diesel truck

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, we understand that fuel system flushing is an essential process in maintaining a properly functioning engine.

If you drive a Mercedes, Porsche, Subaru, BMW, Jaguar, or other performance and luxury vehicle, you’re a person who appreciates the value of quality. At Harold's Used Auto Parts Inc, we share that appreciation - that’s why we specialize in quality cars and take pride in quality work.

fleet cars

Fleet operators know that a day’s work can burn through a lot of fuel. When it comes to multiple vehicles, even a slight change in the way vehicles are used can make a huge difference towards saving fuel, and money as a result. Whether you manage diesel trucks, fleet cars, or both, a little bit of effort can sometimes go a long way.Harold's Used Auto Parts Inc in Philadelphia, PA has a few tips you can use to keep fuel consumption low, that you may be interested in implementing throughout your fleet.

man turning wrench

At Harold's Used Auto Parts Inc in Philadelphia, PA, transmission maintenance and repair is our specialty. Here’s some information on your transmission pump - what it does, and how to know if yours needs to be replaced.

fleet of trucks

At Harold's Used Auto Parts Inc in Philadelphia, PA, maintaining your fleet and keeping your business reliably on the road is our primary focus. As trucks wear out, and they always do, you will inevitably be faced with this dilemma - “Should I fix this truck, or replace it with a new one?” This isn’t always an easy question to answer. As your fleet specialists, our team here at Harold's Used Auto Parts Inc is here to help you decide.

If there’s one thing we know at Harold's Used Auto Parts Inc in Philadelphia, PA, its the importance of a transmission. While engines get a lot of the spotlight in conversations about vehicles, we know that the transmission is the unsung hero of your automobile. We want you to know just how important it is, too.

Vehicle Rack in a shop

Fluid levels, tire condition, dashboard lights, and a variety of other items typically are briefly explored whenever you bring your vehicle in for maintenance here at Harold's Used Auto Parts Inc in Philadelphia, PA, where we are good at noticing things that need repair, but the fact of the matter is that only you know your car. You know when your car feels off when it's 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;

smoke coming out of a muffler

In the diesel world, "blow-by" is a term you’re bound to run across at some point if your line of work involves diesel-powered vehicles of any kind. What is blow-by, what causes it, and how concerned should you be? At Harold's Used Auto Parts Inc in Philadelphia, PA, our fleet maintenance and diesel technicians see it on a regular basis. Here we’ll take a quick look at blow-by, correcting it, and preventing it.

  • Jasper
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  • Auto Zone
  • Berrodin
  • BF Goodrich
  • Bosch Automotive
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  • Goodyear
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  • 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