mechanic holding a wrench

If you drive a diesel vehicle, it’s because you know that quality matters. At Harold's Used Auto Parts Inc in Philadelphia, PA, we built our reputation on quality. We chose to work on quality products because it’s something that we ourselves believe in, and strive for daily.

injection pump

Whether you drive a Chevy, Ford, or Ram diesel pickup, your engine is likely equipped with an injection pump. While injection pumps have been gradually phased out on modern engines, they are still an integral part of most diesel engine operations. At Harold's Used Auto Parts Inc in Philadelphia, PA, we specialize in maintenance and repair on Cummins, Duramax, and Powerstroke engines, including injection pumps.

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.

fleet of vehicles

If you own or operate a fleet or commercial vehicle, you’ve undoubtedly heard the horrible squeal of a belt on its last leg. Luckily, Harold's Used Auto Parts Inc in Philadelphia, PA has the solution.

close up of side of car

Transmission failure rarely happens out of the blue - there’s a good chance a transmission will give you a good amount of warning before kicking the bucket. Here are some things you can watch out for, from our team here at Harold's Used Auto Parts Inc in Philadelphia, PA.

Transmissions rarely go out without a warning. Typically it takes a while, during which time there will be observable symptoms. Sometimes it’s an easy fix and sometimes it isn’t, but it’s always better to catch an issue and get it repaired as soon as possible. Harold's Used Auto Parts Inc in Philadelphia, PA has provided you with a few things to watch out for.

fuel gauge on car

Getting into the habit of saving on fuel now will mean you’ll be ready when prices start hitting the $4.00-gallon mark once again. You don’t have to buy a new, fuel-efficient car, either. No one wants to trade a fuel bill for a car payment, so take a look at our top 5 ways to save on fuel and you may just be able to pocket a little extra money at the end of the month.

semi driving on road

At Harold's Used Auto Parts Inc in Philadelphia, we understand how important safety is in the world of truck driving. The stakes are higher in a big truck; potential for damage is obviously far greater, to you, your cargo, and other people on the road. Here are some easy tips that go a long way.

  • 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