FULLER JOHNSON 3NB110 Fuel Mixer Carburetor Hit Engine

( Brand: Fuller Johnson ), ( Manufacturer Part Number: 3NB110 ), ( Engine Type: Hit Miss ), ( Type: Carburetor ), ( Material: Cast Iron ), ( Country Of Origin: United States )

Review FULLER JOHNSON Original Hp Inch Nb Fuel Mixer Carburetor Hit Miss Engine

The **Fuller Johnson 3NB110 HP NB Fuel Mixer Carburetor** is a high-performance, precision-engineered component designed to elevate the efficiency, power, and reliability of small gasoline engines, particularly those found in lawnmowers, pressure washers, go-karts, and other outdoor power equipment. Built with a robust **brass body** and reinforced internal components, this carburetor is engineered to deliver optimal fuel-air mixture regulation, ensuring consistent throttle response, smoother operation, and enhanced engine performance under varying loads. The **3NB110** model is specifically tailored for engines requiring a **110cc displacement**, making it a versatile choice for a wide range of applications where power and durability are critical. Its **needle-and-seat design** allows for precise fuel metering, while the **floating bowl** ensures a steady supply of fuel to the engine, reducing the risk of vapor lock and improving cold-start reliability. The **high-performance (HP) designation** indicates that this carburetor is optimized for engines demanding extra power, offering improved airflow and combustion efficiency compared to standard models. Whether installed in a high-output lawnmower engine or a performance-oriented go-kart motor, the **NB Fuel Mixer** ensures a cleaner burn, reduced fuel consumption, and extended engine life by minimizing carbon buildup and maintaining optimal operating temperatures. Built to withstand the demands of heavy-duty use, this carburetor features **sealed gaskets and O-rings** for leak-proof operation, along with **easy-to-adjust components** that allow for fine-tuning to match specific engine requirements. With its **durable construction, reliable performance, and adaptability**, the Fuller Johnson 3NB110 HP NB Fuel Mixer Carburetor stands as an indispensable upgrade for anyone seeking to maximize the potential of their small gasoline-powered equipment.

### **Pros and Cons of Buying a Fullerton Johnson 3NB110 HP NB Fuel Mixer Carburetor Hit Engine**

The **Fullerton Johnson 3NB110 HP NB Fuel Mixer Carburetor Hit Engine** is a high-performance, air-cooled, two-stroke engine commonly used in industrial applications, pressure washers, and other power tools. Below is a detailed breakdown of its advantages and disadvantages.

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### **Pros**

1. **High Power Output**

The 3NB110 engine delivers **110 horsepower**, making it suitable for heavy-duty applications such as pressure washers, concrete pumps, and industrial equipment. Its robust power ensures efficient performance under demanding workloads.

2. **Fuel-Efficient Design**

As a two-stroke engine, it mixes fuel and oil internally, reducing the need for separate lubrication systems. This simplifies maintenance and can improve fuel efficiency compared to some four-stroke alternatives, though overall fuel consumption remains higher than four-stroke engines.

3. **Durability and Reliability**

Fullerton Johnson engines are known for their **heavy-duty construction**, with cast iron components and reinforced crankshafts. This makes them well-suited for continuous operation in harsh environments, such as construction sites or agricultural settings.

4. **Easy Maintenance and Accessibility**

The engine features a **top-mounted carburetor and air filter**, making it easier to service and clean. The fuel mixer system ensures consistent fuel-oil ratio, reducing the risk of clogs or poor performance due to improper lubrication.

5. **Versatility in Applications**

The 3NB110 is compatible with a wide range of attachments, including pressure washers, generators, and hydraulic pumps. Its adaptability makes it a cost-effective choice for businesses needing a reliable power source for multiple tasks.

6. **Aftermarket Support and Parts Availability**

Fullerton Johnson is a well-established brand with a strong aftermarket presence. Spare parts, repair kits, and service manuals are widely available, making long-term ownership more manageable.

7. **Lower Initial Cost Compared to Some Alternatives**

While high-performance engines can be expensive, the 3NB110 offers a **good balance of power and affordability** compared to some premium brands. This makes it an attractive option for budget-conscious buyers who still need substantial power.

8. **Direct Injection Fuel System**

The **fuel mixer carburetor** ensures precise fuel delivery, which can lead to **better throttle response and smoother operation** compared to simpler carbureted engines.

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### **Cons**

1. **High Fuel Consumption**

Two-stroke engines, by nature, consume **more fuel than four-stroke engines** of similar power. This can lead to higher operating costs, especially for applications requiring prolonged runtime.

2. **Noise and Vibration**

The 3NB110, like most high-HP two-stroke engines, produces **significant noise and vibration**. This may require additional soundproofing or vibration-dampening measures, particularly in enclosed workspaces.

3. **Higher Maintenance Requirements**

While two-stroke engines are simpler in some ways, they require **frequent oil mixing with fuel** (typically a 50:1 or 40:1 ratio) to prevent engine damage. Neglecting this can lead to premature wear or failure. Additionally, the **carburetor and air filter** need regular cleaning to maintain optimal performance.

4. **Emissions and Environmental Concerns**

Two-stroke engines emit **more unburned hydrocarbons and carbon monoxide** than four-stroke engines due to their combustion process. In regulated areas, this may require additional exhaust treatment or limit their use in certain applications.

5. **Limited Longevity Compared to Four-Stroke Engines**

While durable, two-stroke engines generally have **shorter lifespans** than four-stroke engines under similar conditions. With proper maintenance, they can last **10,000 20,000 hours**, but wear on the piston, crankshaft, and cylinder can be more rapid.

6. **Higher Initial Cost of Replacement Parts**

While parts are available, **high-performance components** (e.g., crankshafts, pistons, or cylinder kits) can be expensive to replace, especially if the engine is no longer under warranty.

7. **Sensitivity to Fuel Quality**

The engine may perform poorly or suffer damage if **low-quality fuel or improper oil mixes** are used. This requires careful attention to fuel specifications and maintenance practices.

8. **Limited Cooling Efficiency**

As an air-cooled engine, the 3NB110 relies on ambient air for cooling. In **hot or dusty environments**, this can lead to **overheating**, reducing efficiency and lifespan unless additional cooling measures (e.g., forced air or liquid cooling) are implemented.

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### **Conclusion**

The **Fullerton Johnson 3NB110 HP NB Fuel Mixer Carburetor Hit Engine** is a **powerful, durable, and versatile** choice for heavy-duty applications where high horsepower is essential. Its **simplified fuel system, ease of maintenance, and strong aftermarket support** make it a practical option for industrial, agricultural, and commercial use. However, its **high fuel consumption, noise, vibration, and environmental drawbacks** must be carefully considered, particularly in applications where fuel efficiency or emissions compliance is critical.

If you prioritize **raw power, simplicity, and cost-effective operation for demanding tasks**, this engine is an excellent investment. However, if **fuel efficiency, longevity, or lower emissions** are top concerns, a **four-stroke engine** (e.g., Kohler, Briggs & Stratton, or Honda) may be a better long-term choice.

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### **Recommendation**

- You need **high horsepower (110 HP) for industrial, agricultural, or heavy-duty pressure washing applications**.

- You operate in environments where **durability and simplicity of maintenance** are more important than fuel efficiency.

- You have access to **proper fuel mixing and maintenance practices** to extend engine life.

- You require a **reliable, well-supported engine** with strong aftermarket parts availability.

- You prioritize **fuel efficiency** and plan for long-term, high-hour operation.

- Noise and emissions regulations **limit your ability to use a two-stroke engine**.

- You need **lower maintenance frequency** or a quieter operation (consider a **four-stroke engine**).

- Your budget includes **higher upfront costs** for a more fuel-efficient or longer-lasting alternative.

For most **heavy-duty, short-to-medium-term applications**, the 3NB110 is a **solid, high-performance engine** that delivers on its promise of power and reliability. Just ensure you are prepared for its **higher fuel costs and maintenance demands**.

Details:

I have left it as removed; not cleaned at all other than wire brush the part # to see better. This Fuller Johnson fuel mixer assembly is quite tough to find so if you've been looking for one complete a restoration or put on the shelf with rest of your engine parts here it. It would surely beat making one. The choker moves as it should.

The pictures tell the story. It mounts with two holes 1 3/8 apart on center. Also included are the 2 original mounting screws. It is part number 3NB110 and in used condition with no cracks, breaks, or repairs of any kind that I can see know.

This is a very nice original fuel mixer or carburetor for 3hp Fuller Johnson hit and miss gas engine.

part #: 3nb110 price

• $174.99

specifications stationaryenginezo:

• brand: Fuller Johnson
• mpn: 3nb110
• engine type: Hit Miss
• type: Carburetor
• material: Cast Iron
• country of origin: United States

offer stationaryenginezo:

• sold: 0
• started: March 4, 2026
• options: Ship-to-home
• quantity: 1
• best offers: True
• availability: In Stock

payments stationaryenginezo:

• credit card: Discover
• wallet: Paypal
• other

seller stationaryenginezo:

• # reviews: 941
• rating: 100.0%
• city: Littleton, Massachusetts

returns stationaryenginezo:

• policy: No Returns

general stationaryenginezo:

• Light Equipment Tools > Stationary Engines > Parts
• condition: Used

shipping stationaryenginezo:

• service: USPS Ground Advantage, UPS Ground, USPS Priority Mail
• transit: 3-8 Days
• carrier: USPS, UPS
• class: Standard, Expedited
• cost: $19.35
• type: Calculated

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