Description
The KANZAKI KM3P-1 Transmission is a high-precision marine gearbox engineered by Kanzaki / Yanmar Japan, known worldwide for their durable and reliable marine propulsion systems. Designed for Yanmar 3JH25A and 3JH30A engines, this gearbox offers a 2.36:1 gear ratio, ensuring smooth mechanical shifting and efficient power delivery.
This gearbox has been removed from a life boat engine and has been used very minimally, maintaining excellent mechanical condition. It is ideal for replacing worn-out gearboxes or upgrading existing marine inboard systems.
Technical Specifications:
| Specification | Details |
|---|---|
| Brand | Yanmar / Kanzaki |
| Manufacturer | Kanzaki (Japan) |
| Model | KM3P-1 |
| Manufacturer # | KM3P-1-2.36 |
| Part # | 128171-81320 |
| Condition | Used (Very good, minimal hours) |
| Compatible Engines | Yanmar 3JH25A / 3JH30A |
| Gear Ratio | 2.36:1 |
| Shift Type | Mechanical Shift |
| Product Type | Boat Transmission (0° No Down Angle) |
| Item Weight | 21.7 lbs |
| Shipping Weight | 25 lbs |
| Shipping Dimensions | 16″ × 16″ × 16″ |
| Color | Gray |
| Country of Origin | Japan |
Key Features:
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High-quality Japanese marine gearbox
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Smooth mechanical shifting and stable performance
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Designed specifically for Yanmar inboard engines
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Minimal usage — removed from a life boat, very well maintained
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Reliable 2.36:1 ratio for optimal propulsion efficiency
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Lightweight, compact, and easy to install
Applications:
✔ Yanmar 3JH25A Engines
✔ Yanmar 3JH30A Engines
✔ Mechanical Shift Marine Inboard Systems
✔ Life Boats & Rescue Boats
✔ Small Marine Vessels & Workboats
✔ Replacement Gearbox for Marine Engines
Why Choose This Kanzaki KM3P-1 Gearbox?
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Genuine Yanmar/Kanzaki unit
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Very good used condition with minimal run-hours
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High durability and long service life
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Trusted performance in marine environments
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Ready to ship with secure packing
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