Billet aluminium oil filler cap, anodised.

M24 x 3.0

To fit:

50SX (2009 - 2023), 65SX (2009 - 2023), 85SX (2003 - 2023), 125SX (1998 - 2023), 250SX (2009 - 2023), 300SX (2009 - 2023), 250SX-F (2005 - 2023), 350SX-F (2011 - 2023), 450SX-F (2007 - 2023)