Page 19 Cylinder Head Assembly Plate A B6CH Item Part No. References Qty. Description Notes 1 TPN488 1 CYLINDER HEAD ASSEMBLY 2 F TPN488 1 CYLINDER HEAD KIT 3 TPN646 3 VALVE SEAT INSERT 4 120166350 4 INTAKE VALVE 5 TPN645 3 SEAT 6 120176360 4 EXHAUST VALVE 7 120406050 4 VALVE SPRING SEAT (A) 8 120406070 4 SEAL - VALVE STEM (B) 9 198216700 8 VALVE SPRING 10 120226070 16 VALVE COLLET 11 120186080 8 CAP 12 064210030 1 CAP 13 064210030 1 CAP 14 064210025 5 PLUG 15 064210018 7 CAP 16 064210010 3 PLUG 17 120216040 8 CAP 18 111147591 J (+) 0.5MM 1 GASKET - CYLINDER HEAD 19 012110660 1 STUD 20 012110860 4 STUD 21 111136480 14 SCREW 22 111136490 4 SCREW Footnotes (A) EXHAUST (B) INLET