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?

At Harold's Used Auto Parts Inc in Philadelphia, PA, we know buying a used car, truck, or SUV can be a gamble. While there are no guarantees, there are key points of inspection that tell us a lot about the condition of a vehicle and how it has been maintained. There are some important points of the inspection we verify when checking out a used vehicle.

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.

At Harold's Used Auto Parts Inc in Philadelphia, PA, we believe it’s important for you to know how different systems in your car, truck, or SUV operate. Whether you want to know what to watch out for, or you’re just curious about how things work, we’re here to supply the answers.

At Harold's Used Auto Parts Inc in Philadelphia, PA, we know how annoying a faulty fuel gauge can be. Never knowing how much gas you have in your car, truck, or SUV, and constantly running the risk of stranding yourself on the road somewhere, takes its toll after a while. Luckily, we can fix that.

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.

We’ve all been there: You start your car in the morning and begin to back out of the driveway. You hear an unusual noise coming from your car, and it sounds bad. How do you know if it's something you should bring in to us here at Harold's Used Auto Parts Inc to get looked at? 

At Harold's Used Auto Parts Inc in Philadelphia, we change many tires that should’ve been replaced long ago. Your tires can go for miles and miles, but there always comes a time to replace them. So how can you tell when the right time is?

Vehicle belts aren’t that different than the belts that hold up your trousers. They need to fit properly and stay in place, and if they break, sag, or wear out, you’ll probably wish you were wearing a different belt that day. The same goes for the belts in your car. Your engine compartment is a punishing environment, and while all auto belts are made of materials designed to be both flexible and tough, even the toughest materials will eventually wear out due to the extreme temperatures under the hood.

If you own or manage a fleet or commercial truck, you know what a headache it can be to take the same vehicle in for maintenance over and over, wasting valuable time. At Harold's Used Auto Parts Inc in Philadelphia, PA, we have the technology, equipment and technicians necessary to get the job done fast, and get it done right.

Tire rotations are a part of vehicle maintenance. The purpose of rotating your tires is to make them last as long as possible, prevent your suspension from wearing out prematurely, and keep the drivability of your car in the best possible condition. So when should you get a tire rotation?

At Harold's Used Auto Parts Inc in Philadelphia, the history of cars is a huge topic of interest to us. Here’s an interesting piece of automotive trivia, from us to you.

If you drive a lightweight car, truck, or SUV, the torque converter you have installed is probably just fine. For those of you with more heavy-duty applications, like high horsepower setups or towing rigs, the stock converter may not be enough. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can help with that.

Antifreeze is a fluid that’s just as important as oil to the engine in your car, truck, or SUV. You probably already know it’s essential to keeping your engine cool - but it’s important for more than one reason, and does require maintenance besides keeping it full. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s what you need to know about antifreeze.

When something goes wrong with your vehicle, it can be tempting to take the cheapest route. With eBay, Amazon, and the countless other sources for car and truck parts on the market today, many people decide to go that route to save some money. Here we choose only quality automotive parts for our Philadelphia, PA driver at Harold's Used Auto Parts Inc because we want to ensure their parts match our commitment to providing them high quality repairs.

At Harold's Used Auto Parts Inc in Philadelphia, we understand the importance of proper transmission maintenance. Commercial trucks are heavy, and they rack in a lot of miles. With this combination, it’s essential the transmissions in your trucks are always performing their best. Here’s a few things to watch out for:

Your Vehicle Identification Number, or VIN, is essentially your car’s fingerprint. In its entirety, it is specific only to your car. Each car has its own unique VIN number and can be decoded to provide manufacturing and identification information on any vehicle on the road. Date of manufacture, manufacturer, vehicle type, where it was made, and options such as engine and transmission type, whether a car is a two or four-door, and a multitude of other specifications can be gleaned from a VIN number. Essentially, a VIN number will tell you exactly what a car is and where it came from, without even having to see the car.