Types of Cummins NH

The Cummins NH (Nostalgic Horsepower) was one of the early Big Cam engines, which featured a unique combustion design that made the engine more efficient and powerful. The NH was fully geared, with a full-float rear axle and a 1,000-pound torque capacity. Some of the trucks that used the Cummins NH engine include Kenworth, White, Peterbilt, International, and Mack.

Generally, in discussing the types of Cummins NH engines, we could divide them into:

Cummins NH Diesel Engines: The Cummins NH diesel engines are notable for their robustness and reliability. Designed primarily for heavy-duty applications, these engines excel in providing high torque and power outputs, making them the preferred choice for large vehicles and machinery that require consistent performance under demanding conditions. Their durability ensures that they can handle the rigors of heavy use, while their efficiency helps to minimize fuel consumption in even the toughest of tasks.
NH-220, NH-250, and NH-280: Specifically, the NH-220 Cummins engine refers a model that can produce 220 horsepower, while the NH-250 engine refers a model that can produce 250 horsepower. Generally, they are good choices for trucks driving on flat roads. The NH-280 is another model in the NH engine family, also featuring the fully geared design that helps the engine achieve a better function.

Specification and maintenance of Cummins NH

Based on the available resources, below are some specifications of the Cummins NH engine:

Model:

Overall, the Cummins NH engine model indicates the engine family from which it is derived and was designed for medium-duty trucks and buses.
Displacement:

The engine's displacement is the total volume of the engine's cylinders. For the Cummins NH, it ranged between 8.3 L and 10.8 L. As a result, engines with larger displacements typically have more power and torque.
Power rating:

The power rating of the Cummins NH engine model ranged from 195 to 335 horsepower. In that sense, higher power ratings generally indicate greater performance and acceleration.
Torque:

The torque of the Cummins NH engine model varieds dependedly, from 600 to 1,000 lb-ft. Generally, torque measures an engine's ability to produce twisting force, which affects the vehicle's towing capacity and acceleration.
Configuration:

The Cummins NH engine was a straight-six engine configuration. Generally, a straight-six engine has six cylinders arranged in a line, which is a common configuration for larger vehicles requiring greater power.

Maintenance tips

Here are some maintenance tips for Cummins NH diesel engines:

Regular oil changes:

Users should change the oil and filter at the recommended intervals to keep the engine properly lubricated and clean.
Air filter inspection and replacement:

Users should inspect the air filter regularly and replace it if it is dirty or clogged. A clean air filter allows proper airflow to the engine and improves performance.
Fuel system maintenance:

Users should use high-quality fuel and add fuel system cleaners to prevent injector clogs and maintain engine efficiency.
Cummins NH parts

When replacing engine components, users should use OEM (Original Equipment Manufacturer) or high-quality aftermarket parts to ensure proper fit and performance.
Follow the manual:

Users should follow the maintenance schedule and instructions in the owner's manual. The manual provides specific service requirements for the particular engine's model and application.

Applications of Cummins NH

Below are some common uses of the Cummins NH engine model:

Medium-duty trucks

When it comes to Medium-duty trucks with NH engines, their hauling capacity ranges from 26,000 pounds to 33,000 pounds. Therefore, they utilize the Cummins NH engine to move oversized loads. Examples of medium-duty trucks with NH engines include box trucks, buses, and cement mixers.
Heavy-duty trucks

The NH engine models with heavier displacement are common in heavy-duty trucks. The heavy-duty trucks' gross vehicle weight rating exceeds 33,000 pounds. Furthermore, NH engines that are great for use in heavy-duty trucks are designed to transport massive loads and face rugged terrains.
Construction equipment

Cummins NH engine can also be used in construction equipment. This type of equipment includes bulldozers, loaders, excavators, and skid steers. Such construction equipment usually runs on the NH engine to move large amounts of earth, do heavy lifting, and carry out other construction tasks.

How to choose Cummins NH

When selecting a Cummins NH, a few factors are crucial to ensure the right fit for specific engine applications. The goal is to match the performance and power needs of the vehicle or machinery utilizing the engine.

Engine application

This is a critical factor when choosing a Cummins NH engine. These engines were typically employed in large over-the-road trucks; therefore, if the intention is to use it in a vehicle that falls in this category, then it makes sense to settle for an NH engine. However, the Cummins NH engine is also great for marine applications. If the goal is to have an engine powering a boat, then looking for a Cummins NH marine engine is ideal.
Horsepower Requirements

Determining a specific horsepower requirement is paramount, as Cummins NH engines come in several different horsepower ratings. Ensuring the proper horsepower rating will ensure the host vehicle's functional efficiency and capability.
Availability

Please consider the availability of Cummins NH engines when making a decision. Although some NH engines are still being produced, many models have ceased production, leading to their scarcity. It is important to match one's needs to the available options to ensure the fulfillment of specific requirements.
Condition of the Engine

The overall status of the engine is also a crucial factor in deciding. Whether a person is considering a new, refurbished, or used Cummins NH engine, it is important to assess its condition to ensure it serves the intended purpose well, not only spending but also investment's peace of mind.

Cummins NH Q & A

Q: What does the NH in Cummins NH mean?

A: The name Cummins NTA engine series in which N stands for new, and T stands for turbocharged, and the letter A goes back to its original application in the truck industry. There is another similar Cummins engine called the N14.

Q: How do people tell the NH 220 from the NH 250?

A: The NH 250 has a few features that distinguish it from the NH 220, such as NH 250 cast on top of the turbo, an air-to-air intercooler located on the passenger side of the engine, and the ECU on the driver side of the engine.

Q: What is the horsepower of the Cummins NH engine?

A: Overall, the NH series of Cummins engines has different models that offer varied horsepower. For example, the NH 220 and NH 250 have 220 and 250 horsepower, respectively. Other models like NH 335 and NH 470 have horsepower ratings of 335 and 470, respectively. The NH 450 also has a 450-horsepower rating.

Q: Which types of vehicles use the Cummins NH engine?

A: The Cummins NH engine is mostly used in heavy trucks and construction vehicles that fall under the category of heavy-duty vehicles. Some examples include the following. Some models of the Kenworth truck. Some models of the Peterbilt truck. Mack construction vehicles. Unimog trucks that are specifically used for agriculture.