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Sierra 18-3061 Neoprene Water Pump Impeller 12-Blade for Volvo Sherwood Crusader

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

18-3061
08/03/2036 12:12 PM
Sale Price

$49.71

In Stock (9)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Sierra 18-3061 is a high-quality neoprene water pump impeller designed for use on GM inboard engines equipped with V-belts, including applications from Volvo Penta, Crusader, Pleasurecraft, and Sherwood pump systems. This impeller is a critical component of the raw water cooling circuit, circulating coolant to protect the engine from overheating during operation.

Constructed from durable neoprene, this 12-blade impeller delivers reliable cooling water flow across a wide range of operating temperatures. It is engineered to meet or exceed original equipment specifications for a direct-fit replacement.

Key Features:

  • Material: Neoprene for flexibility and durability across varying water temperatures
  • Blades: 12-fin design for efficient, stable water flow
  • Outer Diameter (OD): 2.560 in. (65.2 mm)
  • Bore: 0.625 in. (15.9 mm)
  • Thickness: 1.640 in. (41.3 mm)
  • Key Drive: 0.200 in. keyed hub drive
  • Suitable for freshwater and saltwater use
  • Meets or exceeds OEM specifications

OEM Cross-Reference / Replaces:

  • Volvo Penta: 835874
  • Sherwood: 10615K
  • Jabsco: 18948-0001
  • Crusader: 20300, 20310
  • Pleasurecraft: RP061017
  • Oberdorfer: 8922
  • Mallory: 9-45708
  • GLM: 89611

Regular impeller replacement is essential preventive maintenance. A worn or damaged impeller can result in insufficient cooling flow, leading to engine overheating or debris circulating through the cooling system. It is recommended to keep a spare impeller on board at all times.

The order went smoothly and it showed up 3 days earlier!!

Great prices, items in stock

Simple and fast transaction, thank you!

good quick service

Great place, had to make return, part I ordered did not fit my vehicle

No complaints

Delivery was fast Pricing was fair Product arrived in very good condition

Part was correct and arrived on time

The box might have a part of instructions missing. That's probably not the merchant's fault. I can find instructions on the Internet, anyway

good very easy !

east to find. exactly what i need

A1

Great price

Very easy to use.

very user friendly.

Good supply and reasonable

Highly recommend ordering from this company. I was in deep search for a product that everybody else told me I wouldn't find until next year (e.g. 4 wheel parts). Autoplicity knew someone that had the product and made the transaction as seamless as possible. I know where to look for future orders. <br><br>One very happy customer!

Quick, efficient, professional

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