Product Description OEM Mitsubishi Engine Oil Dipstick O-Ring (DSM/Evo 4-9)#MD075834: Bottom O-Ring (1G DSM/Evo 4-9)#MD317089: Top O-Ring (Evo 4-9)#MD317090: Top O-Ring (2G DSM)Select your o-ring in the drop-down menu. Sold individually as needed. Price is for one o-ring.