Oil window: The oil viewing window located on the side of the water pump iseasy to inspect and the oil level is easy to repair. High and low pressure water seal components The high and low pressure dual water seal design of the"U" type "Buna N" material enhances the performance of thewater pump and improves its service life. The plunger support guide ringensures the coaxiality of the plunger, extending the service life of the waterseal and plunger. Pump head assembly: Selected forged brass material, high strength, no porositydefects, long service life, high pressure resistance, stable operation,reinforced 6-bolt fastening, 10mm, grade 8.8. Check valve assembly: The valve cage is made of specialmaterials that are sturdy and durable. The stainless steel 303 and 404 poppetvalves and springs, as well as the brass valve seat and cover, are sturdy anddurable, extending their service life. Pommel Precision machined hard solid ceramic plunger, sturdy anddurable. Crank Axle Accurate rounded corners and process treatment ensure durabilityand service life. Oil seal and O-ring A better crankcase oil sealing system, with stainless steelsprings for oil seals and O-ring seals to ensure sufficient tension. Bearing The positioning of large-sized bearings and snap rings ensuresthe concentricity of the crankshaft connecting rod, ensuring stable operationof the water pump. Bearing Block Precision machining ensures coaxiality and concentricity. Plunger Connecting Rod The high-quality alloy connecting rod has high load strength,durability, and stable operation. Crankcase The surface of the crankcase that has been oxidized by precisioncasting is a classic streamline design.