AF40 Overhaul Kit 2005-12, new and ready to install. Fits the AF40. Ships fast from the USA.
A Volvo XC90, S80, XC70 or XC60, a Saab 9-3, or a 2011-up Buick Regal 2.0L with the Aisin six-speed front-drive automatic that weeps fluid at the axle seals, sits for a second before it takes Drive on a cold morning, or slurs its upshifts once it is hot is usually losing apply pressure through tired rubber and paper long before the clutches are finished. This listing is a new Precision International K79900GAX overhaul kit for the TF-80SC, the transmission GM and Saab call the AF40, marked for 2005-12 units. It is the sealing side of a rebuild: everything that keeps oil where the valve body sends it.
The TF-80SC gets six ratios from three planetary sets, three clutches and two brakes, and every shift is a handoff: one element releases while the next one fills and applies. Linear solenoids in the valve body meter that pressure, and the control unit times each fill to the millisecond. None of that works if the piston seals, the rotating sealing rings on the shafts and drums, or the gaskets between the pump, case and valve body let oil escape. As the rubber hardens with heat, the fill takes longer, the control unit adds pressure to compensate, and eventually it runs out of adjustment and you feel a flare or a bang. This kit renews that whole layer. The manufacturer describes it as paper gaskets, rubber O-rings, lip seals and metal-clad seals, and sealing ring sets. It is built without pistons, and it does not include friction plates, steel plates or a filter.
Pull the pan first. Clean red fluid and a clean magnet with a shift complaint point toward sealing or the valve body. Black fluid with friction paste on the magnet means a clutch pack has burned and a seal kit alone will not fix it; in that case the TF-80SC master rebuild kit with frictions and steels is the better buy. Sonnax documents bore wear at the solenoid modulator valve in the TF-80SC and TF-81SC that lowers solenoid feed pressure, so check the valve body before you commit to a teardown. Our Aisin harsh or delayed shift walkthrough covers the test order, and the flare vs slip guide helps you separate a leaking circuit from a worn clutch on the road.
The kit is listed for 2005-12 TF-80SC / AF40 transmissions. The application chart with it includes the 2005-09 Volvo XC90, 2006-09 S80, 2005-07 S60 and S60 R, 2008-09 V70, XC60 and XC70, the 2006-09 Saab 9-3, the 2011-17 Buick Regal 2.0L, the 2008-09 Jaguar X-Type, and a long list of Opel, Peugeot, Citroen, Alfa Romeo, Lancia and Renault models sold outside the US. It is not the kit for the TF-81SC (AF21) used in the Ford Fusion, Mercury Milan, Lincoln MKZ, Mazda6 and CX-9 family; those parts look almost the same but do not interchange, and the 2005-up DP2511 overhaul kit is the one built around that unit. Late Regal and other revisions can differ, so match the tag on the case or send us your year and VIN before ordering. Every related part is in the Aisin transmission collection.
| Fits | AF40 2005-12 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. Those use the TF-81SC (AF21), which shares the basic design but uses different seals and gaskets. This kit is built for the TF-80SC / AF40 used by Volvo, Saab, Buick and the European brands.
No. It is the gasket and seal portion of a rebuild: paper gaskets, O-rings, lip seals, metal-clad seals and sealing rings. Frictions, steels, pistons and the filter are separate.
It can be, but check the valve body first. Wear in the solenoid modulator bore on this family drops solenoid feed pressure and causes hot flares and ratio codes without any seal leaking.
This family is filled with JWS 3309 type fluid. Use the exact fluid your owner manual lists, soak the new seals in it during assembly, and set the level hot by the factory check procedure.
Yes. Clear the adaptive values with a capable scan tool, then drive through every gear at light and moderate throttle so the control unit learns new clutch fill times on the fresh seals.
