Feature: smooth operate, durable, low noise, big displacement range. Applications: Middle and small size cars and other special used vehicles. By changing strap reel, loop voltage and inlet and outlet connection, we can offer kinds of transfiguration products to match with home and abroad cars according to requirements of users. Item No.: CMD-10PA17 Specifications: Number of cylinder: 10 Diameter of cylinder: 29.5mm Stroke: 26mm Displacement: 178cc/r Refrigerant: R134a Lubricant oil: SP20 Max. Speed: 7000r/min Voltage: DC12V Number of grove: 4PK Port direction: Radial (upward) Weight: 6.8kgs