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Description
About the Aisin AS68RC 6-Speed Heavy-Duty Automatic Transmission
The AS68RC is a 6-speed ultra heavy-duty automatic transmission by Aisin Seiki, mainly used in medium-duty commercial trucks across the global commercial truck industry. Built for longevity and smooth operation, this Aisin transmission is renowned for strong and reliable shift performance that supports the medium-duty truck duty cycle of constant stop-and-go delivery, towing, and vocational service. Part of maintaining the AS68RC to keep it efficient includes routine fluid exchanges and a regular leak check. In commercial applications, this AS68RC Transmission for Sale at our site is one of the most durable medium-duty automatics available and remains a popular choice with vehicles from RAM 4500/5500 chassis cabs to Isuzu and Mitsubishi Fuso commercial trucks. A bit of regular maintenance goes a long way, and with proper care the AS68RC delivers reliable operation when you need it most.
Key Features of the AS68RC Transmission
- 6-Speed Configuration: Six forward gears greatly improve fuel economy and acceleration by offering a broader spectrum of gear ratios compared to older 4-speed and 5-speed medium-duty automatics.
- Longevity: Designed for medium-duty commercial truck duty cycles and rated for 750-900 lb-ft of input torque.
- Silky Smooth Shifting: Aisin’s renowned precision construction delivers smooth shift transitions for drive comfort and passenger comfort.
- Hydraulic and Electronic Control: Electronic control unit (ECU/TCM) manages shifting patterns and torque converter lockup based on driving conditions, throttle position, load, and grade.
- Lockup Torque Converter: Locks up at cruising speeds to eliminate slip, improving fuel economy and keeping transmission fluid temperatures under control.
- Advanced Electronics: Modern electronic management permits adaptive shift quality and adjustment to driving conditions.
- Adaptive Learning: Adjusts shift points and quality to driving conditions and driver behavior over time for optimal performance.
- Wide Gear Ratios: Flexible, efficient performance from heavy launch under load to highway overdrive cruising.
- High Torque Capacity: Rated for high-torque medium-duty diesel applications including the 6.7L Cummins (RAM 4500/5500) and the larger Isuzu 6HK1-TC 7.8L diesel.
Condition Options for AS68RC Transmissions
When searching for an AS68RC transmission for sale, you’ll encounter various condition options:
- Used AS68RC Transmissions (this listing)
- Fairly Used AS68RC Transmissions
- Reman AS68RC Transmissions (call for availability and pricing)
AS68RC Transmission Compatibility
Vehicles:
- RAM Trucks: RAM 4500 chassis cab, RAM 5500 chassis cab (with 6.7L Cummins Turbo Diesel)
- Isuzu: Isuzu FTR, Isuzu FVR, Isuzu NQR (specific models in certain markets)
- Mitsubishi Fuso: Mitsubishi Fuso Canter FE180, Mitsubishi Fuso Canter FG4X4
- Hino: Hino 258ALP, Hino 268A, Hino 338
- UD Trucks: UD 2600, UD 3300
- Freightliner: Freightliner Business Class M2 106, Freightliner Business Class M2 112
Compatible Engines:
- RAM Trucks: 6.7L Cummins Turbo Diesel (in RAM 4500/5500 chassis cab applications)
- Isuzu: 4HK1-TC (5.2L diesel engine), 6HK1-TC (7.8L diesel engine)
- Mitsubishi Fuso: 4P10 (3.0L diesel engine), 4M50 (4.9L diesel engine)
- Hino: J08E (8.0L diesel engine), J05E (5.0L diesel engine)
- UD Trucks: GH7 (7.0L diesel engine), GH11 (11.0L diesel engine)
- Freightliner: Cummins ISB6.7 (6.7L diesel engine), Cummins ISL9 (8.9L diesel engine)
Quality Assurance and Testing
When you buy an AS68RC transmission for sale from us, rest assured that each unit undergoes rigorous testing:
- Dynamometer testing for proper pressures and shift quality
- All 6 forward gears and reverse engagement verified
- Lockup torque converter function tested
- Electronic shift control verified through scan tool
- Comprehensive quality control checks
- Fluid inspection for burned smell or metal contamination
Vehicle Compatibility
| Vehicle | Compatibility |
|---|---|
| RAM 4500 / 5500 Chassis Cab | With 6.7L Cummins Turbo Diesel (2007+ MY) |
| Isuzu FTR / FVR / NQR | Medium-duty commercial trucks |
| Hino 258ALP / 268A / 338 | Medium-duty commercial trucks |
| Mitsubishi Fuso Canter FE180 / FG4X4 | Light-medium commercial trucks |
| UD 2600 / 3300 | Medium-duty commercial trucks |
| Freightliner Business Class M2 106 / M2 112 | Medium-duty chassis with Cummins ISB6.7 / ISL9 |
Condition and Inspection
- Donor commercial truck confirmed (RAM 4500/5500, Isuzu, Hino, Mitsubishi Fuso, Freightliner M2, UD)
- Engine pairing confirmed (6.7 Cummins, Isuzu 4HK1-TC/6HK1-TC, Hino J05E/J08E, Mitsubishi Fuso 4P10/4M50, Cummins ISB6.7/ISL9)
- All 6 forward gears and reverse tested
- Electronic shift control verified through scan tool
- Lockup torque converter function confirmed
- Adaptive learning algorithm operation verified
- TCM calibration documented (donor truck calibration noted)
- Fluid inspection for burned smell, metal contamination, or coolant contamination
- Dynamometer testing for pressures and shift quality
- External case visual inspection
- Donor truck and engine pairing confirmed
- All 6 forward gears and reverse tested
- Electronic shift control verified
- Lockup torque converter function confirmed
- Adaptive learning verified
- Dynamometer testing for pressures and shift quality
- Free freight pallet delivery to all 50 states
- 15 day replacement warranty on internal defects
- Aisin/medium-duty-experienced support team on the phone
Mike Daniels (verified owner) –
The AS68RC transmission I bought from Vaz Auto Solutions was a lifesaver for my Ram truck. Arrived quickly and in perfect condition. Installation was straightforward, and it’s been running smoothly for months now. Great price too. Couldn’t be happier with my purchase
Richard Thompson (verified owner) –
Fantastic experience with this AS68RC transmission! Vaz Auto Solutions delivered it promptly, and the quality exceeded my expectations. Installation was a breeze, and my truck’s performance has improved significantly.