★★★★★ 5
OE Quality Part
Worked perfectly. Everything needed is there.
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Reviewed in the United States on April 27, 2026
GROCO 1-1/4 inch Slotted Hi Speed Thru-Hull with Nut – Bronze Marine Hardware - HSSLTH-1250-W
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
GROCO 1-1/4 inch Slotted Hi Speed Thru-Hull with Nut – Bronze Marine Hardware - HSSLTH-1250-WThe GROCO HSSLTH 1250 W is a high performance 1 1 4 inch slotted thru hull designed for marine applications. Crafted from durable C83600 bronze, this thru hull offers excellent corrosion resistance and longevity in harsh marine environments. Its slotted design facilitates easy installation and secure fitting, making it a preferred choice for boat builders and marine technicians. This model features a combination thread of 1 1 4 NPSM NPT, ensuring
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Your GROCO 1-1/4 inch Slotted Hi Speed Thru-Hull with Nut – Bronze Marine Hardware - HSSLTH-1250-W orders ship within 1-2 business days.
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- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.7 ★★★★★
Based on 2149 reviews
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Product Reviews
★★★★★ 5
10 out of 10
The must do service package. This is a "fits multiple" kit so youll have some extras. The kit also includes the lower unit gear oil seals, which is awesome. I always trust quicksilver to be durable and a great value for the money.
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Reviewed in the United States on February 23, 2026
★★★★★ 5
Recommended replacement parts
Worked as advertised, quicksilver parts for replacement on alpha drive gen 2 outdrive.
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Very complete kit
This Kit has everything you need to change your waer pump impellor. It comes with directions that are easy to follow, but there re plenty of videos available to help. The Quicksilver kit is priced well and was delivered quickly.
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Reviewed in the United States on November 13, 2025
★★★★★ 5
Perfect OEM fit
Fixed my impeller on my Mercury Salt Water 115. Best done as a two man job. Lots of videos available online .
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Reviewed in the United States on April 14, 2026
