09D Clutch Drum 2002, used and ready to install. Fits the 09D. Ships fast from the USA.
If your VW Touareg, Porsche Cayenne or Audi Q7 with the Aisin 09D six-speed has started flaring on the 3-4 shift, dropping to neutral going into 4th, or slipping in 5th and 6th once it is hot, the K2 clutch circuit is one of the first places to look. This is a used 09D (Aisin TR-60SN) K2 clutch drum with the shaft attached, built for the 5-clutch pack, from the 2002-up design. It is catalogued under interchange number 235554A, and some catalogs label it the forward drum. It is a direct replacement when the original drum is cracked, ring-grooved or has a damaged spline.
The 09D is the rear-wheel-drive version of the front-drive 09G/TF-60SN, and Transmission Digest notes it uses the same clutch elements: three rotating clutches (K1, K2, K3) and two brakes (B1, B2). In this Aisin six-speed family the K2 clutch is applied in 4th, 5th and 6th. The drum holds the K2 steel and friction plates and the apply piston, and because the shaft is part of this assembly it also carries feed oil to the piston through its sealing ring lands. Each clutch has its own linear solenoid, pulsed off to apply, so the computer controls K2 apply and release directly. When the drum leaks or the pack slips, the solenoid has nothing to grip with and the computer sees a ratio error.
The same complaints can come from valve body wear. Sonnax lists worn clutch control valve bores and solenoid modulator bores on the 09D as common causes of flare upshifts, harsh downshifts and falling out of 5th or 6th when hot, so do not condemn the drum until the hydraulics are checked.
The 09D has a pressure tap for every clutch, which makes this easier than most units. Put a gauge on the K2 tap and compare apply pressure in 4th, 5th and 6th with line pressure. Good pressure with a slip means the pack or drum is leaking or worn; low pressure points back to the valve body or solenoid. Our transmission pressure testing guide covers the gauge setup, and Aisin harsh or delayed shifts walks through separating hydraulic faults from clutch faults. On the bench, air-check the K2 piston through its feed and look at the shaft ring lands under good light.
This drum fits the 09D/TR-60SN from 2002 on. The North American applications are the VW Touareg and Porsche Cayenne, and the interchange list also includes the Audi Q7 and some overseas Toyota models built with the same Aisin unit. The 09D went through internal updates, so compare your old drum before you order: count the clutch plates (this is the 5-clutch version), check the spline and shaft length, and compare casting numbers with the photos. If you are unsure, send us your year, make, model and engine and we will check it. See every 09D and Aisin part on our Aisin transmission page.
This drum is used, cleaned and ready to build into your unit, and it ships fast from the USA.
| Fits | 09D 2002 |
| Part type | Clutch Drum |
| Condition | Used |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
It is the K2 drum with the shaft attached, for the 5-clutch pack. K2 is the clutch applied in 4th, 5th and 6th. Some catalogs call this part the forward drum, so go by the K2 description and the photos when you compare.
It is listed for the 09D/TR-60SN from 2002 on, which covers the VW Touareg, Porsche Cayenne and Audi Q7 that use that transmission. Confirm your vehicle has the 09D, then match the clutch count, spline and shaft length to your old drum. Send us year, make, model and engine if you want us to check.
Plan on new K2 frictions, steels, piston seals and shaft sealing rings. A used drum is sold as the drum and shaft assembly; fresh friction material and seals are what make the repair last.
Yes. Sonnax ties 09D flare upshifts and harsh downshifts to worn clutch control valve bores. Check K2 apply pressure at its tap first; if pressure is good and it still slips, the drum and pack are the problem.
Yes. The computer has learned fill times for the old, worn pack. Reset the adaptations and drive through every shift at light throttle until the shifts settle.
