My Account
Shopping Cart

Quicksilver 9148T85 Complete Lower Unit Gearcase Assembly 2.5L V6 25" 1.87:1

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

9148T85
09/11/2036 11:10 AM
Sale Price

$2,643.33

2 left at this price

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 9148T85 is a complete OEM lower unit gearcase assembly designed for Mercury V6 2-stroke outboard motors ranging from 135 to 200 horsepower. This genuine Mercury Marine replacement part delivers factory-level precision and reliability for 2.5L engines.

Key Specifications:

  • Gear ratio: 1.87:1 for optimal performance and fuel efficiency
  • Shaft length: 25 inches (extra long shaft configuration)
  • Standard right-hand rotation for most applications
  • Compatible with EFI, DFI, and OptiMax fuel systems
  • Pinion teeth: 15
  • Black anodized finish for corrosion resistance

Features and Benefits:

  • Complete assembly includes all internal gears, bearings, seals, and housing components
  • OEM quality ensures precise fit and long-lasting durability in harsh marine environments
  • Designed specifically for Mercury 2.5L V6 2-stroke engines (135, 150, 175, and 200 HP models)
  • Direct replacement for maintaining original equipment performance
  • Backed by Mercury Marine engineering and quality standards

This lower unit assembly is engineered to deliver reliable power transfer from the engine to the propeller while withstanding the demanding conditions of saltwater and freshwater use. Quicksilver parts are manufactured by Mercury Marine to exact OEM specifications, ensuring compatibility and performance that matches or exceeds the original equipment installed on your outboard motor.

Thanks

It would have been better if you listed the dimensions so hopefully it fits

quick and easy

None

Good service

NA

Part arrived on time. Happy customer

Easy as can be. Hopefully everything goes a smooth with the delivery.

Blah

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