VALVE SEAL 4S1M RACING (SEAL KLEP) BATANG 4.5MM DAN 5.0MM SPESIFIKASI PRODUCT 4S1M RACING 100% ORIGINAL VALVE SEAL (SEAL KLEP) 4.5MM amp; 5.0MM 1 PACK = 2 PCS QUALITY: DOUBLE RING GOOD FOR RACE amp; DAILY USE HIGH RUBBER QUALITY MATERIAL ORIGINAL RUBBER MARKING BY 4S1M RACING UNIVERSAL VALVE SEAL: BATANG KLEP 4.5MM BATANG KLEP 5.0MM