Kryptonite KRFC25 2.5 inch Leveling Dual Rate Coil Springs | 2005-2024 Ford F250/F350 Super Duty 4WD

Features:

• True dual rate spring design
• Engineered for diesel 4WD Super Duty models
• Fits 2005–2024 F250 and F350 trucks
• Provides up to 2.5 inches of lift
• 3.5 inches lift on 2020–2024 models
• Heavy-duty load handling capability
• Designed for off-road and hauling use
• Comfortable on-road ride quality
• Minimizes spring sag over time
• Shot peened for extended durability
• Powder-coated black to resist corrosion
• Backed by Kryptonite's lifetime warranty

Built To Handle The Grind Without Killing The Ride

If you’re the type of truck owner who puts your rig to work and expects it to perform day in and day out, the Kryptonite KRFC25 2.5" Dual Rate Coil Springs were made for you. These springs aren’t just about gaining a little front-end height, they’re about delivering strength, control, and ride comfort without compromise. Whether you're towing heavy, running trails, or commuting daily, these coils are designed to handle it all without giving up that plush feel on the road. After years of real-world testing through hauling, off-roading, and everything in between, Kryptonite built these springs to last under pressure. The ride stays smooth when unloaded, but the springs firm up when the weight kicks in, offering the best of both worlds. If you're serious about lifting your Super Duty with quality parts that hold their own in tough conditions, this spring set is a no-brainer. And with Kryptonite’s No Fine Print Lifetime Warranty backing them, you’ll never have to second guess your investment.

Engineered For Strength Tuned For Comfort

The KRFC25 coil springs are a performance-focused leveling solution for 2005-2024 Ford F250 and F350 Super Duty 4WD trucks equipped with diesel engines. These springs are sold as a pair and provide 2.5 inches of lift for most models, with 2020 and newer trucks seeing approximately 3.5 inches due to chassis differences. Built with a true dual rate design, the coil uses a softer initial spring rate for on-road comfort, then transitions to a firmer secondary rate for stability under load and rough terrain. This design reduces sag over time and gives the suspension a more progressive response depending on how hard the truck is working. The coils are shot-peened for durability, powder-coated to resist corrosion, and crafted in the USA with high-grade spring material. While this setup is not a complete leveling kit, it’s a premium upgrade for diesel owners looking to improve ride quality and front-end stance without cutting corners. For customers who value both ride feel and rugged functionality, this is one of the most trusted coil options in its class.

Fits: 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024 Ford F250/F350 Super Duty 4WD

Notes:

• Compatible with 2005–2024 Ford F250/F350 4WD diesel models
• Not designed for gas engine applications
• Provides 2.5" lift on 2005–2019 models
• Provides 3.5" lift on 2020–2024 models
• Sold as a coil spring set only
• This is not a complete leveling kit
• Must be purchased from an authorized dealer for warranty
• Warranty registration required within 90 days of purchase
• Covered by Kryptonite’s No Fine Print Lifetime Warranty
• Coils engineered for heavy-duty use and off-road performance
• Ideal for towing, hauling, and demanding terrain