Rated Power: 3.7 kW / 5.0 HP (3000 rpm); 4.0 kW / 5.4 HP (3600 rpm)
Max Power: 4.1 kW / 5.6 HP (3000 rpm); 4.4 kW / 6.0 HP (3600 rpm)
High 20:1 Compression Ratio for strong torque and fuel efficiency
296cc Displacement (Bore × Stroke: 78×62 mm) for higher output headroom
Dual-Speed Configuration (3000/3600 rpm) to match 50/60Hz systems and varied drivetrains
Manual (F) or Electric (E) Start for flexible deployment
3.5L Fuel Tank supporting extended operation
PTO Crankshaft Output for direct coupling to alternators, pumps, and compressors
Compact Size: 480×460×520 mm
Net Weight: F: 34 kg / FE: 40 kg
Lube Oil Capacity: 1.1L (SAE 10W-30 / 15W-40, above CD grade)
Fuel Type: 0# Diesel (4°C–45°C) or -10# Diesel (-5°C–4°C)
Built for higher output and longer runs, the 178F diesel engine upgrades to a 296cc displacement with a 20:1 compression ratio, a larger 3.5L fuel tank, and a generous 1.1L oil capacity. With dual-speed options (3000/3600 rpm) and manual or electric start, it's a dependable power source for mid-size generators, pumps, agricultural implements, and light industrial equipment.
178F Diesel Engine Features & Benefits
High-Efficiency Air-Cooled Powerhouse The YD178F is a versatile and durable air cooled single cylinder diesel engine that delivers exceptional performance across a 4HP to 6HP power range. Engineered for simplicity and reliability, this 178F diesel engine is designed to excel in demanding environments where liquid-cooling systems are impractical. Whether you need the robust power of a 6hp diesel engine for a generator or the compact efficiency of a 4hp diesel engine for a water pump, this model provides a scalable solution from a single, rugged platform. Its air-cooled design eliminates complex plumbing, reducing weight and maintenance for lower total cost of ownership. |
Cost-Effective and Versatile Power Solution Delivering the performance of a premium 5hp diesel engine or a 6hp diesel engine at a competitive 5hp air cooled diesel engine price, the YD178F offers outstanding value. The high 20:1 compression ratio ensures strong torque and superior fuel efficiency, making it ideal for applications like irrigation pumps, construction equipment, and portable generators. The engine's flexible 4HP-6HP output range allows it to replace multiple specialized units, simplifying your inventory and reducing capital expenditure. This versatility, combined with its proven reliability, makes it a top choice for OEMs and distributors seeking a high-value power core. |
Globally Compatible and Easy to Integrate The YD178F diesel engine is designed for global deployment with dual-speed (3000/3600 RPM) configuration, making it compatible with both 50Hz and 60Hz generator systems worldwide. This adaptability, along with optional manual or electric start, ensures seamless integration into a wide array of machinery. For applications requiring a compact air cooled single cylinder diesel engine, its standardized PTO (Power Take-Off) interface allows for direct coupling to alternators, pumps, and compressors. This plug-and-play design reduces engineering time and cost, providing a ready-to-deploy power solution that meets international standards for performance and safety. |
178F Diesel Engine Technical Specifications
| Model No | 178F 6 HP Air Cooled Single Cylinder Diesel Engine | ||
| Engine Type | Air Cooled 1-Cylinder 4-Stroke Diesel Engine | ||
| Bore*Stroke | mm | 78*62 | |
| Displacement | cc | 296 | |
| Compression Ratio | 20:01 | ||
| Rated Output | KW/HP | 3.7/5.0 | 4.0/5.4 |
| Max Output | KW/HP | 4.1/5.6 | 4.4/6.0 |
| Rotation Speed | RPM | 3000 | 3600 |
| Fuel Consumption | L/H | ||
| Fuel Type | Diesel; 0# (4℃≦AT≦45℃) or-10# (-5℃≦AT≦4℃) | ||
| Fuel Tank Capacity | L | 3.5 | |
| Lube Type | Above CD Grade or SAE10W-30, 15W-40 | ||
| Lube Capacity | L | 1.1 | |
| Starting System | F: Manual Starter, E: Electric Starter | ||
| Power-Take-Off | Crankshaft | ||
| Dimension (L×W×H) | mm | 480×460×520 | |
| Net Weight | Kgs | F:34 FE:40 | |
AT: Ambient Temperature
178F Diesel Engine Proven Performance in Real-World Applications
Portable & Standby Generators
Reliable output for residential backup, job sites, and mobile power units. The durable and efficient 178F diesel engine serves as the reliable core of these applications, providing the essential power to run generators, pumps, and other equipment across a wide range of demanding environments.
Engineering Equipment
Very suitable for powering small road cutting machines, the compact and reliable air cooled single cylinder diesel engine is the ideal prime mover. Specifically, the robust 178F diesel engine provides the necessary torque and durability to handle the rigorous demands of this application, ensuring efficient and dependable operation on construction and maintenance sites.
Industrial Tools
Suited for powering a variety of industrial equipment, the 6 hp diesel engine provides reliable performance for compressors, pressure washers, and cutting or pavement tools. Specifically, the compact and durable 178F diesel engine is engineered to deliver the necessary torque and continuous power output to drive these demanding applications efficiently, making it a preferred choice for both portable and stationary machines.
Emergency & Field Operations
Durable, transportable power for on-call maintenance and outdoor assignments. The 6hp diesel engine, specifically a robust air cooled single cylinder diesel engine, provides the ideal core for this application, delivering the reliable, high-torque performance and ease of mobility required for demanding field work and remote operations.
Tailored Solutions, Customization & Packaging
OEM/ODM Customization Available for the 178f Diesel Engine
We offer comprehensive OEM/ODM customization for the 178F diesel engine to perfectly match your product requirements. This robust air cooled single cylinder diesel engine can be tailored in the following ways:
● Color & Branding: Pantone-matched colors, decals, and nameplates.
● Starter Options: Manual (F) or Electric (E) with harness/panel integrations.
● PTO Interface: Custom shafts, keyways, tapers, and flanges per your coupling standard.
● Localization: Fuel/oil labeling, warnings, and manuals in your language.
● Accessory Kits: Air filtration, mufflers, heat shields, and wiring options to suit application and climate.
Safe Delivery, Ready to Deploy
Units of the 4hp air cooled diesel engines are packed in reinforced cartons or wooden crates, with optional steel base supports. Branded outer boxes, barcodes, and serialized labels are available for OEM programs. Documentation includes warranty card, certificate of conformity, and user manual.
When durability, efficiency, and versatility are non-negotiable, the 178F 296cc 6 HP Air Cooled Single Cylinder Diesel Engine delivers. Designed as a compact and robust power core, it excels in demanding applications. Here’s why it is the intelligent choice for your machinery.
Compact, High-Torque Powerhouse: This 6hp diesel engine packs reliable power into a compact footprint. Its 296cc displacement and air-cooled design make it an ideal, cost-effective solution for equipment like water pumps, generators, concrete mixers, and agricultural machinery where consistent torque and fuel efficiency are critical.
Built for Simplicity & Low Maintenance: The single-cylinder, air-cooled architecture ensures a rugged and straightforward design with fewer moving parts. This translates to enhanced reliability in harsh environments, easier troubleshooting, and lower long-term maintenance costs. The enlarged 1.1L oil capacity helps stabilize lubrication over long shifts, and service points are easy to access—reducing downtime and total cost of ownership.
Operational Flexibility: Designed for user convenience, the 178F diesel engine offers multiple starting options. Choose manual recoil for simplicity or electric start for convenience. This flexibility allows it to adapt to various operational setups and user preferences seamlessly.
Globally Adaptable & Easy to Integrate: Engineered for worldwide use, this 5hp diesel engine provides speed versatility. Operate it at 3000 rpm or 3600 rpm to support both 50Hz and 60Hz environments. Whether powering a generator, irrigation pump, or compressor, the dual-speed design shortens engineering time and simplifies export standardization. It is also highly customizable for OEM/ODM projects.
Factory-Direct Quality & Value: As a specialized 178F diesel engine manufacturer, YEAPOO delivers this air cooled diesel engine with the optimal balance of performance and price. You benefit from direct access to engineering support, competitive pricing without intermediary markups, and the assurance of a product built to meet consistent quality standards suitable for global markets.
FAQs About 178F Diesel Engine
Q1: What is the minimum order quantity (MOQ)?
A1: Standard MOQ is 10 units air cooled single cylinder diesel engine. Customized colors, branding, or PTO variations may require a higher MOQ depending on the project.
Q2: Which fuel should I use?
A2: Use 0# diesel for 4°C–45°C ambient or -10# diesel for -5°C–4°C to ensure cold-start reliability and stable combustion.
Q3: What is the warranty period about 178f diesel engine?
A3: 1 year or 1000 running hours (whichever comes first) covering manufacturing defects; consumables and misuse are excluded.
Q4: What are the maintenance requirements?
A4: Check/replace oil regularly (SAE 10W-30 / 15W-40, above CD grade) and keep the air filter clean. Follow the service schedule for optimal life and performance.
Q5: Can it couple directly to a generator or pump?
A5: Yes. The PTO crankshaft is compatible with common coupling standards; customized shaft or flange options are available upon request.
Q6: What are the exact power ratings of the YD178F engine, and how are the 4HP, 5HP, and 6HP ratings determined?
A6: The YD178F is a versatile single-cylinder engine designed to deliver power across a range, with its specific output being influenced by its governed operational speed. According to the product specifications, its rated power is 3.7 kW / 5.0 HP at 3000 rpm and 4.0 kW / 5.4 HP at 3600 rpm. Its maximum power reaches 4.1 kW / 5.6 HP at 3000 rpm and 4.4 kW / 6.0 HP at 3600 rpm. Therefore, the advertised "4HP, 5HP, 6HP" represents its power capability span. A 4HP application would typically run at a lower, de-rated speed for less demanding loads, while the 5HP and 6HP figures correspond to its standard and maximum outputs at the two common operating speeds, making this 6 hp diesel engine (at max output) and 5hp diesel engine (at rated output) highly adaptable.
Q7: What is the difference between the YD178F and YD178FE models, and which one should I choose?
A5: The core difference is the starting system. The YD178F model is equipped with a manual recoil starter (pull-start). The YD178FE model features an electric starter, requiring a 12V battery. The electric start model (FE) is more convenient, especially for frequent use or in applications where easy starting is critical. The trade-off is a slight increase in weight (approximately 40 kg for FE vs. 34 kg for F) and complexity. Your choice should be based on your application's requirements and user preference for convenience versus simplicity.
