Sherwood Pump

Sherwood Pump: A Trusted Name in Marine Water Management

For decades, Sherwood Pump has been one of the most recognized and respected names in marine water pump engineering. Now operating under the Pentair family of brands, Sherwood carries forward a legacy of precision-engineered pumping solutions designed specifically for the demanding environment of marine engines. From recreational boaters to commercial mariners, Sherwood's products are engineered to keep cooling water moving reliably — because on the water, dependable engine cooling is not optional.

Raw Water Pumps: The Heart of the Lineup

The cornerstone of Sherwood's catalog is its lineup of water pumps and components. These raw water pumps are designed to draw cooling water from outside the vessel and circulate it through the engine's heat exchanger or directly through the block. Sherwood pumps are built with robust bronze housings and close tolerances that make them a go-to choice for engine rebuilds and replacements across a wide range of marine applications. Whether you're servicing an inboard, stern drive, or auxiliary diesel, there is very likely a Sherwood pump engineered for your application.

Engine Cooling Pumps & Accessories

Beyond the core raw water pump, Sherwood offers a full suite of engine cooling pumps and accessories to keep your cooling system running at peak efficiency. These include complete pump assemblies and the mounting hardware and fittings needed for a thorough, professional installation. Proper engine cooling is essential to preventing overheating, a leading cause of serious marine engine damage, and Sherwood's components are built to OEM standards so boaters can trust their fit and function.

Impellers: The Wear Item You Shouldn't Overlook

One of the most critical — and most frequently serviced — components in any raw water pump is the impeller. Sherwood's impellers are manufactured to precise dimensions and made from flexible, water-lubricating compounds that deliver consistent water flow even as they flex thousands of times per minute. Marine technicians and experienced boaters know that impellers should be inspected seasonally and replaced at the first sign of cracking or wear. Stocking a Sherwood impeller as a spare is considered standard practice for offshore boating.

Sea Strainers: Protecting Your Pump from Debris

A pump is only as reliable as the water supply feeding it. Sherwood's sea strainers are designed to filter out seaweed, sediment, and debris before they can reach the impeller and cause damage. Installing a quality sea strainer upstream of your raw water pump is one of the simplest and most effective ways to extend pump life — and Sherwood engineers these strainers to complement their pump systems seamlessly.

Flexible Impeller Engine Driven Pumps & Parts

Rounding out the Sherwood lineup are flexible impeller engine driven pumps, impellers, and parts. These versatile pumps are used in a wide range of marine and industrial fluid transfer applications, and Sherwood's engineering ensures that even high-cycle applications are handled with durability and consistency. Replacement parts availability makes Sherwood a practical choice for anyone who wants to maintain their equipment over the long term rather than replace entire assemblies.

Why Choose Sherwood Pump?

• Decades of marine pump engineering expertise
• Backed by Pentair's global manufacturing and quality standards
• Broad application coverage for inboard, stern drive, and diesel marine engines
• OEM-quality fit for reliable installation and performance
• Strong availability of replacement impellers, seals, and service parts