This Southern jet unit is there 178mm (7”) single stage, this is a perfect match for a large range of four cylinder engines. This unit features a very high tensile one-piece stainless-steel impeller, high quality grill with high tensile wear plate bars, high tensile fabricated bash plate, high tensile stainless-steel stater vane, well designed ducted reverse bucket, it is finished in a durable black powder coating and is equipped with the highest quality/ tolerance trim nozzle. Also has a high tensile main shaft and drive coupling, high quality SKF main bearing and a bearing housing breather. All of these high quality components add up to excellent performance and extreme durability.