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Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
  • Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced
Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced

Used Yamaha 150–200 HP 25″ (X-Long) Lower Unit – Fits 1984–2007 – OEM – Standard Rotation – Fully Serviced

$999.00

Used OEM Yamaha 150–200 HP 25″ 2-Stroke Lower Unit (1984–2007)

Condition: Used OEM Yamaha lower unit – fully serviced, inspected, and ready to run. This is a previously installed original Yamaha gearcase, not new and not aftermarket.

This is a fully serviced OEM Yamaha 150–200 HP 2-stroke lower unit with a 25″ X-long shaft. It fits Yamaha 150, 175, and 200 HP 2-stroke outboards from 1984–2007 that use the 25″ midsection.

Key Features

  • Used OEM Yamaha gearcase (not aftermarket)
  • 25″ (X-long) shaft
  • Standard rotation (right-hand)
  • 2.00:1 gear ratio (confirmed)
  • New water pump impeller installed
  • Fresh gear lube – ready to bolt on

Fitment Specifications

Brand Yamaha
Engine Family 150–200 HP 2-Stroke (V6)
Model Years 1984–2007
Shaft Length 25″ (X-Long)
Rotation Standard / Right-hand
Gear Ratio 2.00:1 (confirmed)
Stroke Type 2-Stroke
Driveshaft Spline 15 spline
Prop Shaft Spline 13 spline
Includes Driveshaft, shift shaft, gearcase housing

Compatible With

This lower unit is compatible with many Yamaha 2-stroke V6 models, including:

  • Yamaha 150 HP (1984–2007) – 25″ shaft
  • Yamaha 175 HP (1984–2007) – 25″ shaft
  • Yamaha 200 HP (1984–2007) – 25″ shaft
  • Yamaha 150TX / 150TL / 150 OX66 25″
  • Yamaha 175TX / 175TL 25″
  • Yamaha 200TX / 200TL / 200 OX66 25″

If your current gearcase is an OEM Yamaha 150–200 HP 2-stroke V6 with a 25″ midsection and standard rotation, this unit is very likely a direct bolt-on replacement.

Not Compatible With

  • 20″ or 15″ shaft Yamaha models
  • Yamaha F150 / F200 4-stroke models
  • Yamaha 115 HP or 225+ HP engines
  • Counter-rotation (left-hand) gearcases
  • Later 4-stroke redesigned lower units (2010+)

Condition Details

  • Used OEM gearcase – inspected, cleaned, and ready to run
  • New water pump impeller installed
  • Fresh gear lube added
  • Skeg and housing in good overall condition (see detailed photos for any cosmetic wear)
  • Driveshaft and prop shaft spin true with no obvious damage
  • Normal cosmetic wear from use (scratches, paint wear, etc.) – see close-up photos

Fitment Guarantee & Returns

We stand behind our fitment. If this lower unit does not fit your Yamaha 150–200 HP 2-stroke within the stated year range and shaft length, you can return it for a refund. If you are unsure, contact us with your model and serial number and we will confirm fitment before you order.

  • Returns Accepted: Yes
  • Return Window: 30 days (Fitment Guarantee)
  • Condition for Return: Part must be uninstalled and in original condition
  • Buyer Remorse Returns: Accepted with buyer-paid return shipping + 15% restocking fee
  • Installed Parts: Not eligible for return
  • Defective / Damaged on Arrival (DOA): 7-day DOA guarantee – full refund or replacement
  • Incorrect Listing Details: Seller pays return shipping
  • Fitment Guarantee: Full refund if part does not match stated fitment

Shipping & Processing

  • Processing Time: 2–3 business days
  • Standard Shipping: UPS Ground – $89 flat rate (continental U.S.)
  • Expedited Shipping: 2-day air available at checkout for an additional fee
  • Local Pickup: Available by appointment

Why Choose an OEM Yamaha Lower Unit?

OEM Yamaha gearcases are built with higher quality materials, tighter tolerances, and better reliability than most aftermarket units. If you want factory-level performance without paying $3,000–$4,000 for a new OEM lower unit, a fully serviced used OEM case like this is the best value option.

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