When you need a small diesel engine that delivers big performance, the Yanmar 3TNV76 diesel engine is hard to beat. This three-cylinder workhorse is used in all sorts of applications, ranging from mini excavators to industrial generators, worldwide. Backed by Yanmar’s 101-year legacy of reliability, this engine combines small size with high power.

When looking to source engines for your range of equipment or improve your machinery, it is important to know the 3TNV76 engine specifications to make a better-informed purchase. This guide explains all the details you need to know about this engine, its specifications, features, uses, real-world performance, and the reasons it continues to be the preferred choice of OEMs and equipment manufacturers around the world. By the end, you’ll have a clear picture of whether this engine fits your sourcing needs. Let’s get into it.

What Is the Yanmar 3TNV76 Diesel Engine?

The Yanmar 3TNV76 diesel engine is a vertical, inline three-cylinder diesel engine built for industrial use. It is part of Yanmar’s renowned TNV series, which is built on reliability, fuel efficiency, and emissions reduction.

Its relatively simple design keeps maintenance costs low, thanks to indirect injection and natural aspiration. The 3TNV76 sits in the sweet spot for light- to medium-duty industrial machinery with a displacement of approximately 1.116 liters. It is compact enough to fit in a small piece of equipment but strong enough to do strenuous work every day.

This Yanmar industrial diesel engine is used by manufacturers in the construction, agricultural, and power generation industries due to its favorable combination of size, power, and durability.

Yanmar 3TNV76 Engine Specifications

A quick overview of the most important engine specs of the 3TNV76 core engine for buyers and equipment manufacturers.

Specification	Detail
Engine Type	Vertical, inline, 3-cylinder, 4-cycle diesel
Combustion System	Indirect injection
Aspiration	Natural
Bore x Stroke	76 mm x 82 mm
Displacement	1.116 litres
Maximum Output	Approx. 18.9 kW to 22.4 kW (about 25 to 30 hp), depending on configuration
Rated Speed	Up to 3000 rpm
Cooling System	Liquid, water cooled
Starting System	Electric, 12 volt
Dry Weight	Approx. 110 kg to 158 kg, depending on variant

The actual output, weight, and emissions compliance may be slightly different depending on the variant (CSA, NNS, GGE) and the local emissions requirements that apply.

Available Variants

Yanmar offers a number of variants of the 3TNV76 for various markets and emission standards. Newer common-rail versions deliver Final Tier 4 and EU Stage V compliance, while the CSA variant is geared for Tier 3 and EU Stage IIIA compliance. Some variants are air-cooled to make them easier to install, and others offer full liquid cooling for more consistent performance when under heavy load. By identifying the variant your machine is using, you can avoid compliance problems and order the right parts the first time.

Key Features That Set the 3TNV76 Apart

The Yanmar 3TNV76 diesel engine is incredible for a lot of reasons. These are the best features, according to buyers.

• Space-Saving and Compact Design: Compact and easy to fit within machinery with limited space, but still retains power.
• Quick Start-ups in Colder Weather: Easy start-ups when the engine is cold, thanks to indirect injection and a powerful starter motor.
• Optimized Combustion Chamber and Fuel Injection Precision: Also meets the strict emission limits, including EU Stage V in many models.
• Industrial Strength Durability: Improved block cooling, stiffer pistons, and closer tolerances enable sustained industrial use.
• Easy and affordable maintenance: Filters can be easily accessed and maintained, which helps to save time and cost.

Applications of the Yanmar 3TNV76 Diesel Engine

The engine is characterized by its compact size and high torque. These features have contributed to its popularity in different sectors. Here are some of the typical uses of the 3TNV76 engine.

• Mini excavators as well as other small construction machines.
• Industrial generators and standby power systems
• Agricultural machinery like rice harvesting machines and seeders
• Water pumps used for irrigation and draining
• Air compressors at construction sites.
• Forklifts and other warehousing equipment

Benefits of Choosing the 3TNV76 for Your Equipment

Choosing the appropriate engine can affect engine performance, downtime, and expenses. Let’s explore the benefits that many OEMs and fleet operators are considering when selecting this small diesel engine for construction equipment and beyond.

1. Fuel Efficiency: This is done in order to achieve a powerful output with a lessened fuel consumption per hour.
2. Parts Availability: Parts are readily available almost anywhere in the world, and service support is available for decades of industrial use.
3. Proven Decades of Use in Demanding Environments: Long Track Record.
4. Balanced cylinder design: vibes and performance are minimized under load.
5. Fit for export or emissions regulations: The engine meets major global emissions regulations and is a safer choice for export equipment or equipment that has emissions regulations.
6. Resale Value: Equipment that is designed around an engine that is well supported, such as the 3TNV76, has a better chance of retaining value in the used equipment market.

Industry Trends Shaping Compact Diesel Engines

The demand for compact, fuel-efficient diesel engines is rising with the growing need for smaller, more versatile machines in construction and agriculture. Even in the smaller engine classes, stricter EU, North American, and Asian emission regulations are encouraging manufacturers to transition to cleaner combustion systems and electronic control of fuel injection. Meanwhile, OEMs want to be able to supply engines that have long parts-availability windows because equipment often has long life cycles — frequently exceeding a decade. The Yanmar 3TNV76 diesel engine is a perfect fit for this move, as it provides a proven platform that manufacturers can use to develop new models while maintaining compliance across different emission tiers.

Important Considerations Before You Buy

When ordering a 3TNV76 engine or parts for one already in use, there are a number of things to consider. First, make sure you have the correct variant code, as output, cooling, and emissions ratings vary across variants. Second, check the emissions compliance requirements for the target region, especially if the equipment will be exported or operated in regulated markets. Third, use a supplier who can confirm parts compatibility — because there may be small differences between sub-models that can impact fit. This helps prevent costly delays and ensures your machinery performs as expected from day one.

Maintenance Tips to Extend Engine Life

With the 3TNV76, the little routine care yields major benefits. These are important factors to consider.

• Replace engine oil and oil filter every 250 hours of runtime.
• Change fuel filter at 500 hours to ensure clean fuel delivery.
• Regularly inspect the air filter, particularly in dusty work areas.
• Check coolant levels regularly for overheating.
• Use only approved or quality-tested replacement parts to ensure engine life.

Conclusion

The Yanmar 3TNV76 is a high fuel-efficient, reliable, and compact diesel engine. It is commonly found in construction machinery, generators, and agricultural machinery where durability and stable output are essential.

Crafted for challenging conditions, the 3TNV76 offers outstanding power and efficiency. It is known for its durability and long-lasting performance, making it a preferred option for OEMs, fleet managers, and purchasing departments looking for reliable power solutions.

For professional help and true and compatible parts, you can turn to 4tnvengine (XiaMenJin HuaSen Propulsion System) for all your diesel engine needs in industrial, agricultural, and power generation. Talk to us today and discover the perfect engine solution for your equipment requirements.

FAQs

What is the displacement of the Yanmar 3TNV76 engine?

The engine displacement of the Yanmar 3TNV76 is a total of approximately 1. 116 liters shared among its three cylinders, which is quite a respectable power-to-size ratio in its segment.

What equipment uses the Yanmar 3TNV76 diesel engine?

The main applications of this engine worldwide include working on small excavators, agricultural machinery, compressors, generators, and pumps.

How much power does the 3TNV76 engine produce?

Power output ranges from around 18.9 kW (25 hp) for a standard engine configuration to 22.4 kW (30 hp) for high-output configurations of the different variants.

How often should I change the oil in a 3TNV76 engine?

One of the best times for most operators to perform oil and oil filter changes is at the 250-hour interval, as it is a good way to keep the engine running smoothly and will a lot extend its life.