6R140 2017-2019 Ford F-250/F-350 Super Duty 6.7L RWD and AWD/4WD – Remanufactured 6-Speed Automatic Trans

Description

Holding 935 lb-ft of diesel engine torque under 290 PSI fluid line pressure through extreme weather fleet assignments, this unit maintains dependable forward motion. Municipal fleet managers upgrade their winter service trucks by specifying a Ford 6R140 Remanufactured Transmission suited for 2017 to 2019 Ford F-250 and F-350 Super Duty 6.7L RWD and 4WD configurations.

Reinforced A380 die-cast aluminum cases resist driveline torque shock during four-wheel-drive engagement in deep snow or mud. Vacuum-tested valve bodies feature precision-fitted Sonnax bore sleeves that stop internal fluid bypass in extreme working heat. High-energy carbon-metallic clutch packs contain radial fluid channels that expel hot oil away from steel drive plates. Fluid capacity measures 16.5 quarts of MERCON LV, unit dry weight totals 287 lbs, and dual 1/2-inch quick-connect ports ensure cooling flow.

Key Features of Ford 6R140

Severe clutch pack slippage during heavy snowplow clearing cycles drives municipal fleet buyers to buy Ford 6R140 remanufactured transmission units. Recalibrated hydraulic shift valves and reinforced friction plates deliver instant clamp force to handle severe driveline resistance.

• Heavy-duty 8620 steel planetary gears resist gear tooth pitting under repeated heavy axle shock loads.
• A broad 3.97:1 low first gear multiplication maximizes low-speed traction on snow and mud work zones.
• Dyno-tested hydraulic valve bodies stop fluid leaks across critical intermediate shift circuits.
• Rugged 6R140 4WD automatic transmission units maintain factory operating pressures under severe duty cycles.
• Precision-ground pump assemblies deliver consistent line pressure to prevent intermediate shift hesitation.
• Continuous-feed oil passages direct pressurized ATF straight into high-friction planetary gear sets.
• Reinforced transfer case mounting faces resist structural cracking under severe axle torque transitions.

Hydraulic Performance Gear Ratio Matrix

Main hydraulic line pressures sustain between 220 and 290 PSI to prevent internal friction plate slipping under load. Fluid pan temperatures stay inside 165°F to 195°F during demanding high-load four-wheel-drive operation. Engine input torque handles 935 lb-ft at 1800 RPM without mechanical deflection across internal shafts. Auxiliary remote cooling equipment expels 1260 BTU per minute during continuous heavy plowing operations. The six gear ratios step through 3.97:1, 2.32:1, 1.52:1, 1.15:1, 0.86:1, down to a 0.67:1 overdrive ratio.

Transfer Case Output Alignment

Channeling drive torque straight into the transfer case or rear driveshaft, a 31-tooth hardened steel shaft eliminates spline play. Dial indicator verification confirms output shaft runout remains under 0.0028 inches total indicator reading. A cast-iron parking pawl holds up to 1400 lb-ft of static torque to secure parked trucks on steep hills.

Shift Strategy Routine Protocol

Execute electronic adaptation learn sequences using an OBD-II diagnostic computer prior to putting vehicles into service. This transmission is not engineered for track drag racing, extreme rock crawling, or gross combined vehicle weights exceeding factory chassis tow limits. Each shift verify transmission gear change firmness under varied engine loads. Every 30 days check cooler line unions and case mating seams for fluid leaks. At 30,000 miles renew transmission fluid and install fresh pan filter components.

Warranty Scope Crate Documentation

Commercial vehicle protection is guaranteed by a 3-Year / 100,000-Mile commercial fleet warranty covering internal powertrain components. Shipments include the remanufactured transmission unit, a balanced torque converter, cooler line O-rings, dynamometer test data sheets, and comprehensive setup paperwork.