09D Shift Kit, new and ready to install. Fits the 09D. Ships fast from the USA.
A 09D that drops out of fifth or sixth once it is hot, slams on downshifts, or shudders on the highway is often blamed on the whole transmission when the real problem is wear inside the valve body. The TransGo SK 09D is the repair kit that rebuilds those worn circuits in your original valve body, for the six-speed in the VW Touareg and Porsche Cayenne. TransGo pitches it plainly: there is no need to buy a 1,200 dollar valve body to fix these complaints.
Aisin builds the 09D, also called the TR-60SN, as a rear-drive unit for luxury SUVs; it is closely related to the front-drive 09G but built for more torque. Shift timing and clutch pressure come entirely from linear solenoids, and the valves they control slide in aluminum bores. Sonnax's tech notes on this unit point to three common wear areas: the solenoid modulator bore, which causes harsh downshifts and falling out of fifth or sixth when hot; the clutch control bores, which cause flared upshifts; and the pressure regulator and lockup control bores, which cause line rise and converter clutch problems. The SK 09D replaces the pressure regulator boost valve and bushing, both solenoid regulator valves and the TCC boost valve and bushing, so the critical feeds are back in spec.
Sonnax notes that debris commonly makes the solenoid plungers seize in their coil bushings once the unit reaches operating temperature, which gives erratic hot shifts that look like a valve body failure. Test the solenoids before blaming bores: 5 to 7 ohms between the pins and no continuity from either pin to the solenoid body, as described in our solenoid testing guide. When the valve body comes out, inspect it using the steps in our valve body cleaning and inspection guide. A body with cracked castings or badly scored bores beyond what the kit covers is a candidate for a complete replacement 09D valve body instead.
This TransGo kit fits the 09D / AW TR-60SN six-speed from 2002 on with 1.100 inch outside diameter solenoid cans, and TransGo's instructions name the 2004-2007 VW Touareg and 2003-2007 Porsche Cayenne. The 09D was also used in the Audi Q7, so if yours is a Q7 or a later Touareg, measure a solenoid can and match it before ordering, or send us your year and VIN. The kit is the same TransGo part as our year-tagged 09D shift kit 2002-on listing. See all parts for the platform on our Aisin transmission parts page.
This is valve body work, not a drop-in spring swap. Plan on the following:
Replace any solenoid that fails testing from a 09D solenoid kit, and inspect the internal harness and connectors while the pan is down; brittle connectors are common, and a new 09D internal wiring harness is cheap insurance. Refill with the VW-specified ATF, set the level hot by the factory procedure, reset adaptations and road test.
| Fits | 09D |
| Part type | Shift Kit |
| Condition | New |
| Brand | TransGo |
| Ships | From the USA |
| Warranty | 1-year |
Sonnax links that complaint to solenoid modulator bore wear and to solenoid plungers sticking when hot. The SK 09D addresses the regulator feeds and rebuilds the solenoids, so it targets exactly that complaint, provided the clutches are still healthy.
The Q7 uses the 09D, but TransGo's instructions list the Touareg and Cayenne by name. The deciding factor is the 1.100 inch solenoid can outside diameter, so measure yours or send us your VIN before ordering.
No. TransGo states the enlarged holes are solenoid-to-valve signal circuits, sized to compensate for normal wear, not clutch feed holes for firmer shifts.
Yes. The valve body comes out from below with the transmission in the vehicle, but you need a bench grinder, a micrometer and careful organization for the solenoid work.
Use the ATF specified by VW or Porsche for your vehicle, set the level hot with the factory overflow check, then clear adaptations with a capable scan tool and drive through every gear.
