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Sierra 18-3216 Impeller Kit for MerCruiser Stern Drives

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

118-3216
06/03/2036 12:40 AM
Sale Price

$40.11

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Usually delivered within 2 days

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Product Details

The Sierra 18-3216 Water Pump Impeller Kit is a premium-quality aftermarket replacement designed specifically for MerCruiser stern drive engines. This complete kit provides all the essential components needed to service your raw water pump, ensuring optimal cooling system performance and reliable engine operation.

Key Features:

  • Engineered to meet or exceed OEM specifications for quality and performance
  • Constructed from durable neoprene rubber compound for enhanced flexibility and long-lasting performance
  • Precision-molded and tested for proper bonding and reliability
  • Designed to withstand the harsh marine environment and high-horsepower engine demands
  • Complete kit includes impeller and necessary gaskets for proper installation

Compatibility:

  • MerCruiser 7.4L MIE MPI (LH) Gen VI GM 454 V8 (Serial Numbers 0F820104 through 0K999999, 1996-1997)
  • MerCruiser 7.4L TBI MIE (LH) Gen VI GM 454 V8 (Serial Numbers 0F874815 through 0K999999, 1996-1997)
  • MerCruiser 8.2L MIE MPI (LH) Gen VI GM 502 V8 (Serial Numbers 0F819620 through 0K999999, 1996-1997)

Replaces: Mercury Marine OEM part number 47-59362A4

Sierra has been a trusted name in the marine industry for over 50 years, supplying high-quality engine and drive parts to OEM manufacturers and boat builders. Regular impeller replacement is essential maintenance, typically recommended annually or every 100 hours of operation to prevent overheating and ensure your engine's cooling system functions properly.

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