My Account
Shopping Cart

Quicksilver 8M0139997 Seawater Pump Kit with Air Fittings

Manufacturer

Quicksilver

<h3>Quicksilver: The Marine Enthusiast&apos;s Trusted OEM Brand</h3><p>For boaters who refuse to compromise on quality, <strong>Quicksilver</strong> has been the benchmark for marine parts, accessories, and engine care products since 1950. Based in Fond du Lac, Wisconsin, Quicksilver operates as the parts and accessories brand of Mercury Marine — and that heritage is central to everything it makes. As the only marine aftermarket brand manufactured and recommended by an original-equipment manufacturer, Quicksilver brings factory-level engineering directly to boat owners, professional technicians, and weekend warriors alike.</p><p>What sets Quicksilver apart from generic aftermarket suppliers is its direct lineage to the engineers who designed the engines in the first place. Every component is engineered, tested, and manufactured with the same exacting standards as the original equipment it replaces. The result is a product line that fits right the first time and delivers the reliability boaters depend on — whether they&apos;re navigating calm inland lakes or pushing through demanding saltwater conditions.</p><p>Quicksilver&apos;s catalog spans more than 40,000 parts across 12 product lines, covering outboard and sterndrive engines from Mercury, Mariner, Yamaha, Honda, Evinrude, Johnson, Suzuki, and more. Among the most critical components in that lineup are Quicksilver Fuel Pumps, which are built to deliver factory fit and consistent fuel delivery across a wide range of outboard applications. Reliable fuel delivery is the foundation of engine performance, and Quicksilver&apos;s fuel system components are engineered to handle the demanding conditions of marine use — including compatibility with current fuel formulations.</p><p>Beyond fuel systems, Quicksilver is a go-to source for Propeller Parts &amp; Accessories that help boaters maintain and optimize their propulsion systems. From hub kits that protect both prop and gearcase to installation hardware and prop tools, these components are designed to the same tolerances as the drives they support. Proper propeller maintenance is one of the most impactful things a boat owner can do for performance, efficiency, and engine longevity — and Quicksilver makes that job straightforward.</p><p>The brand&apos;s commitment extends across lubricants, impellers, thermostats, anodes, fuel filters, oil filters, maintenance kits, and complete service packages — all engineered for the marine environment and tested to meet or exceed the standards of major engine manufacturers. Whether you&apos;re performing routine seasonal maintenance or tackling a more involved repair, Quicksilver provides the parts that restore your engine to peak operating condition.</p><ul style="list-style:disc"><li>OEM-backed engineering from Mercury Marine</li><li>Compatible with Mercury, Yamaha, Honda, Evinrude, Johnson, Suzuki, and Mariner engines</li><li>Over 40,000 parts spanning 12 product lines</li><li>Formulated and tested for freshwater and saltwater environments</li><li>Trusted by DIY boaters and professional marine technicians since 1950</li></ul><p>When reliability on the water is non-negotiable, Quicksilver delivers the peace of mind that only a true OEM-backed brand can provide.</p>

Part Number

8M0139997
09/12/2036 9:29 AM
Sale Price

$1,098.58

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Quicksilver 8M0139997 is a genuine OEM seawater pump kit designed specifically for MerCruiser high-performance marine engines. This raw water circulation pump is a critical cooling system component that draws seawater through the engine to maintain optimal operating temperatures in inboard and sterndrive applications.

Key Features:

  • Genuine Mercury Marine OEM part - factory original equipment quality
  • Equipped with integrated air fittings for cooling system air purging
  • Updated design with red hub "shorty" impeller and overmolded inner wear plate
  • Serpentine belt driven with side-mount configuration
  • Includes all necessary gaskets and seals for complete installation
  • Air fitting valves available in 90-degree or straight orientation configurations
  • Pulley not included - sold separately

Engine Compatibility:

  • MerCruiser 8.1L (496 cubic inch) GM Magnum engines
  • 496 MAG, MAG HO, and MAG MIE models
  • Also compatible with 4.3L, 5.0L, 5.7L, 6.2L, and 8.2L MPI engines
  • MerCruiser Racing 377, 520, and 540 engine models with ECM 555

Cross-Reference Part Numbers:

This pump supersedes and replaces Mercury part numbers 8M0137217, 8M0137218, 8M0139996, 46-8M0122658, 46-862914T05, 46-862914T12, and 46-8M0118069. When ordering replacement pulleys, consider Mercury part numbers 8M0150724 or 8M0220214 depending on your specific engine application.

This complete seawater pump kit ensures reliable engine cooling performance and is backed by Mercury Marine's quality standards. Professional installation is recommended to ensure proper sealing and correct belt tension.

Pretty awesome, said they were on back order and I wouldn&#039;t get them for 12 days. They shipped to my house in 4 days total so definitely gotta pass the torch to THMotorsports 10/10!

Good transaction

good service - helpful staff - good prices

Good website

Excellent experience

Had exactly the part I needed, and with fast shipping options.

Great

Easy shopping, for parts needed.

.

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