Spline Adapter 26.2mm x 23 tooth

The Spline Adapter 26.2mm x 23 tooth from UNICLUTCH is a precision-engineered coupling component designed for high-performance clutch and drivetrain assembly work. This adapter bridges the gap between mismatched spline profiles, allowing mechanics and enthusiasts to mate driveshaft components, transmission outputs, or flywheel assemblies that would otherwise be mechanically incompatible. Whether you're building a custom transmission swap, upgrading a performance clutch system, or restoring a classic vehicle with non-original parts, a quality spline adapter is essential for achieving a solid mechanical fit without compromise.

Manufactured to OEM tolerances, the 26.2mm outer diameter with 23-tooth internal spline geometry ensures repeatable engagement and secure power transmission under load. UNICLUTCH's adapter is precision-machined from hardened steel, delivering the durability required in high-torque applications where standard press-fit or slip-fit solutions would fail. The 23-tooth profile is a common specification in manual transmission and clutch pack designs, making this adapter versatile across multiple vehicle platforms and retrofit scenarios. Proper spline engagement eliminates runout, vibration, and premature wear on mating components—critical factors in both street and competition builds where reliability cannot be compromised.

This adapter benefits transmission builders, clutch technicians, and DIY enthusiasts tackling engine swaps, clutch replacements, or driveline upgrades on vehicles ranging from street machines to track-focused platforms. Installation requires precise alignment during assembly—use a centering tool or dummy shaft to ensure spline teeth mesh without binding. The compact 6 x 5 x 9-inch profile and lightweight 1.12-pound design make it easy to handle during disassembly and installation work. Always verify spline tooth count and bore diameter compatibility with your specific transmission, flywheel, and clutch components before ordering to ensure seamless integration.