# Yuchai YC4D120-21 Diesel Engine — 90 kW

> Yuchai YC4D120-21 Diesel Engine — 90 kW. The Yuchai YC4D120-21 is a compact, turbocharged, water-cooled inline-4 diesel engine rated at 90 kW / 2800 rpm…

- URL: https://www.marine-equipment-supply.com/products/diesel-engines/yuchai-yc4d120-21-diesel-engine-90-kw/
- Category: [Diesel Engines](https://www.marine-equipment-supply.com/products/diesel-engines/)
- Brand: Yuchai
- 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 Yuchai YC4D120-21 is a compact, turbocharged, water-cooled inline-4 diesel engine rated at 90 kW / 2800 rpm, built for construction machinery. Its durable cast block, mechanical-pump fuel system, and compact footprint deliver balanced power and responsive torque for demanding job-site conditions. It is supplied ready for global export.

## Key selling points

- 90 kW at 2800 rpm with 350 N·m torque in a compact 4-cylinder package
- Turbocharged inline-4 with rigid cast-iron block
- Reliable mechanical-pump fuel system for tough operating conditions
- Compact layout for easy installation and integration
- Euro 2 emission level; 1 Year warranty with test report

## Technical specifications

| Parameter | Value |
| --- | --- |
| Brand | Yuchai |
| Model | YC4D120-21 |
| Cylinders | Inline 4 |
| Rated Power | 90 kW @ 2800 rpm |
| Displacement | 4 L |
| Torque | 350 N·m @ 1600–1900 rpm |
| Bore / Stroke | 108 / 115 mm |
| Compression Ratio | 17.5:1 |
| Aspiration | Turbocharged |
| Cooling | Water-Cooled |
| Fuel System | Mechanical Pump |
| Emission Standard | Euro 2 |
| Weight | 1200 kg |
| Application | Construction Machinery |

## Features & highlights

- Rigid inline-4 cast-iron block for high strength and long service life
- Turbocharger for optimized forced induction and stronger power output
- Mechanical-pump fuel system for proven, dependable fuel delivery
- Rear flywheel housing for stable, reliable power take-off
- Front-pulley drive; compact layout for easy installation and maintenance

## Typical applications

Power for wheel loaders, excavators, construction machinery, and generator drives.

## Customization options

Power rating, radiator/cooling configuration, gearbox/flywheel-housing matching, and OEM requirements available on request. Contact us with your application for a tailored recommendation.

## Ordering information

Supplied in sturdy export-grade packing for safe global transport. Warranty: 1 Year. Please confirm application and power requirements when ordering.

## FAQ

### What is the Yuchai YC4D120-21 Diesel Engine used for?

Power for wheel loaders, excavators, construction machinery, and generator drives.

### Can the Yuchai YC4D120-21 Diesel Engine be customized?

Power rating, radiator/cooling configuration, gearbox/flywheel-housing matching, and OEM requirements available on request.Contact us with your application 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 Yuchai YC4D120-21 Diesel Engine?

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.