The Caterpillar C15 diesel engine has built a reputation as one of the most popular heavy-duty engines in the trucking and equipment industry. Known for its durability, pulling power, and long service life, the C15 has been a go-to engine for fleets and independent operators since its introduction in the late 1990s. However, like any engine, it comes with both benefits and drawbacks.
Continue reading Caterpillar C15 Diesel Engine: Engine SpotlightHow do you pick the right diesel engine model? This is a challenging task. You’ll need plenty of information if you’re deciding between the Caterpillar 3406E, C15 ACERT, or C15 engine. And we have as much information as you can get to make an informed decision.
Continue reading Important Differences Between Caterpillar 3406E, C15, and C15 Acert Diesel EnginesPicking the right diesel engine model is no easy task. If you’re considering purchasing a Caterpillar 3406E, C15, or C15 ACERT, we have the information to help you make a decision.
Continue reading The Primary Differences Between Caterpillar 3406E, C15, and C15 Acert Diesel EnginesCaterpillar built some of the most well-known diesel engines in the trucking industry.
From the early 3406 series to the C15, these engines earned a reputation for durability, rebuild-ability, and long service life.
But despite that reputation, Caterpillar exited the on-highway truck engine market in 2010.
So what actually happened?
Continue reading Why Caterpillar Stopped Making On-Highway Diesel EnginesTurbochargers play a critical role in modern Caterpillar diesel engines.
They help increase power, improve combustion efficiency, maintain emissions performance, and support fuel economy by forcing additional air into the engine. Without proper turbocharger operation, even a healthy diesel engine can experience power loss, excessive smoke, poor fuel economy, and high exhaust temperatures.
Yet one of the most common mistakes made during a turbocharger replacement has nothing to do with the turbo itself.
Many failed turbochargers are replaced without identifying the root cause of the original failure.
As a result, the replacement turbocharger often suffers the same fate.
Understanding why Caterpillar turbochargers fail—and how to prevent repeat failures—can help reduce downtime, avoid unnecessary repairs, and improve long-term engine reliability.
Continue reading The Top Ways to Kill a Caterpillar Turbocharger
When Caterpillar stopped producing on-highway diesel engines in 2010, it didn’t mean those engines disappeared.
In fact, thousands of Caterpillar engines – especially the C15 – are still running today in fleets across the country.
So the real question isn’t just why Caterpillar left the market.
If you’re looking for a full breakdown of that decision, read Why Caterpillar Stopped Making On-Highway Diesel Engines to understand the emissions, engineering, and business factors behind it.
👉 It’s what that decision means for reliability, parts availability, and long-term ownership today.
Continue reading What Happened After Caterpillar Stopped Making Truck Engines (And What It Means for C15 Owners Today)
When a Caterpillar engine starts losing power, producing excessive smoke, struggling with recurring DPF issues, or experiencing turbocharger problems, the turbocharger is often the first component blamed.
Sometimes the turbocharger is the problem. But many times, it is simply the victim.
What many technicians and equipment owners don’t realize is that fuel injectors and turbochargers work together as part of the same combustion process. When injector performance begins to decline, the effects can spread throughout the entire engine, eventually impacting the turbocharger, aftertreatment system, fuel economy, and overall performance.
Before replacing another turbocharger, it may be worth taking a closer look at the fuel system.
