Frictions, steels, gaskets, seals and O-rings to overhaul a Hyundai or Kia A6LF1, A6LF2 or A6LF3 six-speed automatic on the bench.
A 2010-2015 Hyundai Sonata that slips, flares between gears, refuses to move in Drive while Reverse still works, or drops into a single limp gear after the fluid has gone dark usually needs its six-speed overhauled, not just serviced. This master rebuild kit, manufacturer part number ING-I12D0401, is built for the Hyundai/Kia A6LF family (A6LF1, A6LF2 and A6LF3). It supplies friction plates, steel plates, the gasket set, and the seals and O-rings to reseal the transaxle and renew every clutch pack in one pass.
Hyundai and Kia build their six-speed transaxle in three sizes: A6GF (small), A6MF (medium) and A6LF (large), with the last digit marking the torque capacity, as Transmission Digest explains. The A6LF is the heavy-duty version behind the bigger four-cylinder and V6 engines. It shifts by applying clutch packs and brakes, including an underdrive brake, under pressure from a solenoid-controlled valve body. The frictions glaze with heat and mileage, and the piston and case seals harden until they can no longer hold apply pressure, so the shifts flare and ratio errors set. A full kit renews all of those wear parts together so no old pack drags down the rebuild.
Not every A6 shift complaint lives in the clutches. ATRA's Gears magazine says engine cam and crank timing faults on these Hyundai and Kia models can cause flares, harsh garage shifts and a shudder that looks like converter trouble, and that a stored code in any module can freeze transmission adaptive learning. Transmission Digest also describes a 2012 Sedona A6LF2 with a P0768 solenoid code traced to a shorted circuit, not worn clutches. Scan every module, check the solenoid resistance, then pull the pan. Our guides on reading transmission live data and diagnosing a slipping transmission walk you through it.
The listing catalogs this kit for 2010-2015 Sonata 2.0L and 2.4L, 2012-2015 Tucson 2.0L, 2015 Elantra Limited and Sport 2.0L, and 2011-2014 Azera GLS 3.3L. Hyundai used A6GF, A6MF and A6LF units across overlapping model lines, so confirm the code on your transaxle tag or build sheet matches A6LF before ordering; the medium-duty unit uses the A6MF1/A6MF2 master rebuild kit instead. If you are unsure, send us your year and VIN. More kits are in our rebuild kits collection.
The kit does not include solenoids, a filter, the torque converter or hard parts.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Read the code on the transaxle tag or your build information. Hyundai and Kia used both in the same model lines with different engines. The A6LF is the large, higher-torque version. If you cannot find it, send us your year and VIN.
Yes. It is cataloged for the A6LF1, A6LF2 and A6LF3, and the listed vehicles are the 2010-2015 Sonata 2.0L and 2.4L, 2012-2015 Tucson 2.0L, 2015 Elantra Limited and Sport 2.0L, and 2011-2014 Azera GLS 3.3L.
Solenoids, the filter, the torque converter, bushings, drums and other hard parts. It is the frictions, steels, gaskets, seals and O-rings.
That symptom often points to the underdrive clutch, including a cracked underdrive piston or loose underdrive support bolts. The kit renews the frictions and seals, but inspect the piston and bolts on the bench and replace any damaged hard parts.
Hyundai/Kia SP-IV automatic transmission fluid. Use it to soak the new frictions and for the final fill; do not substitute a generic multi-vehicle fluid.
