Ford F-Series Super Duty
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2015 Ford F-450 upgrades

The 2015 Ford F-450 tops the F-Series Super Duty pickup truck lineup with maximum towing and hauling capability. Changes for 2015 include a strengthened frame, suspension, new commercial-grade 19.5-inch wheels and tires, and core work components shared with F-Series Super Duty chassis cab models.

Just as the next-generation Power Stroke engine reflects changes that improve power while maintaining durability, the Super Duty engineering team took specific actions to bolster key F-450 components to improve towing capability, including:

  • Upgraded rear driveline U-joints
  • Upgraded suspension components, including new rear leaf springs, front and rear stabilizer bars and shocks
  • Increased fifth-wheel and gooseneck trailer capacity
  • Stronger steering gears and steering linkages
  • Larger brakes shared with Super Duty chassis cab models, including wheel brakes, parking brake and new antilock brake calibration
  • F-450-specific Power Stroke diesel engine calibration

Fuel system improvements

Turbo changes drove improvements to the fuel delivery system, specifically a new high-pressure fuel pump and fuel injectors. The pump’s cam stroke is increased to deliver more fuel when desired for increased power. All-new injector tips better atomize the fuel, resulting in improved combustion that enables lower noise, vibration and harshness. Other benefits include cleaner emissions and a reduction in the buildup of fuel deposits on the valves over time.

In addition, a new exhaust temperature sensor enables more accurate fuel control, which improves both durability and driveability – especially when towing – and helps the customer drive the Power Stroke diesel to its maximum capability.

Even though the fuel system delivers extra fuel as needed to provide more power, other efficiency improvements ensure 2015 Ford F-Series Super Duty pickup customers see similar performance to today’s best-in-class fuel economy.

Further enhancements to Ford Power Stroke diesel include:

  • Ford-designed and -engineered 6R140 TorqShift® six-speed transmission uses a new torque converter to manage increased horsepower and torque
  • New polymer coating on main bearings for improved wear-and-tear durability and lower friction
  • Improved crankshaft fillet design – the transition point between the crankshaft’s journals – to increase crankshaft power carrying capability
  • Increased crankshaft damper weight to reduce rotating forces on the crankshaft when the engine is performing at peak power levels
  • New five-layer head gasket to handle wider range of engine firing pressures resulting from more powerful engine performance
  • Added material to the engine’s cylinder heads, exhaust manifold and valvetrain to handle increased power levels
  • Redesigned turbo oil and cooling lines to improve sealing
  • Piston assembly upgrades to increase load-bearing capability
  • New four-layer exhaust manifold gasket for improved durability