OEM No/Model: 3901097
4BT diesel engine valve oil seal(Old type).We have two types P/N(3921640/3901097)
Three Material:(fluororubber,NBR,NBR with seat )
This one is old type for EQB truck using.
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expansion valve gasket , valve gasket , valve seal , valve seals , stem valve seals , Auto Valve Seal , Truck Valve Seal , Valve Seal Parts