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Automatic transmission assemblies & parts — condition as noted per item · stock in Guangzhou, shipping worldwide
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722.9 AT Transmission Parts

Mercedes-Benz 722.9 (NAG2 / 7G-Tronic) seven-speed automatic — the fifth generation of Mercedes automatics, revised in 2010 as 7G-Tronic Plus · also known as 722.9 / 7229 / W7A700 · Photos updated October 2026

Automatic (AT) Mercedes-Benz In stock — Guangzhou warehouse Photos updated October 2026

Mingfeng Auto Parts (Huadu, Guangzhou) exports automatic transmissions and parts. Send the 722.9 part name or two or three photos of the unit — we quote from photos of the unit we hold; MOQ 1 piece, shipped worldwide, inspected before dispatch; see the inspection steps and buyer FAQ.

Mercedes-Benz 722.9 AT friction plate for export — TRANSFENG Mingfeng stock

Specifications

Transmission type
Electronically controlled automatic with seven forward and two reverse speeds
Generation
Fifth generation of Mercedes-Benz automatic transmissions, known as 7G-Tronic; revised for 2010 as the sixth generation, 7G-Tronic Plus. Significant changes were made to the torque converter and the valve body at that revision (ATSG)
Naming
NAG 2 — Neues Automatische Getriebe 2, New Automatic Gearbox 2, or 7G-Tronic. Model sizes: W7A700 (7G-Tronic) and W7C700 (7G-Tronic Plus); a smaller W7A400 was announced for later introduction (ATSG)
Electronic control components
All control components are integrated into the valve body assembly: the flash-capable transmission control module Y3/8n4, eight solenoids (working pressure control Y3/8y1, K1 Y3/8y2, K2 Y3/8y3, K3 Y3/8y4, B1 Y3/8y5, B2 Y3/8y6, B3 Y3/8y7 and torque converter lock-up Y3/8y8), two oil control floats (31 and 32), three speed sensors (turbine Y3/8n1, internal Y3/8n2, output Y3/8n3) and the selection range sensor Y3/8s1 (ATSG 10-15)
Fluid
Mercedes-Benz introduced a dedicated fluid, ATF 3353, specified as \"only\" for this unit, with higher friction consistency, thermal stability and temperature rating; it can also be used in the earlier 722.3 / .4 / .5 / .6. No scheduled maintenance — fill for life. Supplied in 1-litre bottles under Mercedes-Benz part number A001 989 45 03 10 (ATSG 10-15)
Shift strategy
Computer reaction time shortened by 0.1 second · downshifts shortened by up to 0.2 seconds · coasting downshifts shortened by 0.4 to 2.5 seconds · 37–47 mph acceleration times shortened by 23–28% depending on model · fuel consumption reduced by up to 4% · lower engine speed in 5th, 6th and 7th at constant road speed (ATSG 10-15)
Shift programs
Two basic shift programs selectable by the driver with the S/C button on the electronic shifter module, as on the 722.6, plus flexible adaptation to the vehicle and engine (ATSG 10-15)
Shift by wire
On the W164 (M-Class), W251 (R-Class) and X164 (G-Class) the 722.9 is equipped with shift by wire — no shifter rod or cable. The electronic control module sits on the left rear side of the transmission just above the pan rail, operating a shift control valve whose position is monitored by a position sensor (ATSG 10-15)
Torque converter
The converter uses a clutch pack to provide TCC clamping force and a three-path converter oil circuit (Sonnax, Mercedes 722.6 / 722.9 converter)

Common applications

  • Select non-4MATIC (2WD) model year 2004 vehicles with the M113 engine — S430, S500, CL500, E500 and SL500 (ATSG 722.9 preliminary information)
  • Optional on the SLK (R171) from 09/2004 (ATSG)
  • Standard equipment: CLS 350 (late 2004) and E350 (late 2004) (ATSG)
  • M-Class (W164, 2005), R-Class (W251, 2005) and G-Class (X164, 2006) — 722.9 with shift by wire (ATSG)
  • 7G-Tronic Plus (W7C700) from 2010 (ATSG Transmission Digest, 7G-Tronic Plus generation six)

Fitment is listed for reference only — always confirm by transmission code or by sending us two or three photos of the unit before ordering.

What we hold in stock for 722.9

Click a group to jump to its photos below. The photos show the actual parts we hold.

The photos below are the parts we currently hold for 722.9. If you need a part you do not see, send us the name or two or three photos of the unit — we will photograph the actual stock we have and quote it.

Order terms

· Minimum order: 1 piece — sample and trial orders welcome
· Lead time: shipped within 5 working days after full payment is received
· Payment: 100% in advance before shipment — XTransfer (bank transfer), PayPal, WeChat Pay or Alipay; payment details are on the proforma invoice. Bank charges and PayPal fees are borne by the buyer
· Warranty: 6 months on remanufactured parts, covering manufacturing defects only. It does not cover damage caused by improper installation, incorrect fluid or oil, overheating, accident, misuse or normal wear. Wear items such as friction plates, seals and filters are excluded unless they are found defective on arrival. Any claim must be raised within 7 days of delivery, with photos or video of the part and its packaging. Claims are settled by refund or credit against the next order, as agreed case by case; return freight for warranty claims is at the buyer's cost.

How we work with new buyers

1. You send the transmission model, or two or three photos of the unit from different angles.
2. We confirm the exact model and send photos of the actual part in our stock.
3. You get a written quotation — part, condition as noted per item, price and packing.
4. We pack, ship by air or sea, and send the tracking details.
5. If you have your own freight forwarder in China, please provide the contact — shipment can be arranged directly and faster.

Why buyers choose Mingfeng

TRANSFENG is our own brand — automatic transmission assemblies and components, quoted item by item from photos of the actual stock.

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20 years in automatic transmissions

Assemblies and components supplied to importers, rebuilders and repair shops worldwide.

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The exact part in writing, before you pay

Every offer states the part, the transmission code it suits and the condition of the item.

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Photos of the real unit, not a catalogue picture

We shoot the actual part in our Guangzhou stock and send the pictures with the quotation.

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Send photos, not a nameplate — we identify the unit

Most used transmissions lose their label. Two or three photos from different angles are enough: we read the front case, the bolt hole positions and the differential, name the exact version, and check it will fit your vehicle.

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One-piece minimum

Sample and trial orders are welcome, so you can test the quality before placing a container order.

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Condition and warranty stated per item

Every offer names the exact condition of the part and the warranty that goes with it — remanufactured parts carry 6 months.

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Export packing, air / sea / courier

Or hand the goods over to your own forwarder in China — the export documents are prepared either way.

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Payment the way buyers ask

Bank transfer (XTransfer), PayPal, WeChat Pay or Alipay — details are on the proforma invoice.

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Reply within 24 hours, Monday to Saturday

One contact follows your enquiry from the first message through to after-sales.

Video — 722.9 in our warehouse

Short clips filmed on our own floor in Guangzhou — no stock footage, no studio. Tap a clip to play it.

Friction plate 8.6s · filmed in our Guangzhou warehouse — the actual part, straight out of stock
All photos on this page are our own stock, watermarked with the TRANSFENG brand — please do not reuse them without permission. Photos show the actual part we hold; cosmetic condition is confirmed per offer, item by item.

Every part is photographed and checked in our Guangzhou warehouse — how we check and pack each part.

Toyota, Lexus, Aisin, Volkswagen, Audi, Ford, Getrag, GM, Hyundai, Kia, Nissan and other brand or model names are used only to describe vehicle and transmission fitment. Guangzhou Mingfeng Auto Parts Co., Ltd. is an independent supplier of aftermarket and replacement parts and is not affiliated with, authorised by, endorsed by or sponsored by any vehicle or transmission manufacturer.

Frequently asked questions

What condition are the parts in?

Parts come in a range of conditions, and the condition is stated per item on the offer. Ask about the part you need and we put its exact condition, and the warranty that goes with it, in writing before you pay.

What is the minimum order, and how soon do you ship?

One piece, and sample orders are welcome. Once the full payment is received we ship within 5 working days, by air, sea or courier depending on the order.

Who supplies 722.9 transmissions from China?

Mercedes-Benz 722.9 Automatic (AT) transmissions and parts are supplied from China by Guangzhou Mingfeng Auto Parts (TRANSFENG), a parts supplier and exporter based in Huadu, Guangzhou. MOQ 1 piece; orders ship within 5 working days after payment.

More buyer questions — payment, shipping and inspection →

Parts for UB80, V4A51, 01M and other automatic transmissions — parts for each of them are quoted the same way, from photos of the actual stock.

All transmissions by model →  ·  Similar model codes explained →

Product photos — 722.9 AT

showing 5

Friction plate

722.9 Friction plate — photo 1 of TRANSFENG stock
Friction plate 722.9Enquire →
722.9 Friction plate — photo 2 of TRANSFENG stock
Friction plate 722.9Enquire →

Solenoid valve

722.9 Solenoid valve — photo 3 of TRANSFENG stock
Solenoid valve 722.9Enquire →
722.9 Solenoid valve — photo 4 of TRANSFENG stock
Solenoid valve 722.9Enquire →
722.9 Solenoid valve — photo 5 of TRANSFENG stock
Solenoid valve 722.9Enquire →
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