# Advance HC138 Marine Gearbox

> Advance HC138 Marine Gearbox. The Advance HC138 is a medium-duty marine reduction gearbox for ship and boat propulsion.Its rugged cast-iron housing…

- URL: https://www.marine-equipment-supply.com/products/marine-gearboxes/advance-hc138-marine-gearbox/
- Category: [Marine Gearboxes](https://www.marine-equipment-supply.com/products/marine-gearboxes/)
- Brand: Advance
- Supplier: Shanghai Mars Industrial Co., Ltd. (MARS), Shanghai, China
- Price: on request — [request a quote](https://www.marine-equipment-supply.com/contact/) · WhatsApp +86 176 2154 1688 · inquiry@marine-equipment-supply.com

## Overview

The Advance HC138 is a medium-duty marine reduction gearbox for ship and boat propulsion. Its rugged cast-iron housing, precision helical gears, and multi-plate clutch transmit torque smoothly from the main diesel engine to the propeller shaft, with a maximum power input of 375 HP and a range of selectable reduction ratios. It is supplied ready for global export.

## Key selling points

- Maximum power input of 375 HP for reliable marine propulsion
- Multiple reduction ratios available (2.52 / 3.0 / 3.57 / 4.05 / 4.45)
- Heavy-duty cast-iron housing for long service life in harsh marine environments
- Precision helical gears and multi-plate clutch for smooth, reliable transmission
- Fast 7-working-day delivery with wooden-box export packing

## Technical specifications

| Parameter | Value |
| --- | --- |
| Brand | Advance |
| Model | HC138 |
| Reduction Ratios | 2.52 / 3.0 / 3.57 / 4.05 / 4.45 |
| Max Power Input | 375 HP @ 2500 rpm |
| Centre Distance | 225 mm |
| Dimensions (L×W×H) | 520 × 792 × 760 mm |
| Weight | 360 kg |
| Packing | Wooden Box |
| Delivery | 7 working days |
| Application | Marine / Ship |

## Features & highlights

- Rigid cast-iron construction resists vibration and supports high loads
- Helical gearset with thrust bearing for smooth engagement and axial-load handling
- Machined front bell housing and input flange for secure engine-side integration
- Multi-plate clutch for reliable engagement
- Lifting eyes for safe handling and installation

## Typical applications

Marine main propulsion for fishing boats, cargo ships, tug boats, and yachts, matched to the vessel's engine power and required reduction ratio.

## Customization options

Reduction ratio selection, input-speed matching, flange and coupling configurations, and OEM requirements available on request. Contact us with your engine model and vessel specifications for a tailored recommendation.

## Ordering information

Supplied in protective wooden-box packing for safe global transport. Standard delivery in 7 working days. Please confirm engine model, power, and required reduction ratio when ordering.

## FAQ

### What is the Advance HC138 Marine Gearbox used for?

Marine main propulsion for fishing boats, cargo ships, tug boats, and yachts, matched to the vessel's engine power and required reduction ratio.

### Can the Advance HC138 Marine Gearbox be customized?

Reduction ratio selection, input-speed matching, flange and coupling configurations, and OEM requirements available on request.Contact us with your engine model and vessel specifications for a tailored recommendation.

### How is it inspected, packed and shipped?

Each unit is checked against your order before dispatch, with a written outgoing-inspection report and video (machinery is run-tested). Goods are packed in export wooden-box or crate packing and shipped FOB or CIF from Shanghai; stock items ship promptly and built-to-order items typically within about 20 working days.

### How do I get a price for the Advance HC138 Marine Gearbox?

Send an inquiry with the required configuration, quantity and destination port using the form on this page, email inquiry@marine-equipment-supply.com or WhatsApp +86 176 2154 1688. We reply with a matched recommendation and quotation within 24 hours on working days.