keys in an ignition

If you own or operate a fleet or commercial truck, you know it’s hard to keep everything working perfectly all the time. You have to choose what to give priority to, and what can wait. However, some small problems are indicators that a bigger issue is on the way. At Harold's Used Auto Parts Inc in Philadelphia, PA, our goal is to keep you and your fleet going.

If you own or operate a fleet or commercial truck, you’re no stranger to breakdowns or have heard the horror stories breakdowns can endure. So why do they happen, and what can you do about it? Harold's Used Auto Parts Inc in Philadelphia, PA wants to get you informed. Reducing the chance of a break down can help protect your driver, reduce larger repair fees down the road, and keeps your business running smoothly without having a fleet truck down. 

exhaust coming form muffler

When you think about diesel engines, you probably think about large trucks and machinery, and maybe a few oddball cars over the years. So how long has diesel really been around, and why is it used the way it is today? At Harold's Used Auto Parts Inc in Philadelphia, PA, we have the answers.

If you drive a dodge, Chevy, or Ford diesel pickup, there will come a day when you start the engine, only to be met with a sound of high pitched squeals. Fortunately Harold's Used Auto Parts Inc in Philadelphia, PA has the solution you’re looking for.

man standing by diesel truck with tools in hand

Currently, the future of electric vehicles looks promising - though it won’t likely replace your Duramax, Powerstroke, or Cummins engine any time soon. Still, we don’t know what the immediate future holds. This battle was waged once before in the past, with combustion engines taking the throne over electric power. Here’s a brief history of electric automobiles, from Harold's Used Auto Parts Inc in Philadelphia, PA.

diesel fuel pump

Good diesel technicians and shops that service diesel engines are hard to come by. At Harold's Used Auto Parts Inc in Philadelphia, PA, diesels are our specialty. There are many reasons to have diesel truck maintenance performed by diesel specialists - here are just a few.

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:

Now that you’ve got an idea of the components that make up a diesel system, and what they do, understanding how the system works in a more cohesive way isn’t difficult. At Harold's Used Auto Parts Inc in Philadelphia we understand what’s going on in your fuel system while your diesel engine is running.

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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