CMP O/B & I/O Cooling/Water Pumps
CMP CMYHP200300KITA Yamaha High Performance Water Pump Impeller Kit 200-300 HP
CMP Marine Cooling & Water Pumps for Outboard and I/O Engines
When it comes to keeping your marine engine running safely on the water, few components are as critical as the cooling water pump. A marine circulating water pump functions much like a heart in the body — it moves coolant through the engine's internal passages, absorbing heat and carrying it away so temperatures stay within safe limits. For outboard and inboard/outboard (I/O) applications especially, a properly functioning pump is the first line of defense against catastrophic overheating.
Originally a foundry in Vancouver, BC, in the early 1900s, CMP Group has evolved from serving the plumbing and forestry industries into a globally operating manufacturer with facilities in Canada, the United States, Italy, and China, offering diverse marine products to military, commercial, and recreational marine markets. That deep manufacturing heritage translates directly into the precision and durability that boaters depend on in cooling system components.
With comprehensive capabilities in die-casting, CNC machining, metal fabrication, plastics extrusion, and roto-molding, CMP Group produces and sources over 10,000 products for military, commercial, and recreational marine markets. This breadth of in-house manufacturing expertise means CMP's O/B & I/O cooling and water pumps are built to exacting standards, benefiting from the same quality controls that govern their corrosion protection, anchoring, and steering product lines.
Why CMP Stands Out in Marine Cooling
Each brand under the CMP umbrella is united by a commitment to innovation, quality, and environmentally sustainable solutions. For boaters shopping cooling components, this means receiving a part that is engineered to perform reliably across a wide range of engine types and operating conditions — whether you run a small single outboard or a larger stern-drive configuration.
Boat engine water pumps are not one-size-fits-all. Flow rate, pressure, and physical configuration vary depending on engine size and design — a single small outboard has very different cooling requirements than a twin-diesel inboard installation, making correct pump selection essential. CMP's experience spanning a product range that extends from marine corrosion, dock products, and anchoring solutions to steering and controls gives them an integrated understanding of how marine systems interact — invaluable context when engineering a cooling pump that must perform reliably in harsh saltwater and freshwater environments alike.
When the pump or impeller begins to wear, cooling performance can drop quickly, making regular inspection and replacement an important part of outboard maintenance. Choosing a manufacturer like CMP — backed by a journey from a modest local foundry to an international leader in the marine industry — gives you confidence that replacement parts are built to last. Explore the full CMP brand catalog to discover the complete range of marine products they offer, or browse the O/B & I/O Cooling/Water Pumps category to find the right pump for your specific engine application.