


Harken 22mm Micro Block - 224
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Harken 22mm Micro Block - 22422mm Micro Block Low friction Micro blocks are compact and lightweight. Specifications: Sheave: 22mm 7 8in Length: 38mm 1 1 2in Weight: 14g 0. 5oz Maximum line: 6mm 1 4in Maximum working load: 91kg 200lb Breaking load: 544kg 1200lb Product : HARKEN 22MM MICRO BLOCK Manufacturer : Harken Manufacturer Part No : 224 Product : HARKEN 22MM MICRO BLOCK
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4.1 ★★★★★
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★★★★★ 5
Good for the $$$
Worked great on my Mercruiser Alpha One Gen 2. Once the bottom unit of the outdrive is off and cleaned it only takes a few minutes to install impeller, seals and housing. A very affordable alternative to taking it to the shop.
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Reviewed in the United States on September 22, 2025
★★★★★ 5
Fit perfectly and very complete set of parts
Had everything I needed plus some extra parts in the kit. I probably could have just replaced the impeller for slightly less but while everything was disassembled you might as well replace the works. Included - Water Pump Impeller, Housing, Key, Face Plate, Face Plate Gasket, O-Ring, Seal Face and Carrier Assembly Oil Seal
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Reviewed in the United States on October 28, 2025
★★★★★ 5
Water impeller kit
Worked perfectly for my ‘02 Rinker Captiva 212 with the 5.7 Mercruiser Aloha one outdrive !
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Reviewed in the United States on October 9, 2025
★★★★★ 4
Good quality, but could have used better instructions
The kit was complete, and all the components were well made. However, if you aren't somewhat mechanical, it would be fairly easy to install the gaskets and backing plate in the wrong sequence. With better instructions, this would be a 5 star plus kit.
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Reviewed in the United States on July 31, 2025
★★★★★ 5
Don't pay boat shops for over priced services!
Boat shop wanted $400 dollars for a new water pump replacement. Got this on Amazon and watched a few utube videos. Took less then 2hrs to take apart and replace. I put it in a Alpha 1 gen 2 lower. Very simple process.
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Reviewed in the United States on May 24, 2025
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