AS68RC Overhaul Kit 2005-2012, new and ready to install. Fits the AS68RC. Ships fast from the USA.
If the Aisin six-speed behind your 6.7L Cummins Ram is leaking, slipping once it gets hot, or flaring between gears under a load, and you are planning a teardown, this is the sealing half of the rebuild. It is a Transtec AS68RC overhaul kit for 2005-2012 units (Aisin also calls this transmission the A465), listed with Transtec DuraPrene pistons, and it covers the gaskets, seals and sealing rings needed to put the case, pump and valve body back together tight.
The AS68RC builds every gear with hydraulic pressure. The pump feeds line pressure through the valve body, and the oil reaches each clutch through sealing rings on the rotating shafts and is held there by the lip seals on the clutch pistons. In this unit the K1 clutch applies from first through fourth and K2 applies from fourth through sixth, so both stay loaded for most of the drive. When a sealing ring wears or a piston seal hardens from heat, that clutch loses apply pressure and slips, which overheats the fluid and speeds up the next failure. An overhaul kit replaces all of those soft parts at once, plus the case and pump gaskets and the valve body gaskets, so every circuit holds pressure again. Bonded pistons, which come with the seal molded on, also remove the guesswork of fitting loose lip seals.
It does not include frictions, steels or a filter. If the clutches are burnt, step up to the AS68RC master rebuild kit, which adds frictions and steels to an overhaul set.
Check the fluid level and condition first, since low fluid alone causes many of these complaints. Our Aisin slipping under load guide covers pressure and clutch checks, and harsh or delayed shifts helps separate adaptive or electrical issues from internal leaks. Transmission Digest has documented a stator support shaft that turns in the pump on this family, which cross-leaks K1 oil into the K2 and converter clutch circuits; if you find that during teardown, the pump needs attention beyond seals. Also see our AS68RC transmission problems page.
The kit is listed for 2005-2012 AS68RC (A465) units. In Ram trucks the AS68RC ran behind the 6.7L Cummins in heavy-duty pickups and 3500-5500 chassis cabs from mid-2007 through 2012, when the AS69RC took over. The 2005 start reflects the same Aisin six-speed used earlier in medium-duty trucks such as the Isuzu and Mitsubishi Fuso versions, and those units differ in places from the Ram build. Match your transmission tag and gaskets to the kit, or send us your year and VIN before ordering. We also stock other AS68RC overhaul kits for narrower year ranges, such as the 2006-2012 version.
| Fits | AS68RC 2005-2012 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | OEM |
| Reference | A465 |
| Ships | From the USA |
| Warranty | 1-year |
No. It is the sealing kit: gaskets, sealing rings, O-rings, lip seals, pump and case seals and pistons. For new clutches, buy the AS68RC master rebuild kit, which adds frictions and steels.
The kit is listed for 2005-2012 AS68RC units, which covers the Ram heavy-duty pickups and chassis cabs that used this Aisin six-speed. Send us your year and VIN if you want us to confirm before ordering.
No. Order a filter and pan gasket separately. Our AS68RC filter kit with cork gasket fits 2007-2012 Ram units.
Use Mopar ASRC fluid or Mobil 3309. Do not substitute a generic ATF, as shift quality and clutch life depend on the correct friction properties.
Only if the slip is caused by pressure leaking past worn seals or rings, and only before the clutches are burnt. If the frictions are glazed or the steels are blued, replace them too.
Yes. Aisin uses A465 as another name for the AS68RC family, and the kit is listed for both. Isuzu and Fuso units differ in places from the Ram version, so match your parts on teardown.
