mechanic smiling in front of car on lift and another mechanic working on it

We strive to be the best in Philadelphia, PA. Part of that is providing our customers with the most concise and up-to-date knowledge available. Here are a few quick tips we'd like to share with you to keep your car running in the best condition possible. Don't hesitate to come by and see us with any and all questions you may have. Harold's Used Auto Parts Inc is here to help!

fuel

At Harold's Used Auto Parts Inc in Philadelphia, PA, we know that fuel contamination is one of the priciest and most problematic issues that may plague a diesel engine. There are a variety of issues that cause contamination in fuel. Knowing these issues will help drivers become aware of fuel contamination and hopefully prevent these issues. 

transmission

Automatic transmissions aren’t well understood outside of specialists like our technicians here at Harold's Used Auto Parts Inc in Philadelphia, PA. While it would be impossible to teach you enough to make you a transmission expert in a quick article, what we can do is give you the fundamental knowledge you need to have a good idea of what your transmission is doing and how it works. Being able to understand how your transmission works will help you identify any problems that may arise to prevent further wear and tear on your vehicle. 

differerential

If you own a rear-wheel-drive car, truck, or SUV then your vehicle is equipped with a differential. Like any other component on your car, maintaining your differential is an important aspect of keeping your vehicle reliably on the road. From Harold's Used Auto Parts Inc in Philadelphia, PA, here’s what you need to know.

two technicians working on a vehicle

At Harold's Used Auto Parts Inc in Philadelphia, PA, precision and quality are our top priorities. That’s why we always employ ASE certified technicians - but what does that mean for you?

changing a tire

If you spend much time on the road, you’ll eventually encounter a flat tire on your vehicle. At Harold's Used Auto Parts Inc in Philadelphia, PA we want to prepare you for what you should do next.

alignment being done on a vehicle

At Harold's Used Auto Parts Inc we know how important tire maintenance is. Like the shoes on our feet, the tires and wheels on our cars protect us from direct contact with the ground. And like those shoes, we wear day in and day out, tires and wheels can rub, wear unevenly, and eventually fail to do their jobs.

mechanic messing with a tire on a lifted car

The operation of your transmission depends on your hydraulics. Even if that sounds like a foreign language to you, at Harold's Used Auto Parts Inc in Philadelphia, PA, we speak the automotive language. We want you to understand what we're talking about, so here are the basics of the hydraulic functions behind your transmission.

  • 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