For grease applications, the 342 series Dirt Exclusion hub caps provide the same 340 casting without a side fill plug, plus a solid window with a sintered metal vent for venting purposes. To further support grease wheel ends, STEMCO developed the 352 series Solid Aluminum hub caps with a duckbill vent inserted in the face of a solid hub cap.
Solid aluminum hub caps that provide the quality and durability the trucking industry needs.
Dirt Exclusion Hub Caps provide a great venting system with easy lubricant inspection through window.
Aluminum casting adds strength during curbing or impact.
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