High quality AGM (Absorbed Glass Mat) sealed batteries of the WestCo Platinum Series. Maintenance free. No liquid. Vibration and heat resistant and a very low self discharge rate. Will out-power virtually all conventional flooded lead-acid and gel batteries of identical dimensions. Dimensions: Length 147.5mm X Width 84mm X Height 149.3mm. OEM replacement reference 65948-00B, 66000206.