
7C7872 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $60.00 | Condition is Used, Caterpillar 3116 3126 Marine Diesel Engine Line 7C7872, shipping cost = $11.55 | 98.9% |

The Caterpillar 7C78 series marine diesel engines, specifically the 7C7872 3116 3126 model, is a powerful and efficient solution for marine propulsion and generator applications. This engine is part of Caterpillar's extensive marine power product line and is known for its reliability, durability, and advanced technology.
The 7C7872 is a 12-cylinder, in-line, naturally aspirated diesel engine that delivers an impressive power output of up to 1,925 bhp at 1,800 rpm. It has a displacement of 64.5 liters (3,991 cubic inches) and is designed to meet the US EPA Tier 3 emissions regulations. This engine is suitable for a wide range of marine applications, including commercial vessels, workboats, and pleasure yachts.
The 7C7872 marine diesel engine features Caterpillar's latest engine technologies, such as Common Rail System (CRS) fuel injection, Exhaust Gas Recirculation (EGR), and Selective Catalytic Reduction (SCR) systems. These technologies help to reduce emissions while improving fuel efficiency and power output. The engine also has a modern electronic control system that monitors and manages engine performance, providing efficient and reliable operation.
The engine block is made of high-strength cast iron, and the cylinder liners are made of forged chrome steel. The pistons are made of aluminum alloy, and the connecting rods are made of forged steel. The crankshaft is made of high-strength forged steel and is supported by seven main bearings and two thrust bearings. The engine also features a wet-type, full-flow, and continuously-lubricated system that ensures long-lasting and reliable operation.
The 7C7872 marine diesel engine is available in various configurations, including inboard, outboard, and genset applications. It can be coupled with various gearboxes and propulsion systems to meet specific customer requirements. The engine is also available with various options and accessories, such as exhaust gas aftertreatment systems, fuel filters, and engine monitoring systems.
In summary, the Caterpillar 7C7872 3116 3126 marine diesel engine is a powerful, efficient, and reliable solution for marine propulsion and generator applications. It features advanced technologies that help to reduce emissions while improving fuel efficiency and power output. The engine is designed to meet the US EPA Tier 3 emissions regulations and is suitable for a wide range of marine applications. With its robust construction, modern electronic control system, and various configurations and options, the 7C7872 marine diesel engine is a smart investment for any marine operator.
The Caterpillar 7C78 series marine diesel engines, specifically models 3116 and 3126, are known for their durability, reliability, and robust power output. However, like any machinery, they come with their own set of advantages and disadvantages.
Advantages:1. Powerful: These engines offer high power output with excellent fuel efficiency, making them suitable for various marine applications, including commercial fishing vessels, workboats, and yachts.
2. Durable: Caterpillar engines are renowned for their durability and longevity. The 7C78 series marine diesel engines are no exception. They are built to withstand the harsh marine environment and provide long-term service.
3. Fuel Efficient: These engines are designed to optimize fuel consumption, reducing operating costs and minimizing environmental impact.
4. Advanced Technologies: The 7C78 series engines come equipped with advanced technologies like Catalytic Reduction System (SCR) and Exhaust Gas Recirculation (EGR), which help in reducing emissions and improving overall engine performance.
Disadvantages:1. High Initial Cost: Caterpillar engines are known for their premium price tag. The 7C78 series marine diesel engines are no exception. The high initial investment might be a barrier for some buyers.
2. Complexity: These engines are complex machines with numerous components. Their complexity might require specialized knowledge and skills for maintenance and repair, increasing the overall cost of ownership.
3. Noise and Vibration: Marine diesel engines, including the 7C78 series, generate significant noise and vibration. This could be a concern for those looking for quieter engines or those who are sensitive to noise and vibration.
In conclusion, the Caterpillar 7C78 series marine diesel engines offer powerful performance, durability, and fuel efficiency. However, they come with a high initial cost, complexity, and generate significant noise and vibration.
If you are looking for a reliable, powerful, and fuel-efficient marine diesel engine and have the budget to accommodate the high initial cost and ongoing maintenance, then the Caterpillar 7C78 series might be the right choice for you. On the other hand, if you are looking for a quieter, less complex engine or have a limited budget, then you might want to consider alternative options. Ultimately, the decision depends on your specific requirements, budget, and priorities.
Details:
Same day shipping is usually available. Make: Caterpillar. Model: 3116/ 3126. Part #: 7C7872.
Stock #: in1375. One stop diesel, Garibaldi's. Good used Caterpillar 3116, 3126 Marine diesel engine line, for sale.
specifications inboardfuel:
- for models: Marine
- brand: Caterpillar
- mpn: 7c7872
- part type: Line Engine
- engine model: 3116, 3126
general inboardfuel:
- category: Boat Parts > Inboard Engines Components > Intake Fuel Systems
payments inboardfuel:
- wallet: google-pay
- credit card: diners-club
- other
offer inboardfuel:
- sold #: 16
- price: $60.00
- item condition: Used
- availability: in stock
- started: june 19, 2025
- options: ship-to-home
- in stock #: 1
shipping inboardfuel:
- type: calculated
- class: economy, expedited
- service: fedex ground economy, usps priority mail
- transit: 5-8 days
- carrier: fedex, usps
returns inboardfuel:
- policy: no returns
seller inboardfuel:
- # reviews: 892
- rating: 93.2%
- city: hialeah, florida
