--- product_id: 139594289 title: "Sierra 18-3575 Marine Circulating Water Pump" brand: "sierra international" price: "€ 329.47" currency: EUR in_stock: true reviews_count: 9 url: https://www.desertcart.it/products/139594289-sierra-18-3575-marine-circulating-water-pump store_origin: IT region: Italy --- # Efficient Water Circulation Bi-Directional Flow Fits GM 4 & 6 Cylinders Sierra 18-3575 Marine Circulating Water Pump **Brand:** sierra international **Price:** € 329.47 **Availability:** ✅ In Stock ## Summary > 🌊 Keep Your Engine Cool, Stay Ahead of the Wave! ## Quick Answers - **What is this?** Sierra 18-3575 Marine Circulating Water Pump by sierra international - **How much does it cost?** € 329.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/139594289-sierra-18-3575-marine-circulating-water-pump) ## Best For - sierra international enthusiasts ## Why This Product - Trusted sierra international brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Easy Installation:** User-friendly design for quick and hassle-free setup. - • **Durable Construction:** Built to withstand marine environments, ensuring longevity. - • **Dynamic Flow Control:** Experience bi-directional water flow for optimal performance. - • **Unmatched Versatility:** Seamlessly fits GM 4-cylinder and in-line 6-cylinder engines. - • **Engineered for Efficiency:** Designed to enhance water circulation, keeping your engine cool. ## Overview The Sierra 18-3575 Marine Circulating Water Pump is a high-performance solution designed for GM 4-cylinder and in-line 6-cylinder engines, featuring bi-directional flow for enhanced efficiency and durability in marine applications. ## Description Sierra 18-3575 Bi-Directional Circulating Water Pump for Mercury, OMC, VolvoDETAILS • Bi-Directional Circulating Water Pump for Mercury, OMC, Volvo • Replaces: Mercury 65142A1 and OMC 984360, 3854017, 380640, 986779 and Volvo Penta 3854017 • For: GM Inline (4 & 6 Cylinder) • Fits: Volvo Penta 3.0L, 4 cyl. Engines ABOUT SIERRA Sierra is dedicated to protecting you and your investment. For 50 years Sierra, one of the most trusted names in the marine industry, has proudly been offering high quality engine and drive parts. Their products meet or exceed the original equipment part it replaces and are engineered to meet todays high horsepower engine demands while withstanding the harsh marine environment. Sierra's CUSTOMER SATISFACTION WARRANTY All Sierra parts qualify for Sierra's Industry Leading Customer Satisfaction Warranty. Sierra warrants its products to be free of defects in workmanship and materials for the useful life of the product. If a Sierra product fails to comply with the warranty, Sierra will repair or replace the defective product free of charge. The warranty is subject to additional terms, conditions and limitations. You can view Sierra's full warranty located above in the Technical Specification Section. ## Features - Bi-Directional - Fits : GM 4 cyl. & in-line 6 cyl. ## Images ![Sierra 18-3575 Marine Circulating Water Pump - Image 1](https://m.media-amazon.com/images/I/41L0RH+wgOL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐ 4.0 out of 5 stars Four Stars *by R***D on Reviewed in the United States on July 28, 2014* i like ### ⭐⭐⭐ 3.0 out of 5 stars My worst fear came true the pulley rubbed when installed but ... *by A***L on Reviewed in the United States on August 7, 2015* My worst fear came true the pulley rubbed when installed but it's a simple fix find longer bolts add lock washers behind the pulley although the. 5/16x24 hex bolts aren't common I found allen bolts instead. ### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars Will buy from again if I need more boat parts *by B***S on Reviewed in the United States on December 28, 2018* My last pump started leaking. Purchased from these guys cause they had it in stock for a much cheaper price. Installed easily and fits perfect. Works great too. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.it/products/139594289-sierra-18-3575-marine-circulating-water-pump](https://www.desertcart.it/products/139594289-sierra-18-3575-marine-circulating-water-pump) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-05*