OEM-specification Hitachi Valve. Part number 4276114. Compatible with Hitachi Ex12 Ex12 2 Ex15 Ex15 2 Ex17U Ex17Una Ex18 2 Ex20U 3 Ex20Ur Ex20Ur 2 Ex20Ur 2C Ex20Ur 3.
Always verify with serial number before ordering.
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Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.