
Remanufactured Automatic Transmission Torque Converter for GM 4L80E 91-09 HD
ATK has honed the reman torque converter operation to optimize a steady outflow of a variety of products by using and adopting standard operating procedures to supply automotive, high-performance, heavy-duty, and industrial converters. This torque converter has been remanufactured for ATK by CVC (Consolidated Vehicle Converters).
If returning a torque converter core, please see the link below for ATK’s standard core return procedure as the customer is responsible for return shipping charges.
Click Here: ATK Torque Converter Core Return Instructions
ATK TQBU54HD Features:
- Bosses/Mounting: 6 Pads Mounting
- Factory Code(s): 4L85E
- Mounting Holes Distance: 11.5 in. Bolt Circle
- Pilot to Engine: 1.703 in. Pilot
- TAG ID: ID CODE: 24210825, 24210830, 24210831, 24217235, 24219326/328, 24221719/7936, 24240861
- Note: HD Billet Cover, 2200 Stall
- Converter Mount/Diameter: 13.5 in. Dia
- Hub OD: 2 in. Flats Hub, 2 5/8 in. Hub Length
- OEM Make: GM
- Spline to Turbine: 35 Spline
- Interchange part numbers: BU54HD, TQBU54HD

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