BJK 602 Product description Seal Kit StoneAge® BJV 20KParts needed for seal changeBJK602: 1 x BJ 011-C Carbide seat 1 x BJ 012-TRO H.P. seal + O-ring1 x BJ 071 Backup o-ring1 x BJ 072 O-ring1 x BJK 117 O-ring1 x MT 018 O-ring