D186F 8.6HP
Compact, Efficient & Stage V Compliant Power
The D186F is a robust, portable vertical diesel engine engineered for high-performance efficiency. Featuring a die-cast aluminum block and direct injection technology, it delivers exceptional power-to-weight ratios while meeting strict EU Stage V emission standards.
- ⚡ Rating Output: 6.3 kW (8.6 HP) @ 3600 RPM
- 🚀 Max Output: 6.9 kW (9.4 HP) @ 3600 RPM
- 💨 Displacement: 406 cm³ (Single Cylinder)
- 🌱 Compliance: Full EU Stage V Certified
- ⚙️ Injection: High-Efficiency Direct Injection
- ⛽ Fuel Consumption: ≤ 271.5 g/kW·h
- ⚖️ Dry Weight: 47 kg (Recoil) / 52 kg (Electric)
Ideal For:
Power Tools • Small Generators • Water Pumps • Construction & Gardening Equipment
✓ 18 Months Warranty ✓ Low Noise & Vibration ✓ Portable & Compact
Specs
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Engine Configuration
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| Vertical 4 stroke air cooled diesel engine | • | |
| Anticlockwise rotation (PTO side) | • | |
| Electric starting and/or recoil starting | • | |
| Forced air-cooling by flywheel fan | • | |
| Iron air shroud | • | |
| Iron fuel tank | • | |
| In-tank pick-up mesh fuel strainer | • | |
| In-tank fuel filter | • | |
| Fuel cock | • | |
| Fuel tank drain plug | • | |
| Cyclonic dry or oil-bath air cleaner | • | |
| Muffler with guard | • | |
| Manual speed and stop control panel | • | |
| Forced lubrication with oil pump | • | |
| Mesh oil strainer | • | |
| Oil dipsticks on both sides for easy checks | • | |
| Oil drain plug | • | |
| Internal dynamic balancer | • | |
| Die-cast aluminum alloy engine block with integrated boron iron cylinder liner | • | |
| Die-cast aluminum alloy cylinder head | • | |
| Built-in rigid feet | • | |
| Top lifting eye | • | |
| Owner’s manual | • | |
| Spare parts catalog | • | |
| 18 months warranty | • | |
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Technical Features
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| Cylinder | 1 | |
| Bore | mm | 86 |
| Stroke | mm | 70 |
| Engine displacement | cm³ | 406 |
| Injection system | Direct Injection | |
| Compression ratio | 19:1 | |
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Performance
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| Emission compliance | EU STAGE V | |
| Rating (3000rpm) | kW/PS | 5.7 / 7.7 |
| Max (3000rpm) | kW/PS | 6.27 / 8.52 |
| Rating (3600rpm) | kW/PS | 6.3 / 8.6 |
| Max (3600rpm) | kW/PS | 6.9 / 9.38 |
| Max torque | Nm@rpm | ≥18.7 @ ≤2880 |
| Min idling | rpm | ≤1800 |
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Service Features
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| Fuel type | 0#, -10#, -35# | |
| Fuel tank capacity | Liter | 5.5 |
| Fuel consumption (3000rpm) | g/kW.h | ≤271.5 |
| Fuel consumption (3600rpm) | g/kW.h | ≤280 |
| Lubricating oil capacity | Liter | 1.65 |
| Lubricating oil type | SAE 10W-30, 15W-40, API CF+ | |
| Lubricating oil sump capacity | Liter | 2.5 |
| Lubricating oil consumption | g/kW·h | ≤4 |
| Lubricating oil change interval | hr | 100** |
| Oil filter clean interval | hr | 100** |
| Dry air cleaner change interval | hr | 200** |
| Valve adjustment interval | hr | 500 |
| Starting motor capacity | 12V 1.4kW | |
| Charging dynamo output | 18V AC | |
| Charging voltage regulator | 13.5V DC 8.3A 112W | |
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Physical characteristics
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| Net dimensions | mm | 328.8 x 460 x 495 |
| Dry weight w/ recoil starter | kg | 47 |
| Dry weight w/ electric starter | kg | 52 |
| Ambient operating temps | °C | -10 to +50 |
| Gradeability (intermittent -30 min) | deg | 30 |
| Gradeability (peak value -1 min) | deg | 35 |
Features
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Compact, Powerful & Cost-effective
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| Lightweight, portable design |
| High power-to-weight ratio |
| Fits confined spaces |
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Easy Operation & Low Maintenance
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| Die-cast aluminum block |
| Durable iron cylinder liner |
| Efficient heat dissipation |
| Extended operational lifespan |
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Fuel Efficient & Environment-friendly
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| Direct injection technology |
| Reduced CO2 & clean exhaust |
| EU Stage V compliant |
| Lower operating costs |
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Low Vibration & Noise
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| Precision balancer mechanism |
| Counteracted piston forces |
| Enhanced operating comfort |
Frequently Asked Questions
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Is the D186F engine easy to start in cold weather?
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| Yes. It features an integrated decompression system for smooth ignition. For electric-start models, it provides effortless starting down to -10°C. For recoil models, we recommend using SAE 10W-30 synthetic oil, which ensures better fluidity and easier starting in lower temperatures. |
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Why is EU Stage V compliance important for the D186F?
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| EU Stage V (Regulation 2016/1628) represents the strictest emission standards for non-road engines. Compliance means significantly reduced NOx and particulate matter emissions, ensuring the engine is environmentally safe and fully legal for use in regulated urban zones and sensitive work environments across the EU. |
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What is the maintenance schedule for the D186F?
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Is the D186F suitable for high-vibration equipment?
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| Yes. The D186F is equipped with an internal dynamic balancer mechanism that actively counteracts piston forces. This significantly mitigates vibration, protecting the integrity of the attached machinery (such as floor saws or compactors) and enhancing operator comfort during long shifts. |
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What fuel types are compatible with this engine?
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| The engine is highly versatile and supports 0# (summer), -10#, and -35# (cold climate) diesel. We strongly advise using high-quality, clean diesel to prevent clogging the integrated in-tank mesh strainer and the primary fuel filter, thereby protecting the longevity of the direct injection system. |
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Why use an aluminum block with a boron iron liner?
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| This hybrid engineering offers the best of both worlds: the lightweight portability of a die-cast aluminum engine block for easy transport, combined with the extreme wear resistance of an integrated boron-iron cylinder liner, ensuring the engine lasts as long as a traditional heavy-duty iron unit. |
