This is a Non-OEM part. Designed to work with or instead of original OEM parts on some Honda engines. Non-OEM parts are also known as aftermarket parts. Specifications: Overall Length: 40 mm / 1.57 inches, Overall Width: 22.45 mm / 0.88 inches, Overall Height: 12.65 mm / 0.5 inches, Diameter of Fixing Hole(s): 6.44 mm.