[Set contents/accessories] Exhaust valve x 4, exhaust valve spring x 3, 2nd exhaust valve spring x 1, check valve x 2, check valve spring x 2, oil seal HTC-17-40-9 x 1, Oil seal SC-17-30-7 x 2, Oil seal SC-15-30-7 x 1 O-ring P-12 x 1, O-ring P-20 x 1, O-ring P-35 x 1, O-ring G-55 x 1, O-ring S-5 x 4, O-ring S-12 x 1, O-ring S-16 x 2, O-ring S-24 x 2, O-ring S-45 x 1, O-ring S-85×3, O-ring ISO_C1950G×1, O-ring N-28×1