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Upgrade or replace your Yamaha V6 outboard lower unit with this precision-engineered spanner-nut style gearcase — designed for 150HP to 200HP engines (1988–2012). Built to OEM standards, it offers outstanding reliability and smooth performance for both freshwater and saltwater use. Available in new or remanufactured options, this direct-fit replacement installs easily and comes backed by a 1-year warranty for complete peace of mind.
| Specification | Details |
|---|---|
| Product Name | Yamaha V6 Lower Unit |
| Horsepower Range | 150HP – 200HP |
| Year Range | 1988 – 2012 |
| Style | Spanner-Nut |
| Condition | New or Remanufactured |
| Warranty | 1 Year |
| SKU / Part Code | YA-G6-01 |
| Installation | OEM Direct Fit |
| Usage | Freshwater & Saltwater Compatible |
Choosing the right lower unit for your Yamaha outboard can make all the difference in performance and reliability. Here’s why this one stands out:
🔹 OEM-Level Precision: Engineered to match Yamaha’s factory design for seamless compatibility and reliability.
🔹 Built for Endurance: High-quality materials resist corrosion and wear — ideal for both freshwater and saltwater conditions.
🔹 Plug-and-Play Installation: Fully assembled and ready to install with no modifications required.
🔹 Performance Restored: Ensures smooth gear transitions and efficient power transfer to your propeller.
🔹 Cost-Effective & Reliable: Choose between new or remanufactured units — both backed by a 1-Year Warranty for complete peace of mind.
This lower unit fits Yamaha V6 2-stroke and 4-stroke outboards rated 150 to 200 horsepower, produced between 1988 and 2012. It’s the correct OEM-style replacement for models equipped with the spanner-nut propeller shaft design. Always verify your model number and gearcase type before ordering to ensure proper fit and alignment.
The spanner-nut style refers to the specific propeller shaft bearing retainer design used on older Yamaha V6 outboards. Unlike the later tab-washer design, this style uses a threaded spanner nut for securing the bearing housing. Choosing the correct style ensures perfect compatibility, proper gear alignment, and water-tight sealing for long-term reliability.
Yes. Both the new and remanufactured Yamaha V6 lower units are built to OEM tolerances and tested for gear engagement, oil retention, and seal integrity. The new unit uses all factory-new components, while the remanufactured version is rebuilt from OEM cores using precision-inspected parts. Each is bench-tested for performance and includes a full 1-year warranty.
No modifications are needed. This lower unit comes fully assembled as a direct-fit replacement, compatible with all OEM Yamaha seals, driveshafts, and shift shafts. Installation requires only the standard outboard lower unit tools. For optimal performance, always use marine-grade gear oil and replace the water pump impeller during reassembly.
Regular lower unit maintenance preserves gear performance and prevents costly repairs. Replace gear oil every 100 hours or annually, inspect seals and gaskets for leakage, and grease prop shafts frequently. Always flush the unit after saltwater use and check for fishing line around the propeller hub. Following these steps ensures smooth performance and prevents gear wear.
Looking for other models or gear ratios?
Browse all Yamaha Lower Units here — find compatible options for 40HP, 60HP, 115HP, 150HP, and more Yamaha outboards.
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