The SunCoast 618-HSK 23-Spline Billet Input Shaft is engineered to handle the extreme torque and stress found in high-performance Dodge Cummins applications equipped with 47RE and 48RE automatic transmissions. Designed for towing, racing, sled pulling, and high-horsepower diesel builds, this heavy-duty billet shaft provides significantly greater strength and durability over the factory input shaft.

Precision-machined from premium billet material and heat-treated for maximum durability, the SunCoast Billet Input Shaft helps eliminate one of the most common failure points in high-power transmission setups.

Features

• Heavy-duty billet 23-spline input shaft
• Designed for 47RE and 48RE automatic transmissions
• Increased strength over factory input shafts
• Ideal for towing, racing, and high-horsepower applications
• Heat-treated for maximum durability
• Precision-machined for exact fitment
• Helps improve transmission reliability under extreme load
• Designed for high line pressure and performance builds

Why Upgrade the Input Shaft?

The factory transmission input shaft can become a major failure point when torque and horsepower levels increase. Heavy towing, aggressive tuning, and competition use can cause factory shafts to twist or break. The SunCoast 23-Spline Billet Input Shaft is built to provide the strength needed for demanding diesel performance applications.

Vehicle Fitment

• 1994-2007 Dodge Ram 2500 5.9L Cummins
• 1994-2007 Dodge Ram 3500 5.9L Cummins
• Fits trucks equipped with 47RE or 48RE automatic transmissions

Built for Serious Cummins Performance

Whether your truck is used for towing, hot shot driving, drag racing, sled pulling, or street performance, the SunCoast 618-HSK Billet Input Shaft delivers the strength and durability needed to support demanding diesel power levels.

Part Number: 618-HSK

Note: Professional installation is recommended when servicing internal transmission components.