BD Diesel Stage 4 6R140 Transmission and Torque Converter Package for 2011-2016 Ford F-250/F-350 (6.7L) 1064504SS

Fits 2011-2016 Ford F-250 and F-350 Super Duty (6.7L).

The BD Diesel Stage 4 6R140 transmission and torque converter package is a matched, dyno-tested set engineered to handle the extreme torque demands of the 6.7L Power Stroke. This comprehensive upgrade addresses factory 6R140 weaknesses through precision-machined internals and advanced electronic pressure control. By utilizing BD's patented custom pressure plates, this unit increases clutch counts across all gears without compromising part strength, resulting in a 76% increase in theoretical holding power.

Each unit includes an electronic line pressure controller that delivers up to 300psi at wide-open throttle (WOT) to prevent clutch slippage under heavy load. The package is completed with a BD heavy-duty deep sump pan for increased fluid capacity and a performance torque converter featuring furnace-brazed fins and a dual-surface clutch assembly for maximum durability in street and towing applications.

• Manufacturer Part Number: 1064504SS
• Line Pressure: Up to 300psi via included Electronic Controller
• Holding Power: 76% increase over stock specifications
• Clutch Count (Intermediate): 8 (60% increase)
• Clutch Count (Overdrive): 8 (14% increase)
• Clutch Count (Forward/Direct): 6 each (20% increase)
• Clutch Count (Low Reverse): 5
• Build: Machined steel reaction ring and brand new valve body
• Torque Converter: Dual surface clutch with furnace-brazed pump and turbine fins
• Fluid Pan: BD Heavy Duty deep sump pan for extra cooling capacity