Is your diesel used for off-roading or towing? Are you looking for an increase in performance for your Cummins, Powerstroke, or Duramax truck? If so, a billet torque converter may be an option you’d like to consider. Here’s what you need to know about billet torque converters, from Harold's Used Auto Parts Inc in Philadelphia, PA.

Chevrolet, Ford and Ram diesel pickups are well-built machines. Still, sometimes they break down. Here’s what you can do to prevent that from happening and reduce the cost of a more expensive repair. At Harold's Used Auto Parts Inc in Philadelphia, PA our diesel customers are important to us and we want your diesel to last you.

The fuel system is an integral aspect of any combustion engine, but it’s particularly important on diesel trucks. Your Ford, Dodge, or Chevrolet pickup requires a perfectly functioning fuel system, devoid of buildup, leaks, and debris, to provide you with the most powerful and efficient engine performance possible. At Harold's Used Auto Parts Inc in Philadelphia, PA, we understand that fuel system flushing is an essential process in maintaining a properly functioning engine.

What is an HEUI System you may ask? When it was first introduced, HEUI systems revolutionized diesel technology in groundbreaking ways. Though other technologies have taken the forefront since its development, HEUI systems are still extremely common throughout the diesel industry. From our team here at Harold's Used Auto Parts Inc in Philadelphia, PA, here’s a quick look at how these systems work, and what the advantages are of having one.

At Harold's Used Auto Parts Inc in Philadelphia, PA, our priority is keeping your Dodge, Chevy, or Ford truck reliably on the road. A major aspect of that is catching small issues before they become bigger ones.

Injectors are a primary component on any diesel engine, old or new. Whether you drive a Chevrolet, Ford, or Dodge pickup, clean and fully operational injectors are an absolutely essential aspect of maintaining an efficient and powerful engine. At Harold's Used Auto Parts Inc in Philadelphia, PA, we offer a variety of injector solutions, from cleaning them, to diagnosing problematic injectors, to replacing them.

You’ve likely heard that diesel engines are ok to idle indefinitely, and that it’s even good for them. Where does this logic come from, and is it true? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

Whether you drive a Chevrolet, Ford, or Dodge diesel pickup, there will come a day when it’s time to ask the question - has the time come to get a new truck? Harold's Used Auto Parts Inc in Philadelphia, PA is here to help you decide.

You trust your diesel to get you to point A to point B every time you get into your truck. However in return, if your truck starts to act differently take the time to pause and listen to what your truck is trying to tell you. Issues can be as small as a thermostat going out, which if fixed now could reduce a more expensive repair down the road! The thermostat in your truck is a small, simple, and critical component. At Harold's Used Auto Parts Inc in Philadelphia, thermostat replacements are just one of many repairs we tackle.

Every time you get into your diesel truck you probably forget all the safety features your vehicle has for you in case of an accident. Airbags are one of the greatest features of modern diesel trucks, though they aren’t often considered until you need them. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s a nod to one of the better vehicle advancements of our time and why it's important not to ignore warning signs.

Whether you drive a Chevy, Ford, or Ram diesel pickup, your engine is likely equipped with an injection pump. While injection pumps have been gradually phased out on modern engines, they are still an integral part of most diesel engine operations. At Harold's Used Auto Parts Inc in Philadelphia, PA, we specialize in maintenance and repair on Cummins, Duramax, and Powerstroke engines, including injection pumps.

Your truck was built for work. Whether you drive a Ram, Chevy, or Ford diesel pickup, your truck was designed to endure, day in and day out. Nonetheless, eventually, there will come a time where your engine needs major repair - and you’ll have to make a decision on what to do next. At Harold's Used Auto Parts Inc in Philadelphia, PA, we’re here to help.

Trucks aren’t like cars...your average personal vehicle usually holds about 5 quarts of oil, and you are supposed to change it every 3-5k miles. However, the same logic doesn’t apply to large trucks. At Harold's Used Auto Parts Inc in Philadelphia, PA, we know how important proper oil changes and diagnostics are to keep your truck on the road, for hundreds of thousands of miles. Here’s what you need to know:

Whether you drive a Chevrolet, Ford, or Dodge diesel pickup, there will come a day when you have to ask the question - has the time come to get a new truck? Knowing when to throw in the towel or decide to keep the vehicle you have can be a difficult task. Harold's Used Auto Parts Inc in Philadelphia, PA is here to help you decide.

While most fleet vehicles are chosen for their reliability, low maintenance, and durability, sometimes maintaining several of them at a time can become overwhelming. Just keeping up with the maintenance schedule alone is a task and then to ensure you keep your scheduled routes for those fleet vehicles is another task in itself. Let Harold's Used Auto Parts Inc in Philadelphia put your mind at ease, with our fleet maintenance programs for any and all fleet vehicles. We will take the stress from your business fleet program and get your fleet trucks and fleet cars running at optimum performance with a routine that works for your business that often REDUCES costs!

Harold's Used Auto Parts Inc in Philadelphia, PA services all kinds of trucks, regardless of weight class. From small trucks to semi’s, we’ve got you covered. For the sake of curiosity, however, what classifies a truck as light or heavy-duty?

At Harold's Used Auto Parts Inc in Philadelphia, PA, we know that your diesel pickup is more than just transportation; you want a truck that can perform, both at work, off-road, and on the street. A major aspect of your truck’s abilities lies in the suspension components you choose to install. Our team of expert technicians has the knowledge, equipment, and ability necessary to take your truck to the next level and provide you with a suspension setup tailored to your specific needs.

Keeping your fuel system maintained will prevent premature parts failure and poor running conditions. Here are some important aspects of diesel fuel system maintenance, to keep your fleet running smoothly. While your system and components should typically be serviced by a professional technician, there are some things you can be conscious of that will go a long way toward keeping your engine in good shape.

Correct fluid levels are essential to keeping your Ram, Ford, or Chevrolet diesel pickup on the road. Luckily, checking your coolant, oil, brake, and transmission fluid are easy to do, and will save you from a variety of issues down the road. Here’s what you should know about keeping the fluid levels in your truck maintained, from Harold's Used Auto Parts Inc in Philadelphia, PA.

While diesel trucks are some of the best vehicles on the road today, sometimes maintaining a fleet of them can become overwhelming. Let Harold's Used Auto Parts Inc in Philadelphia put your mind at ease, with our fleet maintenance programs for diesel fleet vehicles.