Genuine OEM Mitsubishi factory replacement castle style axle nut, washer and cotter pin for the 2008-2010 Evo X models. The castle nut uses a 32mm socket. Please visually confirm the axle nut design on your car before purchase as they do vary between model years. STM sells this as a kit for one axle with the pin, nut and washer. 

Vehicle Fitment:
2008-2010 Evolution X (Castle Style)
• Fits front and rear axles
• Note the 2011+ Evo X models use the MB515403 Solid Style Nut.
• Please visually confirm which nut you need.

Purchase Includes:
(1) 3885A009 (Castle Style Nut)
(1) MB109025 (Lock Washer)
(1) MF472085 (Cotter Pin)

If you only need a single piece, just click on the part number to purchase.