Oil Cooler & Hoses Hose=20, 23 Cooler= 5.5x3x1.5, ID=12.6mm Bolts c/c=2.125, 3.5 Fits E-Ton Matrix 150cc Scooters : Get 2 It Parts, LLC offers SAME DAY SHIPPING. FAIR PRICING. SOUTH CAROLINA WAREHOUSING.