technicians

There is a reason we check your brake fluid when you come in for a service check.  Maintenance pays big dividends and we want to avoid high repair costs for our Philadelphia drivers.  Did you know that brake service isn't just all about the brake pads, drums & rotors?  That we have found low brake fluid to be the cause of a large percentage of brake issues here at Harold's Used Auto Parts Inc?  Seriously, brake fluid is an important part of your braking system and with your service intervals being less frequent on the newer vehicles 5,000-10,000 more miles this has become an issue!  Why?...

mechanic holding a wrench in auto shop

At Harold's Used Auto Parts Inc in Philadelphia, PA, our objective is to keep your diesel truck on the road, where it belongs. Whether it’s maintenance, repair, or information that keeps you from needing a repair, we do our best to keep you informed on how to best take care of your diesel truck. Cavitation is a leading killer of diesel engines. It’s an interesting process, albeit an expensive one if your diesel engine is a victim of cavitation. From our team here at Harold's Used Auto Parts Inc, here's what you should look out for:

smiling driver behind the wheel

Whether you’ve been driving for five days or fifty years, there’s always room for improvement. At Harold's Used Auto Parts Inc in [BUSINESS_CITY[, we want to keep you safe. If you firmly believe you've got stellar skills behind the wheel, keep in mind that even the world's most talented racecar drivers are constantly training and sharpening their driving techniques. 

diesel truck

What is an HEUI System you may ask? When it was first introduced, HEUI systems revolutionized diesel technology in groundbreaking ways. Though other technologies have taken the forefront since its development, HEUI systems are still extremely common throughout the diesel industry. From our team here at Harold's Used Auto Parts Inc in Philadelphia, PA, here’s a quick look at how these systems work, and what the advantages are of having one.

transmission fluid

You’ve probably heard the term “transmission flush” before at some point in your automotive experience. But what exactly does it mean to have your transmission flushed, and why does it matter? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

tire flat on a vehicle

It is often the last thing you check and statistically, most people ignore their tires, yet tires are undoubtedly a critical safety component on a vehicle. Here at Harold's Used Auto Parts Inc in Philadelphia, PA, we know where the rubber meets the road affects traction, handling, steering, stability, and braking. Because of this, sudden tire failure can have serious consequences, especially if it occurs when operating at high speeds. We thought it important to share the real facts about tires for our area drivers.

Cleaning the dashboard of a vehicle

The interior of your car can be difficult to maintain; between you, your kids, and anyone else who gets a ride from you, wear and tear on the interior of your vehicle is constant. Drinks get spilled, burn holes appear, rips and tears happen. Unlike the rest of your car, the interior isn’t made of metal, so it requires special treatment to keep it in good condition.

You’ve likely heard that diesel engines are ok to idle indefinitely, and that it’s even good for them. Where does this logic come from, and is it true? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

  • 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