b'step 3choose Your size Designed to performIf you are replacing an OEM cooler, use the Dimensional Guide to choose one that best fits the mounting area and has at least the same surface area as the cooler you are replacing. It is always best to error in favor of a larger size if mounting space allows for it.Review the Performance Metrics for each of our products to determine the oil cooler size needed based on oil flow and heat load*. The performance metrics are based on the following:w 1000 Standard Feet Per Minute (SFPM)Air Velocityw 50 SUS Oilw 100F Inlet Temperature Difference engineered A rule of thumb for estimating the heat load for a to survivesimple hydraulic circuit is 25% of the of the input power. For example, a 20hp motor generates a 5hp heat load (12700 BTU/Hour). For more complex hydraulic systems, please refer to the Technical Selection Guide in this document.*Heat Load is the amount of heat energy that the hydraulic system is introduces in to the oil and is measured as horsepower (HP)wHigh Performance Aluminum wDurable Bar & Plate ConstructionwLow Clogging, High PerformanceAir Fin DesignwStandard Sizes with SAE PortswIndustrial Powder-coat FinishwFactory Tested Prior to Delivery ACS DC-60 Cooler Mounted in a Robotic Snowplow 3'