5L/5.5L Petrol/Diesel
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Mercedes-Benz
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S-Class (W220/W221)
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1998-2013
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722.6 / NAG1 5-Speed Automatic
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RWD (Rear-Wheel Drive)/4MATIC (AWD)
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3.2L/4.3L/5.0L/5.5L Petrol/Diesel
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Mercedes-Benz
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CLK-Class (W209)
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2002-2010
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722.6 / NAG1 5-Speed Automatic
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RWD (Rear-Wheel Drive)
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2.0L/3.0L/3.5L/5.0L Petrol
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Mercedes-Benz
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ML-Class (W164)
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2005-2011
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722.6 / NAG1 5-Speed Automatic
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4MATIC (AWD)
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3.0L/3.5L/5.0L/6.3L Petrol/Diesel
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Mercedes-Benz
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GL-Class (X164)
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2006-2012
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722.6 / NAG1 5-Speed Automatic
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4MATIC (AWD)
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3.0L/4.7L/5.5L Petrol/Diesel
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Is this piston kit compatible with all Mercedes 722.6 transmissions?
This 722.6 piston kit fits most Mercedes‑Benz 5‑speed 722.6 / NAG1 transmissions, including C‑Class, E‑Class, S‑Class, CLK, ML, GL and other models from 1998–2016. It matches OEM specifications for RWD and 4MATIC versions. Always verify your transmission code and vehicle year/model before purchase to ensure correct fitment for your engine and drivetrain configuration.
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Q1. Are you a factory or a trading company?
We are an integrated manufacturing and trading supplier with 22 years of experience in the automotive transmission industry.
Q2. How can we buy suitable transmission parts?
We can provide you with suitable transmission parts based on your transmission model and VIN frame number.
Q3. Do you offer sample services?
Yes, we are happy for you to choose our products to test the product quality and service. However, the express delivery fee shall be borne by you. If you are satisfied with our samples and place an order, we will deduct the sample fee you paid from your order.
Q4. Does your company provide customization services?
Yes. We can customize product labels and packaging according to your requirements.
Q5. What is your delivery date?
Under normal circumstances, the delivery date is about 5-15 working days after receiving payment.
Q6. What about your after-sales service?
All our products have a one-year warranty period, and we can provide spare parts needed for after-sales service.
Q7. Can I visit your factory?
Of course, you are welcome at any time. We can also arrange pickup services from the airport or railway station.