09D Valve Body, remanufactured and ready to install. Fits the 09D. Ships fast from the USA.
If your VW Touareg, Porsche Cayenne or Audi Q7 has the Aisin 09D six-speed automatic and it slams into lower gears as you slow down, drops out of 5th or 6th once it is fully warm, or flares on the way up through the gears, you are looking at the most common wear point in this transmission: the valve body. This remanufactured 09D valve body replaces the whole hydraulic control assembly, so the worn bores that cause those complaints are gone in one install instead of being chased one valve at a time.
The 09D is the VW designation for the Aisin AW TR-60SN, the rear-wheel-drive, longitudinal cousin of the front-drive 09G. Aisin built it with extra torque capacity for the V6 and V8 SUVs it went into. Inside, every clutch is applied and released by its own linear solenoid, and those solenoids are pulse-width modulated rather than simply switched on and off, which is how the control module shapes each shift according to engine torque, transmission rpm and fluid temperature. The valve body is the aluminum casting that turns those electrical commands into clutch pressure. It also houses the solenoid modulator valve, which regulates the feed oil every linear solenoid works from, plus the primary and secondary pressure regulators and the lockup clutch control valve for the converter.
The transmission talks to the outside world through two pass-through case connectors: the larger one carries the solenoid circuits, and the smaller one handles the speed sensors and pressure switches. That matters when you diagnose it, because a connector or harness fault can mimic a valve body failure.
Sonnax's tech notes on this unit tie the complaints to specific bores: solenoid modulator wear for the harsh downshifts and lost 5th/6th when hot, clutch control valve wear for flares, and pressure regulator wear for line-rise and converter clutch problems. Before you replace anything, check the fluid and pan. Dark, burnt fluid with clutch material says the unit is past a valve body fix. Clean fluid with no heavy debris plus a solenoid or pressure fault points here. Also rule out a sticking solenoid, since debris can seize a solenoid plunger in its coil bushing once the unit reaches operating temperature. Our Aisin harsh and delayed shift walkthrough lays out the order of tests, and the solenoid multimeter guide covers the electrical checks.
This listing is for the 09D/TR-60SN six-speed and is not tied to a single model year. The 09D went into the Touareg, Cayenne and Q7, and Aisin also built TR-60SN versions for some Toyota and Lexus trucks, but those carry different calibrations and are not covered here. The 09D and 09G share operating principles, yet most valve body parts do not interchange between them, so a 09G unit will not work. Read the transmission code on your case tag, or send us your year and VIN and we will confirm the match. If you want a listing pinned to a specific span, compare our 2002-2011 09D valve body and the 09D valve body with solenoids installed, or browse every Aisin transmission part we carry.
Drain the pan and replace the filter and pan gasket when the valve body goes in, so contamination from the failed unit is not pumped through the new bores. Our TR-60SN filter and pan gasket kit is built for this job. Inspect both case connectors and the internal harness while the pan is off; a cracked 09D internal wiring harness causes intermittent solenoid codes that will survive a valve body swap. Torque the valve body bolts in sequence to factory spec, refill with the VW/Audi-approved ATF for your transmission and set the level at the specified temperature through the fill plug. Finally, reset and relearn the shift adaptations with a VAG-capable scan tool, as covered in our adaptive relearn guide.
| Fits | 09D |
| Part type | Valve Body |
| Condition | Remanufactured |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
The 09D (Aisin TR-60SN) six-speed was used in the VW Touareg, Porsche Cayenne and Audi Q7. Check the transmission code on the case tag or send us your VIN to confirm before ordering.
No. The two share operating principles, but the 09D is a rear-wheel-drive, higher-torque design and most valve body parts do not interchange with the front-drive 09G.
Worn solenoid modulator valve bores and solenoid plungers that stick in their coil bushings at operating temperature both cause hot-only harsh downshifts and lost 5th or 6th gear. A worn valve body is the usual cause once the fluid checks clean.
Replace the filter and pan gasket, refill with the VW/Audi-approved ATF and inspect the internal wiring harness and case connectors while the pan is off.
Yes. The 09D adapts each clutch apply, so reset the adaptations with a VAG-capable scan tool and complete a relearn drive or shifts may feel firm or soft until it adapts.
