35 Spline 2500 Stall Converter

Features:

• 2500 RPM stall for improved launch
• 35 spline input for added strength
• CNC-machined billet stator design
• Triple disk lockup clutch system
• Forged billet cover for max durability
• Custom pump and turbine modifications
• Proprietary trapezoid-style clutch teeth
• Heat-treated 4140 turbine splines
• Spun balanced for smooth operation
• Tig welded, furnace brazed internal fins
• Built in-house for precise quality control

2500 Stall Converter for Ram 5.9L Cummins

If you're building serious power with your 5.9L Cummins, your torque converter can’t be an afterthought—it has to be built to handle the load. That’s where the SunCoast 35 Spline 2500 Stall Converter really shines. This isn’t your average off-the-shelf converter. It’s designed from the ground up for high-torque diesel applications, and built in-house by the experts at SunCoast who know what it takes to keep your Ram moving under pressure. With a 2500 RPM stall and a 35 spline input, this converter is ideal for trucks running upgraded turbochargers, fueling mods, or heavier tuning. That higher stall point helps get your turbo spooled faster off the line, giving you more usable power when it matters most—whether you're towing, racing, or just lighting it up on the street. Inside, you'll find a CNC-machined billet stator, a forged billet cover, and a billet piston designed to house triple lock-up clutches that don’t flex like weaker designs.

High-Quality Construction & Design

SunCoast doesn’t just slap these together either. Their converters feature tig-welded, furnace-brazed fins for superior strength and long-term durability. The clutches use a unique trapezoid tooth design instead of standard round tabs, giving them better engagement and lifespan under load. Plus, every unit is spun balanced and pressure tested before it leaves the shop, so you’re getting the kind of precision that stands up to real-world abuse. This is the kind of upgrade that brings everything together—letting your Cummins put the power down exactly how and when you need it.

Fits: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Ram 5.9L Cummins