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Sierra 118-3571 Water Pump Housing Kit for Mercury MerCruiser

Manufacturer

Sierra

<p>For nearly six decades, Sierra has established itself as one of the marine industry's most trusted names in aftermarket engine and drive parts. Founded as a specialized marine parts manufacturer, Sierra has grown into a comprehensive supplier of replacement components, instrumentation, and accessories for both recreational and commercial boating applications. Operating from their 300,000-square-foot distribution center in Litchfield, Illinois, Sierra serves boat owners and marine technicians worldwide with an extensive catalog of parts engineered specifically for the harsh saltwater environment.</p><h3>Marine Engine Excellence</h3><p>Sierra's reputation was built on delivering precision-engineered internal engine components and drive system parts that meet or exceed OEM specifications. Their <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> provide critical sealing solutions for inboard and outboard motors, while their <a href="/7570-sierra-engine-complete-assembly-15341">engine complete assemblies</a> offer comprehensive replacement options for major overhauls. Each component undergoes rigorous testing to ensure reliability in demanding marine conditions, from corrosion resistance to temperature cycling performance.</p><h3>Instrumentation and Monitoring Systems</h3><p>Accurate instrumentation is essential for boat operators to monitor engine health and prevent costly breakdowns on the water. Sierra's comprehensive line of <a href="/7570-sierra-gauges-200483">gauges</a> includes everything from fuel pressure and temperature indicators to voltmeters and trim gauges, all designed with marine-grade materials that withstand vibration, moisture, and UV exposure. Their <a href="/7570-sierra-tachometer-gauge-1488">tachometer gauges</a> deliver precise RPM readings critical for optimizing engine performance and fuel efficiency. Supporting these instruments, Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> ensure proper signal conditioning and accurate readings across various sensor types and engine configurations.</p><h3>Expanded Product Portfolio</h3><p>In 2022, Sierra significantly broadened its scope beyond traditional marine engine parts to encompass a wider range of boating accessories and even outdoor power equipment components. This strategic expansion brought established marine brands like Shields and Moeller under the Sierra umbrella, creating a one-stop resource for marine maintenance and replacement parts. The company now offers fuel systems, electrical components, battery charging solutions, and NMEA electronics alongside their traditional engine parts lineup.</p><h3>Quality Backed by Industry-Leading Warranties</h3><p>What sets Sierra apart in the crowded aftermarket marine parts market is their commitment to standing behind every component they manufacture. Their warranty coverage extends beyond simple part replacement—it includes shop labor, haul-out fees, towing charges, and related incidental costs should a warrantied part fail. This comprehensive protection reflects the company's confidence in their manufacturing processes and quality control standards. For boat owners facing repairs far from shore or mechanics working on customer vessels, this peace of mind is invaluable. Whether you're maintaining an outboard motor, rebuilding an inboard engine, or upgrading your boat's instrumentation, Sierra's decades of marine industry experience and commitment to quality make them a reliable choice for keeping your vessel running at peak performance.</p>

Part Number

118-3571
06/01/2036 3:49 AM
Sale Price

$83.89

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 118-3571 Water Pump Housing Kit is a comprehensive repair solution designed for Mercury MerCruiser stern drive and Mercury Marine V-6 outboard engines. This premium aftermarket kit provides all the essential components needed to restore proper water circulation and prevent engine overheating.

Kit Includes:

  • 18-7420 O-Ring for secure sealing
  • 18-2566 Impeller Gasket
  • 18-2564 Impeller Gasket
  • 18-2599 Face Seal and Installation Tool

Key Features:

  • Direct replacement for Mercury Marine 817275A1
  • Designed for MerCruiser stern drives with serial numbers 0D469859 through 0L100040 and up (1990-1998)
  • Manufactured from high-quality rubber compounds, stainless steel, and composite materials for marine durability
  • Meets or exceeds OEM specifications for reliable performance
  • Interchangeable with GLM 12415, Mallory 9-48314, and Mercury 817275A1

Regular water pump maintenance is critical to prevent catastrophic engine failure. Sierra marine parts are engineered to deliver optimal temperature regulation and long-lasting reliability in harsh saltwater and freshwater environments.

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A1

Best product with best price only at THmotorsports.com

Shopping was easy thanks!!!

great product and service

Great service

Everything went well. I'm not sure why a blower fan would be made with any metal that could corrode and yet that's what happened to the old one that is NOT that old.

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