垫片 2.0 cylinder head YANMAR.NY16-SN.130605-01260 FIG.5/24 PARALLEL PIN YANMAR.NY16-SN.138613-53200 FIG22/6 ACKING YANMAR.NY16-SN.151623-59680 FIG25/9 O型圈 (投资局) P14 YANMAR.NY16-SN.24311-000140 FIG25/11