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Yanmar 3TNB78 Engine Overhaul Kit – Complete Rebuild Set


Complete overhaul rebuild kit for Yanmar 3TNB78 engine. Includes liners, pistons, bearings, gaskets, and valves. Designed for long-lasting durability and OEM-level performance.

$797.48

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Overhaul Rebuild Kit for Yanmar 3TNB78 Engine

High-Performance Complete Engine Rebuild Kit

Upgrade or restore your Yanmar 3TNB78 engine with this complete overhaul rebuild kit, engineered for durability and OEM-level precision. Each part ensures top-tier reliability, making it ideal for full engine restoration and maintenance.


⚙️ Application

Fit for Engine Model:
Yanmar 3TNB78

This kit provides all essential components for rebuilding your Yanmar engine, ensuring improved compression, reduced oil leakage, and long-term efficiency.


📦 Kit Contents

  • 1 Set of Overhaul Gasket Kit

  • 3 Cylinder Liners (Semi-finished – machining required)

  • 3 Pistons, STD

  • 3 Piston Pins

  • 6 Snap Rings

  • 3 Rod Bushings

  • Set Rings for 3 Pistons, STD

  • 1 Set of Main Bearings

  • 1 Set of Rod Bearings

  • 1 Set of Thrust Bearings

  • 3 Intake Valves

  • 3 Exhaust Valves

  • 6 Valve Guides

  • 3 Intake Valve Seats

  • 3 Exhaust Valve Seats

Note: Cylinder liners are semi-finished and require machining before installation.


🔧 Key Features

  • Premium-quality components designed for Yanmar 3TNB78 engines

  • OEM-standard precision for optimal fit and function

  • Improves engine performance and fuel efficiency

  • Extends engine lifespan and reliability

  • Ideal for full engine rebuilds or major repairs

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