Automotive Repair

  • A Brief History of the Diesel Engine

    diesel engine

    At Harold's Used Auto Parts Inc in Philadelphia, PA, we know that diesel engines play a huge role in many of our customers' daily ways of life. If you drive a Duramax, Powerstroke, or Cummins diesel pickup, you obviously appreciate the power of the diesel engine. Diesel engines are prevalent all over the road, but where did it all start, and why are diesel engines most commonly found in trucks today? 

  • A Guide To Your Vehicles Air Filters

    air filter being added the engine

    Air filters are an important part of vehicle maintenance. What many people don’t realize is you actually have two filters; one for your engine and a cabin filter to filter the air coming into your car. Both of them function the same way but have entirely different purposes. They are often neglected, particularly the cabin filter, and yours may need to be changed right now. This guide, provided by Harold's Used Auto Parts Inc in Philadelphia, highlights the importance of filters, symptoms of an overused one, and how to maintain them.

  • A Shop that Goes the Extra Mile

    smiling technician

    At Harold's Used Auto Parts Inc, an integral part of our business is providing only the best customer service to our clients. Whether it’s through great communication skills or quality auto repairs, our customers can trust that whenever they come into our shop, they’re being treated with care along with their truck.

  • Air Filtration & Why It Is Important

    dirty air filter vs clean filter

    Your vehicle's engine needs clean air to burn the fuel – and it needs a lot of clean air. In fact, a typical vehicle needs about 216,000 gallons of air for every tank of gas. All that air passes through a filter that catches the dust and dirt. Eventually, the filter gets completely full, and because the filter can only hold so much, dirt starts getting through. At Harold's Used Auto Parts Inc in Philadelphia, we ensure you get the best air quality in your vehicle and explain the process of where this dirty air is going to our area drivers. 

  • All Your Fuel System Questions Answered

    fuel being put into vehicle

    Your car’s fuel system works with the rest of the engine control system to deliver the best performance with the lowest emissions. Check your car’s fuel system regularly or immediately if you smell gas or suspect a problem.

    What does it do? - The fuel system transfers fuel from the fuel tank and passes it through a fuel filter for straining before it arrives at the injectors. A pressure regulator controls fuel pressure to ensure good engine performance under a variety of speed and load conditions. Fuel injectors, when activated, spray a metered amount of fuel into the engine. Some vehicles use a return line system to return unused fuel back to the tank.

  • Are You Experiencing Clutch Issues?

    foot on clutch

    If you drive a standard shift vehicle, you probably know your clutch is an important part of your driving experience. Proper maintenance and use of the clutch will dramatically increase its lifespan, saving you a lot of money in the future. Harold's Used Auto Parts Inc in Philadelphia explains:

  • Are You In Need Of New Brake Pads?

    brake pad

    Do you need new brake pads? Most of the time, if you think you do, the answer is yes. While a lot of auto parts stores sell brake pads with lifetime warranties, don’t be misled...brake pads will still wear down.

  • Are Your Ball Joints Failing?

    mechanic working on ball joints on a vehicle

    If you own or operate a fleet of vehicles or a commercial truck, chances are you’ve encountered a bad ball joint or two. How do you catch one before it breaks, and why is it important? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

  • ASE Certified Technician for Transmission Care

    At Harold's Used Auto Parts Inc in Philadelphia, PA, we understand that the care for your vehicle is in the details. Transmission work, more so than any other type of maintenance or repair, requires a keen eye and specific know-how.

  • ASE Certified Technicians - What Does It Mean For You?

    technician in auto shop

    Whether you drive a Chevy, Ram, or Ford diesel pickup, we have you covered. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can do it all - and a big part of that is done by employing ASE certified technicians.

  • Bad Battery?

    Without a working battery, your car will not be able to start. If you perform proper maintenance, however, an average car battery can start your car reliably for roughly four years. Your vehicle's radio and headlights, plus a slew of other important functions, are powered by an electrical current generated by your vehicle’s engine but a vital part of generating electricity is having a place to store it while it’s not being used, which is where a car battery comes into play. The battery holds electrical energy while a car is off in order to help the engine turn over and create a spark to start internal combustion.  What you don't want is to have a bad battery!!

  • Best Questions to Ask A Mechanic

    A good technician will give your vehicle a quick inspection whenever you have maintenance performed. Fluid levels, tire condition, dashboard lights, and a variety of other items typically are briefly explored whenever you bring your vehicle in for maintenance. At Harold's Used Auto Parts Inc in Philadelphia, PA, we're good at noticing things that need repair, but the fact of the matter is that only you know your vehicle. You know when your vehicle feels off when its been serviced last (or that it hasn't been serviced at all,) and have at least some vague idea of what’s going on with your vehicle day to day. Here are some questions you can ask us next time you come by the shop:

  • Brakes - how do they work?

    Brakes

    At Harold's Used Auto Parts Inc in Philadelphia, we know that in order to keep your car in good shape, it helps to know how it works. Here’s a quick rundown of a system that’s very important, but you take for granted until there’s a problem; your brakes.

  • Brakes for Your Fleet

    brakes

    At Harold's Used Auto Parts Inc in Philadelphia, our expert mechanics are here to work for you. On large commercial trucks, there’s one component that works harder than almost all the rest; your brakes. Our technicians have the knowledge and ability necessary to have your truck stopping like the day it rolled off the lot, no matter what the problem is.

  • Bumper Cover Damaged Or Loose?

    bumper on a white car with lights on

    Your bumper covers are always in danger. Between other drivers, obstacles in the road, flash floods, or any other hazard you may encounter, at some point it’s likely your bumper covers will accrue some damage. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can fix that.

  • Can’t shift out of Park?

    There may come a day when you go to shift your vehicle out of “Park”, and the shifter refuses to move. Perhaps you are already experiencing this issue intermittently, or currently have a vehicle stuck in park. While this is a serious inconvenience, it doesn’t necessarily indicate a serious problem; let Harold's Used Auto Parts Inc in Philadelphia, PA put your mind at ease.

  • Choosing the Right Fluid for Your Transmission

    fluid being poured from a container

    In life, you learn that more expensive doesn’t always mean better. When it comes to transmission fluid, does it matter? Are name brand fluids better than the cheapest option? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

  • Cleaning Your Fuel System

    pumping fuel into car

    Obviously, your fuel delivery system is an extremely important aspect of the running condition of your truck. At Harold's Used Auto Parts Inc in Philadelphia, our expert team of mechanics can treat and clean your fuel delivery system, ensuring you get the most out of your fleet.

  • Customer Service is Our Top Priority

    graphic that reads service

    In the automotive business, the customer is just as important as the vehicle and the customer service is just as important as the auto repair. That is why at Harold's Used Auto Parts Inc, we strive to provide only the best customer service to our clients.

  • Difference between Four Wheel Drive and All Wheel Drive

    At Harold's Used Auto Parts Inc in Philadelphia, PA, we service all types of transmissions, on any car, truck, or SUV. This includes both All-Wheel Drive and Four-Wheel Drive vehicles, but you may be wondering...what’s the difference? Both types of vehicle supply power to all four wheels, so why use two different terms? Due to the increasing demand for AWD and 4WD vehicles over the last decade, equipped on everything from sports cars to pickup trucks, more and more people are asking these same questions.

  • Jasper
  • Acdelco
  • ASE
  • Auto Zone
  • Berrodin
  • BF Goodrich
  • Bosch Automotive
  • Bridgestone Firestone
  • Cooper Tires
  • Customer Savings
  • Dunlop Tires
  • Fleet Services
  • Goodyear
  • Handicap Accessible
  • Hankook Tires
  • JASPER Marine
  • Kelly Tires
  • Michelin
  • Mastercraft
  • Motorcraft Parts
  • Pet Friendly
  • Radiator
  • State Inspection
  • Sumitomo Tires
  • Tires
  • Towing
  • Toyo
  • Uniroyal
  • 12 Month Warranty
  • Wifi Available

5347 Whitby Ave
        Philadelphia, PA

(215) 472-1552
Email the Shop
MON-FRI | 8:30 AM - 5:30 PM
SAT | 8:30 AM - 2:00 PM
SUN | CLOSED
Closed every third Saturday of the month