My Account
Shopping Cart

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

Manufacturer

Sierra

<h3>Sierra: Six Decades of Marine Aftermarket Excellence</h3><p><strong>Sierra</strong> has spent nearly 60 years earning its reputation as one of the most trusted names in the marine aftermarket industry. Originally focused on engine and drive components for boats, the brand has grown into a comprehensive source for nearly everything a boater needs to keep their vessel running at its best — from precision instrumentation to complete engine rebuild hardware.</p><p>Now operating as a brand of Dometic, Sierra manages global aftermarket distribution from a 300,000 sq. ft. facility in Litchfield, Illinois. The Sierra brand today encompasses not only its flagship marine parts line but also well-established marine names like Shields and Moeller, offering boaters a broader catalog than ever before. Whether you own an outboard, inboard, or sterndrive, Sierra's engineering team designs products to meet or exceed OEM specifications.</p><h3>Precision Instrumentation You Can Trust on the Water</h3><p>One of Sierra's most recognized product areas is its marine instrumentation lineup. The brand's <a href="/7570-sierra-gauge-set-1480">gauge sets</a> cover everything from classic analog instrument clusters to advanced digital multi-function displays. Sierra offers packages suited to outboards, sterndrives, and gasoline-powered inboards, with options ranging from coordinated analog kits in styles like Arctic, Eclipse, and Amega to modern touchscreen solutions like the R3 multi-function gauge. Features such as scratch-resistant domed glass lenses, silicone-dampened pointers, and perimeter backlighting make these instruments highly readable in all conditions.</p><p>Behind every accurate gauge reading is a properly calibrated sending circuit. Sierra's <a href="/7570-sierra-gauge-resistor-47908">gauge resistors</a> are a critical part of that chain, ensuring the signals from sensors and sending units are correctly interpreted by your instruments. These components are built to marine-grade standards to resist moisture, vibration, and corrosion — the realities of life on the water.</p><h3>Engine Internals Built to OEM Standards</h3><p>Sierra's history in marine power is perhaps best demonstrated by its deep catalog of engine components. The brand's <a href="/7570-sierra-engine-gasket-set-5404">engine gasket sets</a> cover a wide range of outboard and inboard applications and are engineered to deliver reliable seals in the demanding thermal and chemical environment of a marine engine. For boaters performing seasonal overhauls, top-end rebuilds, or full engine restorations, Sierra gasket kits are a go-to resource trusted by professional marine technicians and DIY boaters alike.</p><h3>A Complete Marine Parts Partner</h3><p>Beyond instrumentation and engine internals, Sierra's catalog spans fuel systems, electrical supplies, steering components, shore power, and more — all covered by what the brand calls an industry-leading warranty. Sierra also maintains a comprehensive parts-finder tool that enables cross-referencing with OEM part numbers from major manufacturers including Mercury, Yamaha, Suzuki, Volvo Penta, and others, making it straightforward to find the right replacement part for virtually any application.</p>

Part Number

18-3061
09/12/2036 11:18 AM
Sale Price

$49.71

In Stock (9)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
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

So far G2G.

All good

Convenient Amazon checkout

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy