---
product_id: 211153928
title: "186F 9HP Diesel Engine 4 Stroke Single Cylinder 406CC Forced Air Cooling Diesel Engine for Agricultural Machinery"
brand: "lifujundong"
price: "₩1792930"
currency: KRW
in_stock: true
reviews_count: 8
category: "Li Fu Jun Dong"
url: https://www.desertcart.kr/products/211153928-186f-9hp-diesel-engine-4-stroke-single-cylinder-406cc-forced
store_origin: KR
region: South Korea
---

# Fuel-efficient ≤280g/kW·h 406cc displacement power Forced air cooling tech 186F 9HP Diesel Engine 4 Stroke Single Cylinder 406CC Forced Air Cooling Diesel Engine for Agricultural Machinery

**Brand:** lifujundong
**Price:** ₩1792930
**Availability:** ✅ In Stock

## Summary

> 🚜 Power your productivity with the 186F Diesel Engine — where efficiency meets endurance!

## Quick Answers

- **What is this?** 186F 9HP Diesel Engine 4 Stroke Single Cylinder 406CC Forced Air Cooling Diesel Engine for Agricultural Machinery by lifujundong
- **How much does it cost?** ₩1792930 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/211153928-186f-9hp-diesel-engine-4-stroke-single-cylinder-406cc-forced)

## Best For

- lifujundong enthusiasts

## Why This Product

- Trusted lifujundong brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Compatibility:** Perfect fit for micro-tillers, irrigation pumps, generators, and small tractors—your all-in-one power solution.
- • **Fuel Efficiency That Saves:** Optimized fuel system ensures lower consumption, stretching every drop of diesel.
- • **Advanced Forced Air Cooling:** Keeps your engine running cooler and longer, maximizing uptime and reliability.
- • **Durable Keyed Straight Shaft:** Precision-engineered 1" diameter shaft with 1/4" keyway for seamless equipment integration.
- • **Power-packed 406cc Displacement:** Robust 9HP output to conquer your toughest agricultural tasks with ease.

## Overview

The 186F 9HP Diesel Engine is a single-cylinder, 4-stroke, 406cc powerhouse designed for agricultural machinery. Featuring forced air cooling and a direct injection combustion system, it delivers reliable performance at 3600 rpm with optimized fuel consumption (≤280g/kW·h). Its keyed straight shaft and pressure splash oil system ensure durability and easy integration across various small equipment, making it the go-to engine for millennial professionals seeking dependable, efficient power solutions.

## Description

Specifications:Model：186FCombustion system：Direct injectionBore*stroke(mm)：86x70mmDisplacement capacity(cc)： 406ccSpeed(rpm)：3600 rpmMax.output(kw): 6.3Fuel：0#diesel oilFuel oil tank volume(L)：5.5 LFuel oil consumption rate(g/kw.h)：≤280Starting system：RecoilShaft Type: Keyed - StraightShaft Diameter: 1" Diameter, 1/4" KeywayShaft Length: 72.2mm (2-5/6" Length)Shaft I.D. Thread Size: 7/16-20UFN-2B, 20mm depthBolt Pattern: 4 BoltOil System: Pressure and SplashEngine Cooling Type: Forced Air Cooling

Review: strong engine, - 4stars cause I had to go to separate source for the electric start kit. used it to replace the original 7hp briggs& Stratton engine, doesn't even know that it's pulling a tractor and rider at half throttle.
Review: Arrived damaged, seller sent replacement parts - The package was stuck in customs for about three weeks. When the engine arrived, the carton was obviously damaged. I opened the box to find the fuel tank and throttle adjustment plate all bent. I contacted the seller and sent pictures, their response was to send replacement parts. It appears the parts were taken off an engine on the assembly line. The new fuel tank and throttle plate took two weeks to ship and two weeks in transit. I am very happy with this engine, it fired right up on the second pull (then the pull cord broke :-( ). I bought an electric start kit for it and installed it on a 1968 Sears Suburban garden tractor. The oil drain plug is a little inconvenient in my application since it's in the front. I bought a Fumoto F108SX tooless drain valve for it (M16x1.5 threads) so I wouldn't have to take the grille off to do an oil change. The engine doesn't come with any accessories since it isn't sold as an electric start unit. I also purchased a vibration sense hour meter so I can keep up with oil change intervals. I have done the first oil change, there was some debris in the oil, I think that is normal. I'll find out during the next service. I will probably buy another one of these engines in the future, hopefully the price comes down a little (I remember a few years ago, the engine was available for about the same price with electric start). The keyway on the drive shaft is 5mm, not 1/4 inch as the add says. I'm adding a picture to show that the engine does indeed have an oil pressure switch port location, it does not come with a switch. I saw a question about this in the Q&A section. I added one using one purchased from desertcart, ASIN B0BRYCK498. I have it connected into the ground wire on a large white LED (desertcart B07WRH8ZZ2). With the Key off or in a loss of pressure event, the light turns off indicating no oil pressure.

## Features

- 【PROFESSIONAL DIESEL ENGINE】4-stroke Air- Cooled Diesel Engine.Through advanced software analysis and optimization design, the reliability of diesel engine in structure and cooling is ensured. Optimize fuel system and intake and exhaust system to save energy and fuel.
- 【DIESEL ENGINE SPECIFICATIONS】Model：186F Туре：Single-cylinder, vertical, 4-stroke air- cooled diesel engine Combustion system：Direct injection Bore*stroke(mm)：86x70mm Displacement capacity(cc)： 406cc
- 【DIESEL ENGINE PARAMETER】Oil System: Pressure and Splash Engine Cooling Type: Forced Air Cooling
- 【SHAFT PARAMETER 】 Shaft Type: Keyed - Straight Shaft Diameter: 1" Diameter, 1/4" Keyway Shaft Length: 72.2mm (2-5/6" Length) Shaft I.D. Thread Size: 7/16-20UFN-2B, 20mm depth
- 【WIDE APPLICATION】It is widely used in small agricultural machinery, such as micro-tiller, pastoral management machine, irrigation and drainage machine, generator set, small transport vehicle, small walking tractor and other fields.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B088D4Z491 |
| Best Sellers Rank | #952,581 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #809 in Replacement Outdoor Power Tool Engines |
| Brand | LiFuJunDong |
| Customer Reviews | 3.6 3.6 out of 5 stars (16) |
| Date First Available | August 25, 2019 |
| Manufacturer | LiFuJunDong |
| Manufacturer Part Number | CXN001 |

## Images

![186F 9HP Diesel Engine 4 Stroke Single Cylinder 406CC Forced Air Cooling Diesel Engine for Agricultural Machinery - Image 1](https://m.media-amazon.com/images/I/612J4pvN0NL.jpg)

## Questions & Answers

**Q: Can this be used in a concrete mixing machine?**
A: My company bought about 5 of these engines and they lasted only a few weeks.

**Q: Does it rev pretty slow or is it compatible sized to gas powered engine?**
A: I put it on a wood splitter and it has plenty of power. Not sure of your question of slow? It throttled up fine. I guess go read the listing and see if the rpm it produces will work with your application. Works great on a wood splitter.

**Q: Is the crankcase or cover set up with a low oil pressure sensor port?**
A: No

**Q: Is the side left of the spindle side aready drilled and tapped to except the Electrical starter from an Yanmar diesel engine L100 series?**
A: Yes, but the flywheel does not have a ring gear.

## Customer Reviews

### ⭐⭐⭐⭐ strong engine,
*by J***D on September 3, 2021*

4stars cause I had to go to separate source for the electric start kit. used it to replace the original 7hp briggs& Stratton engine, doesn't even know that it's pulling a tractor and rider at half throttle.

### ⭐⭐⭐⭐⭐ Arrived damaged, seller sent replacement parts
*by T***0 on January 24, 2022*

The package was stuck in customs for about three weeks. When the engine arrived, the carton was obviously damaged. I opened the box to find the fuel tank and throttle adjustment plate all bent. I contacted the seller and sent pictures, their response was to send replacement parts. It appears the parts were taken off an engine on the assembly line. The new fuel tank and throttle plate took two weeks to ship and two weeks in transit. I am very happy with this engine, it fired right up on the second pull (then the pull cord broke :-( ). I bought an electric start kit for it and installed it on a 1968 Sears Suburban garden tractor. The oil drain plug is a little inconvenient in my application since it's in the front. I bought a Fumoto F108SX tooless drain valve for it (M16x1.5 threads) so I wouldn't have to take the grille off to do an oil change. The engine doesn't come with any accessories since it isn't sold as an electric start unit. I also purchased a vibration sense hour meter so I can keep up with oil change intervals. I have done the first oil change, there was some debris in the oil, I think that is normal. I'll find out during the next service. I will probably buy another one of these engines in the future, hopefully the price comes down a little (I remember a few years ago, the engine was available for about the same price with electric start). The keyway on the drive shaft is 5mm, not 1/4 inch as the add says. I'm adding a picture to show that the engine does indeed have an oil pressure switch port location, it does not come with a switch. I saw a question about this in the Q&A section. I added one using one purchased from Amazon, ASIN B0BRYCK498. I have it connected into the ground wire on a large white LED (Amazon B07WRH8ZZ2). With the Key off or in a loss of pressure event, the light turns off indicating no oil pressure.

### ⭐⭐⭐ Starts and runs good...with electric starter kit of course.
*by J***. on October 13, 2025*

Starts and runs good. 3 stars because tank mount was broken when received. Will modify rating if seller sends a new upper tank mount.

## Frequently Bought Together

- 186F 9HP Diesel Engine 4 Stroke Single Cylinder 406CC Forced Air Cooling Diesel Engine for Agricultural Machinery
- HOT SHOTS Hot Shot's Secret - HSSEDT16Z Everyday Diesel Treatment - EDT 16 oz Round - Treats up to 400 Gallons
- Shell Rotella T6 Full Synthetic Heavy Duty Engine Oil 5W-40, 55 Gallon Drum

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-19*