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Sherwood Pump 12665-SHW Major Repair Kit for G-9901 G-9902 G-9903 Raw Water Pumps

Manufacturer

Sherwood Pump

<p>Sherwood Pump's history dates back to 1903, when William Sherwood and his business partner David Buick operated a copper brass plumbing business. After parting ways, Sherwood developed the business into a foundry and machine shop, sought out by Henry Ford and the Dodge brothers for Detroit's expanding auto-driven industries. In the 1920s, entrepreneur Chris Smith's company, Chris-Craft, incorporated William Sherwood's plumbing expertise to develop the first seawater pumps for marine inboard engines.</p> <h3>A Legacy of Marine Engineering Excellence</h3> <p>During World War II, a Chris-Craft personnel carrier equipped with a Sherwood pump was the first Allied landing craft to hit Normandy beaches on June 6, 1944. During this period, Sherwood supplied pumps to marine engines from Buda, Caterpillar, Cummins, Gray, Hercules, and Packard. Following WWII, as the pleasure boating industry grew, Sherwood evolved to accommodate the exacting cooling pump needs of this expanding market, keeping pace with new engines from Chrysler, Ford, and GM through relationships with Chris-Craft, Chrysler Marine, Crusader, and OMC.</p> <h3>Industry-Leading Cooling Solutions</h3> <p>Today, Sherwood remains the trusted choice for <a href="/7562-sherwood-pump-engine-cooling-pumps-accessories-200368">engine cooling pumps and accessories</a> across both pleasure and commercial marine applications. The seawater pump serves as the heart of the marine engine, supplying continuous water flow to maintain consistent engine temperatures—critical because the number one reason for premature engine wear is overheating. Now part of Pentair, the Sherwood brand has become the seawater pump of choice for many of the world's most prestigious engine manufacturers.</p> <p>Sherwood's comprehensive line of <a href="/7562-sherwood-pump-engine-water-pump-2208">engine water pumps</a> features multiple mounting configurations including flange-mounted, pulley-driven, and crankshaft-mounted designs. These pumps are available for a wide range of applications varying in type, flow requirements, speed, size, and weight. Each pump is engineered to meet the specific cooling demands of modern marine engines, whether for propulsion or generator sets.</p> <h3>Genuine Replacement Parts and Service Components</h3> <p>Maintaining peak engine performance requires regular service intervals and quality components. Sherwood's <a href="/7562-sherwood-pump-impellers-200573">impellers</a> are designed as precision-engineered wear components that should be replaced annually for optimal engine health. Genuine Sherwood replacement parts are often copied, but never duplicated. The company offers complete repair and service kits containing all necessary gaskets, seals, and wear plates to restore pumps to original specifications.</p> <p>For system protection, Sherwood manufactures <a href="/7562-sherwood-pump-sea-strainers-200906">sea strainers</a> that prevent debris from damaging downstream cooling system components. These strainers are designed to be durable and easy to clean, featuring non-corrosive construction that ensures long service life. Available in multiple port sizes, they provide essential filtration for raw water intake systems.</p> <p>Sherwood also offers specialized <a href="/7562-sherwood-pump-automatic-transmission-overhaul-kit-10998">automatic transmission overhaul kits</a> for marine drive systems, rounding out their comprehensive portfolio of marine power transmission components. With over a century of manufacturing expertise and a reputation built on reliability, Sherwood Pump continues to set the standard for marine engine cooling solutions.</p>

Part Number

12665-SHW
07/12/2036 11:45 PM
Sale Price

$250.52

In Stock (8)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Sherwood Pump 12665-SHW is a comprehensive major repair kit designed to fully rebuild a wide range of Sherwood marine raw water pumps. This kit supplies virtually all internal components needed to restore pump performance, making it the ideal solution for a thorough overhaul rather than a basic impeller swap.

Kit Includes:

  • Impeller (1-1/4")
  • 2 Bearings
  • Mechanical Seal
  • Wear Plate
  • Cam
  • Cam Screw & Cam Screw Washer
  • Gasket
  • O-Ring
  • 5 Snap Rings / Retaining Rings
  • Key
  • Washer

Compatible Sherwood Pump Models:

  • G-9901, G-9902, G-9903
  • G1, G2, G15, G20, G21, G22
  • G30-2, G30-2B, G95-1
  • H10, J70, K75, K75B

This kit also replaces Sherwood part numbers 12400 and 13966. Cross-reference part numbers include 762-12665 and SHE 12665. For a minor repair, see Sherwood kit #23979, which covers impeller, seal, and O-ring only for these same pump models.

Keeping a major repair kit on board or in your service inventory ensures you can restore full cooling flow quickly, protecting your inboard engine from overheating. Always refer to the Sherwood G-series technical manual for torque specs and step-by-step rebuild procedures.

Tank arrived on time and undamaged.

Came quick, no hassle

The item I bought was one to replace something I thought I had accidentally thrown away. A couple days after the boatplicity item arrived I located the like item I already had. I initiated the return process with boatplicity, as I no longer had need of the item. I completed the return request stuff and it said I would be contacted to continue the process but no one has contacted me.

The online purchasing system is very efficient. I had an issue with the delivery times, and the company quickly corrected the situation to my satisfaction.

I'm waiting on my refund. I was not happy that I couldn't talk to a real person regarding my return and my repurchase of the correct prop that I needed. So , if I get my total refund without a huge restocking fee(since the prop is new in original packaging and I bought another prop that is the correct size) then I will be extremely satisfied.

Great pricing and super fast service!! Thank you!

I received exactly what I ordered and shipping was on time

Convenient

Product delivered as expected and in perfect condition.

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