Don’t you hate it when potholes sneak up on you? There is a lot of money being spent on vehicle damage due to potholes. Do you know what parts of your car could receive the most damage? Harold's Used Auto Parts Inc is the leader in Philadelphia, PA for the service and repair of automotive tires. We know the kind of damage that can be done, so if you suspect something is wrong with your car or truck, it’s always a good idea to stop by so we can take a quick look.

Your car’s radio and headlights, plus a slew of other important functions, are powered by an electrical current generated by your vehicle’s engine. A vital part of generating electricity is having a place to store it while it’s not being used. This is where your car battery comes into play. The battery of your vehicle holds electrical energy while the car is off in order to help the engine turn over and create a spark to start internal combustion. Without a working battery, your car will not be able to start. If you allow our team here at Harold's Used Auto Parts Inc to perform proper maintenance, an average car battery can start your car reliably for roughly four years.

Whether you drive a Chevy, Ram, or Ford diesel pickup, Harold's Used Auto Parts Inc in Philadelphia, PA is here to make sure your truck stays up to the task for a long time to come.

Whether it’s due to damage, or simply old age, leaky trucks are a problem. At Harold's Used Auto Parts Inc in Philadelphia, we can fix that for you.

Water leaks are common and hazardous. Not only do they cause rust, rot, and mold damage to your trucks, they also put any cargo inside at risk. No customer wants their boxes and products to arrive water damaged - it not only makes your company look bad but can cost you a lot of money. 

Road trips are a lot of fun, and often unpredictable. For all the miles you will be driving we always recommend preparing for any situation. With this checklist from Harold's Used Auto Parts Inc in Philadelphia, you’ll be prepared for whatever comes your way.

At Harold's Used Auto Parts Inc in Philadelphia, PA, we understand that big trucks mean bigger risk on the road. Here are some tips to remember, to reduce the likelihood of an accident next time you’re on the job.

At Harold's Used Auto Parts Inc in Philadelphia, we understand how important safety is in the world of truck driving. The stakes are higher in a big truck; potential for damage is obviously far greater, to you, your cargo, and other people on the road. Here are some easy tips that go a long way.

At Harold's Used Auto Parts Inc in Philadelphia, we know that keeping up with required maintenance schedules is the difference between a truck that lasts a few years and a truck that stays strong for decades.

At Harold's Used Auto Parts Inc in Philadelphia, we’re not only here to fix your truck when something goes wrong...we’re here to help you understand your truck a little better, too. Here are some tips concerning your thermostat - how it works, what to watch out for, and what to do about it when one fails.

At Harold's Used Auto Parts Inc, there’s a reason we’re the top rated truck repair center in Philadelphia, PA; we do it all. While many shops shy away from the more complicated aspects of truck repair, we have the tools and people to get the job done.

Transmission slippage can be caused by a variety of factors that are sometimes difficult to pin down. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s a rundown of the more common issues that may cause a transmission to slip. Our highly trained technicians are ready to get you going with a top transmission.

All trucks, from a Chevy S-10, to the largest, heavy-duty trucks on the road, are classified into categories. Trucks are categorized by weight into classifications 1-9, and each grade comes with its own set of regulations and license requirements. Here’s a quick guide, from Harold's Used Auto Parts Inc in Philadelphia.

The Turbo on your Chevrolet, Dodge, or Ford diesel truck is an integral component of your truck’s ability to perform. Turbos affect everything from power output to fuel mileage, allowing your pickup to reach its full potential in terms of power, torque, and efficiency. At Harold's Used Auto Parts Inc in Philadelphia, PA, turbo knowledge is one of our specialties, because we understand the importance of quality turbo parts, replacements, and repair.

Have you always wondered what a spark plug does? Our team here at Harold's Used Auto Parts Inc is here to help you out. It's simple in theory but does quite a lot of work for such a small piece of equipment. Your spark plug forces electricity to arc across a gap like a bolt of lightning at high voltage and fits into your engine's cylinder head, where it “sparks” to ignite the fuel and creates combustion within your engine. Without it, you wouldn't be able to drive your car or truck. 

At Harold's Used Auto Parts Inc in Philadelphia, we know an important part of your ability to care for your transmission lies in your knowledge about how it works. Here is some information on the tow button, if your car, truck, or SUV is equipped with one.

At Harold's Used Auto Parts Inc in Philadelphia, routine maintenance and repair isn’t the only thing we do. For custom parts installation, you can also count on us. Common modification enthusiasts do is swapping to a short-throw shifter; but what actually is a short-throw shifter, and what does it do?

If you own or maintain a fleet or commercial truck, you are likely already familiar with the term ASE certified technician. But what does ASE mean, and why is it important? Harold's Used Auto Parts Inc in Philadelphia, PA has the answer.

At Harold's Used Auto Parts Inc in Philadelphia, we know that few problems are simultaneously as simple and confusing as a bad ground connection on your car, truck, or SUV. Here’s a look at some symptoms of a bad ground, and what you can do to correct it.

Unless you use your vehicle to tow every day for work, odds are you haven’t paid much attention to your truck, SUV, or crossover’s towing capacity. Maybe you’re looking to buy a boat for some summer fun or just need to rent a trailer to get your belongings from one dwelling to the next. Whatever the reason for pulling something behind your vehicle, it’s important to get a firm grasp on what exactly your towing capacity means. Understanding how each of the components in your vehicle contributes to your overall tow rating can keep you from putting undue stress on your rig and keep you and your family safe.

Wheel bearings are an often overlooked, but incredibly important component on your diesel truck; and when one begins to fail, other problems begin to arise. Harold's Used Auto Parts Inc in Philadelphia has the information you need to recognize a problem before it turns into a bigger one. Here’s what to look out for: