
Caterpillar 3408 engines are industrial-grade powerhouses known for their unmatched reliability and efficiency. These versatile engines are widely used in industries such as construction, marine, mining, oil and gas, and power generation. Its legacy continues as a cost-effective and powerful choice for those seeking high-performance used engines.
When looking for a used 3408 Caterpillar engine, it’s important to find one that can withstand the test of time. After all, all that money you save is wasted if you must replace the engine a few weeks later. An engine that has stood the test of time, the terms ‘CAT 3408’ and ‘3408 CAT’ are used interchangeably to describe the same Caterpillar 3408 engine. While the CAT 3408 is no longer in production, it is still in high demand. Here’s why.
History of the Caterpillar 3408
CAT engines are renowned for their high performance and reliability, and the 3408 engine is no exception. With a legacy of power, durability, fuel efficiency, and versatility, it remains the engine of choice for operators around the world. The 3408 CAT is a V8 variant of the popular 3406 engine, commonly referred to as the Caterpillar 3408.
The CAT 3408, introduced in the 1970s, quickly became a favorite in marine and heavy-duty industrial applications. Despite its discontinuation in 1985, the demand for used models remains strong, highlighting its exceptional design and performance.
3408 Horsepower (HP)
The 3408 CAT engine is a diesel internal combustion engine known for its impressive power output. Its 8-cylinder design can provide between 440 and 520 horsepower and generate up to 266 kW of electrical power. The engine’s horsepower varies based on the specific model and application. For example, the marine version can deliver 480 horsepower, while the industrial version can achieve between 600 and 800 horsepower.
Additionally, the torque of a 3408 CAT industrial engine is typically around 2,000 lb-ft or more, although this can vary depending on the application. With outstanding specifications in both horsepower and torque, the 3408 CAT engine demonstrates superior performance, making it an easy choice. Explore its full specifications to find the ideal model for your needs.
Engine Reliability
The CAT 3408 engine boasts an impressive lifespan of up to 16,000 hours. OEM parts remain readily available, ensuring these engines can be maintained for years. Built for high-performance environments, it is a dependable choice for marine, industrial, and heavy-duty applications.
CAT 3408 continues to perform well as it ages. It remains a popular choice in various industries due to its power, durability, and the high-quality engineering that CAT is known for. One of the major challenges you may encounter is locating a listing that hasn’t already been sold.
Looking for a CAT 3408 or other high-performance engines? Contact Depco Power Systems for expert guidance on finding the perfect power unit to meet your needs. We can evaluate your power requirements and project specifications, both short-term and long-term, to identify the best engine for the job.
Why CAT 3408 is Still in Demand
The CAT 3408 diesel engine’s impressive life expectancy of up to 16,000 operating hours and powerful and efficient performance make it one of the most desirable engines on the market. This engine particularly appeals to companies looking to save money while enjoying the highest quality.
Its durable design, fuel efficiency, and versatility in modern applications make it a favorite among businesses. Notably, models like the CAT 3408 are especially sought after for their reliability and efficiency in meeting today’s environmental standards and operational demands. Investing in CAT 3408 means choosing the best for your equipment needs.
Caterpillar 3408 FAQs
What is the CAT 3408 engine and when was it produced?
The CAT 3408, also known as the Caterpillar 3408, is a turbocharged V8 diesel engine. It was introduced in the 1970s and produced until about 1985, and it remains popular today because of its durability and strong power output.
Is the CAT 3408 a V8 engine?
Yes. The CAT 3408 is a V8 version of Caterpillar’s 3406 inline-six engine. Its eight-cylinder V configuration allows it to produce more horsepower and torque than the 3406, making it a good fit for heavy-duty marine, industrial, and power-generation applications.
How much horsepower and torque does a CAT 3408 engine produce?
Horsepower for the CAT 3408 depends on the specific model and rating. Many marine 3408 engines are rated in the roughly 440 to 520 hp range, while some industrial and performance configurations can reach 600 hp or more, with certain marine setups exceeding 900 hp. Torque output also varies by rating, but 3408 engines are known for very high torque suitable for heavy-duty loads.
What are the key specifications of the Caterpillar 3408 engine?
The Caterpillar 3408 is a turbocharged, water-cooled V8 diesel with approximately 18.0 liters of displacement. Typical core specs include a bore of about 137 mm, a stroke of about 152 mm, direct injection fuel delivery, and a cast-iron block and cylinder heads designed for long service life.
Can you still find parts and service for the CAT 3408?
Yes. Even though the CAT 3408 is no longer in production, new old stock, remanufactured parts, and complete rebuilt engines are still available through Caterpillar dealers and independent diesel specialists. Overhaul kits, water pumps, cylinder heads, injectors, turbos, and other components can typically be sourced, and many shops continue to support 3408 rebuilds and field service.
How many cylinders does a 3408 Cat have?
The 3408 Cat is a V8 Caterpillar engine with eight cylinders. Its 8-cylinder V-configuration is one of the key features that contributes to the CAT 3408 engine’s durability and performance.




