Athena Top End Gasket Kit P400485600520 is a complete cylinder-top overhaul set for classic Yamaha 500 cc single-cylinder models. Engineered in Italy and precision laser-cut, the kit provides all required gaskets and critical seals for the head and thermal unit to restore reliable sealing performance.

Features

• Complete set for cylinder head and top end overhaul


• Precision laser-cut gaskets for consistent fit


• Surface-treated materials to compensate minor irregularities


• Stress-relieved production to improve sealing in critical areas


• Includes rubber gaskets, O-rings and valve stem seal

Specifications

• Part number: P400485600520


• Kit type: Top End (cylinder/head) gasket kit


• Net weight: 0.12 kg


• EAN: 8050444899557


• Engineering and development: Italy

Cross-Reference OEM Part Numbers

• Cylinder head gasket: 2J2-11181-00; 2J2-11181-09; 583-11181-01


• Cylinder base gasket: 583-11351-00; 1JN-11351-00; 3HT-11351-00

Vehicle Fitments

• Yamaha SR E / F / G / SP 500 cc 1978–1987


• Yamaha TT 500 cc 1976–1981


• Yamaha XT 500 cc 1976–1983