SUZUKI WATER PUMP BODY 17450-93921

Function and technical context

The water pump body is the structural component that houses and seals the impeller of the cooling system on Suzuki DT and DF series outboard engines. Its mission is to generate the flow of seawater necessary to maintain the engine's working temperature within safe limits, channeling the fluid from the water intake to the block and cylinder head. A deteriorated pump body – with cracks, internal erosion or worn seals – directly compromises the efficiency of the cooling circuit, and can cause overheating, loss of power and serious damage to the motor. The reference 17450-93921 brings together a wide family of Suzuki part numbers and also replaces the OMC reference 5033109, making it a highly versatile part for workshops and owners of boats with these propellers.

When to replace this part?

The most common symptoms that indicate that the water pump body must be inspected or replaced are: reduction or absence of the cooling water jet through the discharge pilot ("tell-tale"), temperature alarm in the frame or the engine reaching abnormal temperatures, and unusual noises in the lower area of the propeller when starting. It is recommended to check the water pump assembly – body, impeller and seals – at each annual maintenance or every 300-400 hours of navigation, since wear on the body is usually associated with wear on the impeller. Replacing the body preventively along with the impeller kit prevents breakdowns at sea and protects higher cost components such as the block or crankshaft bearings.