This is a Set of 4 Valves, 2 Intake and 2 Exhaust with Seals for the CRF150R and CRF150RB. This is OEM Size direct Replacement for the OEM Valves. Kibblewhite Stainless Valves Last Longer and are Stronger than Stock OEM Valves.

. 2 KW Intake Black Diamond Stainless Steel Valves

. 2 KW Exhaust Black Diamond Stainless Steel Valves

. 4 KW Viton Valve Stem Seals