PISTON POS.STOP .49 STROKE +.040

The Tilton Piston Pos.Stop .49 Stroke +.040 (MPN 62-1641) is a precision throwout bearing piston stop engineered for the Tilton 1600 Series hydraulic throwout bearing systems. This component manages clutch engagement geometry by controlling piston travel distance, ensuring consistent pressure modulation and repeatable clutch feel across thermal cycling and extended use.

Manufactured from aluminum and finished in black anodize, this piston stop features a 0.490-inch stroke specification with a +0.040 tolerance band, delivering the precise dimensional control required in high-performance hydraulic clutch systems. The 1.375-inch thickness accommodates the bearing assembly geometry while maintaining structural rigidity under repeated actuation cycles. Compact at 0.11 lbs, it integrates seamlessly into existing Tilton 1600 Series configurations without adding unnecessary mass to the throwout bearing assembly.

This component is essential for users maintaining or rebuilding Tilton 1600 Series throwout bearings, particularly in racing, high-performance street vehicles, and applications demanding responsive, tunable clutch actuation. The piston stop directly influences engagement bite point, pedal travel characteristics, and bearing longevity by preventing over-extension and maintaining proper preload. Proper specification selection ensures compatibility with your existing hydraulic clutch system and preserves the performance characteristics the Tilton system is engineered to deliver.

Tilton 1600 Series components are widely specified in motorsports and high-performance automotive applications where clutch control precision is non-negotiable. This piston stop replacement or upgrade component allows technicians and builders to dial in exact engagement behavior, making it an important selection for anyone rebuilding or maintaining these systems.