The BD 6R140 ProForce 4D Torque Converter is designed for hard-working and modified 6.7L PowerStroke Diesels. This torque converter is equipped with 4 clutch surfaces designed to handle heavy towing loads and is intended for up to 900+ horsepower. Our in-house CNC machined forged cover is designed to prevent warping and improper balance while facilitating the increased clutch count without sacrificing strength. In addition to a new cover, BD has designed a custom piston, bearing hub, release springs and backing plate to retain the OEM captured clutch design which delivers the same great drivability 6R140 owners are accustomed to.. BD torque converters feature exclusive performance cast aluminum stators that improve efficiency and durability for better response in stock to higher horsepower applications. Each BD-engineered torque converter features a stamp-forged steel front cover, furnace-brazed fins, billet steel piston, hardened piston seal bore, improved friction lining and steel Torrington needle bearings which replace plastic thrust washers. Tested to 1,000 lbft crank torque!. BD Diesel 2011-2016 Ford F250/F350/F450/F550 6.7L Proforce 4D Torque Converter. PROFORCE 4D TORQUE CONVERTER FORD F250/F350/F450/F550 6.7L 2011-2019 6R140. 23 Percent Increased Piston Area For Additional Clutch Clamping Force. Increased clutch and steel plate count for improved heat dissipation. 23% increased piston area for additional clutch clamping force. Four friction surfaces instead of the factory two surfaces. Captured clutch design with clutch return springs. Captured Clutch Design w/Clutch Return Springs. ProForce Torque Converter; 4D; Enhanced Stall;. Billet Bearing Hub; Piston And Clutch Retainer. Billet bearing hub, piston and clutch retainer. Factory furnace-brazed pump and turbine fins. PROFORCE 4D TORQUE CONVERTER FORD 6R140. Automatic Transmission Torque Converter. Stamp forged 1-piece cover. ProForce Torque Converter. Comes with hardware. TORQUE CONVERTER. Comes w/Hardware

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