14631-RDV-J00 Fr Shaft - Overview. The 14631-RDV-J00 Fr Shaft is an essential front intake rocker arm shaft component designed for Honda marine engine systems as well as select Honda vehicles including the 2003-2007 Pilot, 2005-2007 Accord Hybrid, Odyssey, and others. It supports the engine's valvetrain system by providing precise mounting and smooth operation of the intake rocker arms, which play a vital role in controlling valve timing and engine efficiency. Manufactured to match factory speci