At Harold's Used Auto Parts Inc in Philadelphia, PA, we have the facilities, equipment, and technicians necessary to complete any job, no matter how big or small. When it comes to fleet and diesel trucks, the right people with the correct equipment makes all the difference - we’ll keep your truck reliably on the road, and we’re the fastest, most efficient repair facility in the business. When it comes to trucks this size, and this valuable, cut-rate maintenance and repair simply won’t do; you need professionals, with the tools and equipment necessary to get the job done right.

If you own or operate a fleet or commercial truck, you know how quickly miles rack up and oil changes are needed. At Harold's Used Auto Parts Inc in Philadelphia, PA, our main goal is to keep your trucks on the road - a huge part of that is changing your oil on time.

If you own or operate a fleet of vehicles or a commercial truck, chances are you’ve encountered a bad ball joint or two. How do you catch one before it breaks, and why is it important? Harold's Used Auto Parts Inc in Philadelphia, PA has the answers.

If you own or operate a fleet or commercial truck, there’s a lot that factors into having a major repair done on one of your vehicles. At Harold's Used Auto Parts Inc in Philadelphia, PA, we’re here to help you make the right choice.

Balanced wheels are essential for a multitude of reasons, particularly on commercial trucks. At Harold's Used Auto Parts Inc in Philadelphia, PA, we have the precision equipment necessary to provide you with the best balance possible, keeping your truck smoothly and reliably on the road.

At Harold's Used Auto Parts Inc in Philadelphia, our expert mechanics are here to work for you. On large commercial trucks, there’s one component that works harder than almost all the rest; your brakes. Our technicians have the knowledge and ability necessary to have your truck stopping like the day it rolled off the lot, no matter what the problem is.

Obviously, your fuel delivery system is an extremely important aspect of the running condition of your truck. At Harold's Used Auto Parts Inc in Philadelphia, our expert team of mechanics can treat and clean your fuel delivery system, ensuring you get the most out of your fleet.

If you’ve ever been behind the wheel of a commercial truck, you already know that driving in reverse isn’t easy. At Harold's Used Auto Parts Inc in Philadelphia, most of the damage we see is a result of an accident which occurred in reverse.

Regular maintenance checks of your vehicle will help you avoid a catalytic converter that looks like this resulting in large repair costs which is what our team here at Harold's Used Auto Parts Inc in Philadelphia want to avoid at all costs! We feel that every customer has a need to know what repairs are in their future and exactly how to budget for them if need be so we check your vehicle thoroughly and keep you informed.

There are several indicators that your catalytic converter isn't functioning at maximum capacity such as:

While most fleet vehicles are chosen for their reliability, low maintenance, and durability, sometimes maintaining several of them at a time can become overwhelming. Let Harold's Used Auto Parts Inc in Philadelphia, PA put your mind at ease, with our fleet maintenance programs for any and all fleet vehicles.

It isn’t easy keeping your fleet or commercial trucks up and running. At Harold's Used Auto Parts Inc in Philadelphia, PA, we’re here to help. Fleet and commercial vehicles log a lot of miles, and a lot of hours - as a result, even the most reliable components need to be serviced occasionally. On an ordinary diesel, an injection pump may last the entire life of the engine itself. On vehicles that work harder than anything else on the road, this isn’t always the case. 

With fleet trucks and large diesels, one issue plagues them more than any other; neglected maintenance or repair. At Harold's Used Auto Parts Inc in Philadelphia, PA, we can take care of your entire fleet, no matter how big or small, making sure it stays on the road for years to come.

While fleet trucks and vehicles tend to persist as some of the more simplistic vehicles on the road, the modernization and computerization of the automotive world has not left them untouched. These days, everything is equipped with computer systems, sensors, modules, and more. At Harold's Used Auto Parts Inc in Philadelphia, PA, our professional technicians have the knowledge, equipment, and ability necessary to provide the accurate and vital diagnostics required to keep your fleet on the road.

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.

The transmission in your truck works harder than any other on the road. A fully loaded semi weighs about 40 times as much as a normal passenger vehicle, and racks up twice the mileage. As such, it’s essential to keep your transmission in good shape and regularly maintenanced. Fortunately, Harold's Used Auto Parts Inc in Philadelphia has you covered.

At Harold's Used Auto Parts Inc in Philadelphia, we understand that big trucks mean bigger risk on the road. Here are some tips to remember, to reduce the likelihood of an accident resulting in large repair costs next time you're on the job.

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.

At Harold's Used Auto Parts Inc in Philadelphia, PA, our priority is keeping your Dodge, Chevy, or Ford truck reliably on the road. A major aspect of that is catching small issues before they become bigger ones.

The automotive market is always fast-changing, and leaps and bounds have been made in the past couple of decades concerning both diesel and gasoline engines. With gasoline-powered trucks achieving more power than ever, purchase costs being lower, and fuel costs at an all-time low, many fleets are switching over to gasoline-powered fleets. However, diesel still offers some distinct advantages - it really depends on what you're looking for for your fleet of vehicles. Here are some points to consider, from Harold's Used Auto Parts Inc in Philadelphia, PA.