SunCoast E4100-BIN Billet Intermediate Shaft | 1989-2003 Ford F250/F350 7.3L Powerstroke

Features:

• Fits 1989–2003 Ford 7.3L Powerstroke trucks
• Replaces weak OEM intermediate shaft
• Precision-machined billet steel construction
• Designed for high-horsepower and towing builds
• Ideal for performance and heavy-duty use
• Built to withstand increased torque loads
• Reduces risk of shaft failure under stress
• Engineered through real-world failure analysis
• Compatible with 4R100 transmission setups
• Made in the USA with premium materials

Put The Power Down Without Breaking Your Transmission

If you're pushing your 7.3L Powerstroke hard, whether it's for towing, racing, or everyday hauling, you need components that won't fold under pressure. The SunCoast E4100-BIN Billet Intermediate Shaft is built for those who demand more out of their drivetrain. This isn’t a drop-in for the sake of replacement, this is an upgrade born out of real-world failure analysis and designed to handle serious torque where factory parts tend to crack or twist. Whether you're launching at the track or pulling a loaded trailer uphill, this shaft is built to stay solid and keep power flowing to the wheels. It’s crafted from high-grade billet material and precision-machined to deliver a reliable fit for your 4R100 transmission. You’ve already put in the time and money to build your engine, don’t let a weak intermediate shaft be the reason your transmission fails. Step up to something stronger and drive with peace of mind, knowing your transmission can handle whatever you throw at it.

Precision Engineered To Reinforce The Transmission’s Weakest Link

The SunCoast E4100-BIN Billet Intermediate Shaft is a performance-grade replacement for the OEM shaft in 1989 to 2003 Ford F250 and F350 trucks equipped with the 7.3L Powerstroke and 4R100 transmission. This component was designed using failure data collected from high-stress applications where factory parts consistently fell short. Machined from billet steel, the shaft offers superior tensile strength and fatigue resistance compared to stock cast pieces. It’s built to handle the increased torque output that comes from performance tunes, larger injectors, or heavy towing loads. The shaft’s geometry is carefully engineered to maintain proper alignment under load, reducing the likelihood of flex or shearing inside the transmission. This upgrade is an essential component for any transmission build focused on long-term durability and high-output reliability. Whether your truck sees track time or long highway pulls, this shaft provides the confidence to run hard without risking internal failure.

Fits: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ford F250/F350 7.3L Powerstroke

Notes:

• Designed for 1989–2003 Ford F250/F350 with 7.3L Powerstroke
• Compatible with 4R100 automatic transmissions
• Replaces OEM intermediate shaft prone to failure under load
• Ideal for high-horsepower or heavy towing applications
• Precision-machined from billet steel for maximum strength
• Developed using extensive OEM failure analysis
• Recommended for trucks running performance transmission builds
• Supports increased torque handling and long-term durability
• Professional installation strongly recommended for proper fitment
• Made in the USA by SunCoast, a leader in transmission innovation