Universal Application of Turbo Oil Pan Plug This 10AN-M18x1.5 Oil Pan Drain Plug is widely used for oil pan which can suit 10AN M8X1.5 size pulg. Please check your old part size and appearance before purchase this one. Specification of Oil Pan Return Drain Plug Adapter Condition: New Material: Metal Type: Bolt-On Size: 40x28mm/1.57"x1.10" Thread: 10AN-M18x1.5 Include 1x 10AN to M18 x 1.5mm Adapter, 1x Bolt, 2x O-Ring Features of Turbo Oil Pan Return Drain Plug Fitting There need a accurate hole on the bottom of oil pan for easy put a fitting for turbo oil return for all NA to Turbo projects, use this adapter to replace the old or broken oil pan return drain plug conveniently. Use Bolt-on Type to installation, so all you need to handle is drill a hole on the bottom of oil pan and use the bolt we provide to tight in the oil pan then seal it. Adopt with durable metal aluminum materials, aim to wear/rust resistance, not east break or crack, with 2 O-ring seal, provide a longer service life.