Kaiyueda supply
Commerce editorial system
  • Home
  • Products
  • Journal
  • About Us
  • Contact Us
Get a Quote
  1. Home
  2. Products
  3. 66T-45300-11-4D Lower Unit Assy Long For Yamaha Outboard Engine Spare Parts 40HP 2-Stroke Boat
66t
PROPELLER

66T-45300-11-4D Lower Unit Assy Long For Yamaha Outboard Engine Spare Parts 40HP 2-Stroke Boat

Complete Lower Unit Assembly for Yamaha 40HP 2-Stroke Outboards The 66T-45300-11-4D Lower Unit Assy Long is a complete replacement gearcase assembly designed for Yamaha 40HP 2-stroke outboard engines. Engineered for reliable power transmission and smooth operation, this long-shaft lower unit provides excellent durability and performance in both freshwater and saltwater environments.

66T-45300-11-4D Lower Unit Assy Long Product Description
Suitable for replacing damaged, worn, or corroded lower units, this assembly helps restore your outboard's propulsion efficiency and overall reliability. Compatible replacement numbers include 66T-45300-11-4D and 66T-45300-13-4D. It is commonly used on Yamaha 40HP 2-stroke models such as E40XMH, 40XWT, 40XWH, 40XW, E40XWH, E40XW, 40XMH, and E40XWT.

Features

✅ OEM Standard Replacement Quality ✅ Complete Long Shaft Lower Unit Assembly ✅ Precision Gear Transmission System ✅ Corrosion-Resistant Marine-Grade Materials ✅ Smooth Shifting and Reliable Performance ✅ Direct Replacement for Yamaha 40HP 2-Stroke Models

Benefits

  • Restores original propulsion performance
  • Reduces downtime and maintenance costs
  • Improves gear engagement and shifting response
  • Designed for demanding marine environments
  • Ideal for commercial fishing boats and recreational vessels

Specifications

  • Part Number: 66T-45300-11-4D
  • Product Name: Lower Unit Assembly Long
  • Engine Type: Yamaha 40HP 2-Stroke
  • Shaft Type: Long Shaft
  • Application: Outboard Engine
  • Condition: New
  • Warranty: 1 Year (supplier dependent)

Continue browsing

More products from the catalog

Pair it with other pieces from the same collection or routine.

682-43311-07-4D
PROPELLER

682-43311-07-4D Swivel Bracket for Yamaha 9.9HP 15HP 2-Stroke Outboard Motor

The 682-43311-07-4D Swivel Bracket is a critical structural component responsible for holding your outboard engine securely while allowing smooth left-to-right steering pivoting. Specifically tailored for Yamaha 9.9HP and 15

View product
yamaha30hp
PROPELLER

Yamaha 30HP Lower Unit Assembly 69P-45300-01-4D

Premium 69P-45300-01-4D Lower Unit Assembly for Yamaha 30HP 2-Stroke Outboard | Short Shaft (S) Gearcase Assy

View product
6F5
PROPELLER

Premium 6B4-45300-11-4D Lower Unit Assembly for Yamaha 15HP 2-Stroke Outboard Motor

The 6B4-45300-11-4D Lower Unit Assembly is specifically engineered for the legendary Yamaha 15HP 2-Stroke Enduro series (6B4/E15D models). Unlike standard leisure-grade gearboxes, this commercial-grade assembly is built to withstand continuous, high-intensity operations in challenging marine environments

View product
Every goods

OEM & SEABOND

Trusted OEM Standard Marine Parts Supplier For Global Markets.

InstagramFacebookTictok
Shop
ProductsNew arrivals
Company
About usContact us

© 2026 Northstar. All rights reserved.

Ships from China.