The trucking industry is one of the country’s largest, and it has been growing significantly over the past few years. In 2019 alone, it moved about 11.84 billion tons of freight, generating an estimated $791.7 billion in revenue, according to the American Trucking Associations, the largest national trade association for the trucking industry. It serves the American economy mainly by transporting goods—from manufacturing plants to retail distribution centers—across overland routes. 

Apart from delivering goods, heavy-duty trucks are also used for other purposes, such as towing, moving large appliances and furniture, and hauling. Due to these crucial tasks, these trucks are designed to be robust, ensuring they won’t break down easily. They are even equipped with large engines, strong transmissions, and a reliable braking system, as they are designed to perform heavy work, especially on job sites. 

However, no matter how rigid heavy-duty trucks are, they too don’t last forever. While proper driving habits, regular inspections, and periodic maintenance can help extend the lifespan of various truck parts, some components will eventually need replacement. Beyond the primary wear items, being aware of other frequent mechanical issues and their prevention is a major part of successful fleet management. And here are the top 3 most commonly replaced truck parts: 

Brake Pads

Bringing the truck to a stop is just as important as getting it started. A truck that won’t start may not put your safety at risk, but a vehicle that won’t stop is a rolling death trap. That is why, before you hit the road, you must ensure that all your brake system components, such as the brake pads, are in good working condition. 

The brake pads are the ones that bear the brunt of the direct force when the brakes are applied. So, they are among the most commonly replaced parts in heavy-duty vehicles. Although on most trucks they are expected to be replaced after three to five years, their actual lifespan depends on several factors, including your driving style, the type of driving you do, how often you drive your vehicle, and whether you frequently encounter stop-and-go traffic. 

Stop-and-go traffic is particularly harsh on brake pads, and the same is true for those who frequently drive and stop quickly. Avoid these at all costs, and be wary of the symptoms of bad brake pads. Squealing or screeching noises, deep metallic grinding, and a growling sound, along with a thickness of less than a quarter-inch, often indicate that your brake pads already need replacement. If you notice these signs, it is often helpful to start diagnosing broader braking system faults to ensure the rotors and air lines are also functioning correctly.

Clutch

Drivers of manually transmitted trucks are all too aware of the crucial role the clutch plays. It is the workhorse that allows any manual transmission vehicle to move from point A to point B. Every start, every stop, and every gear change means the clutch is doing its job well. 

Due to their critical function, heavy-duty clutches made from premium-grade materials and built to withstand harsh operating conditions are used on larger vehicles. But, just like any other truck component, these too are bound to get damaged or wear out over time. The good thing, though, is that they give you plenty of notice when they’re nearing the end of their service life, allowing you to get a replacement before they totally fail. 

When the clutch starts to go bad, you will notice any of these signs: a squealing or chirping sound, a loud grinding noise, and a fast engine but a slow truck. You will also begin to notice that your truck can no longer be shifted into gear mode; additionally, it starts to become noisy when in neutral gear position, but quiet when the clutch is held down. 

Early detection of any of these bad clutch symptoms can help prevent accidents, avoid unnecessary breakdowns, and prevent costly downtime. Therefore, ensure that this transmission part is included in your regular truck maintenance checklist. Following a strict schedule is one of the most reliable strategies for keeping your rig road-ready regardless of the haul.

Tires

The sight of a trucker trying to replace one of his tires on the side of the highway is relatively common. That is because extensive driving time tends to wear the tire tread down faster. And when you add bad driving habits to the mix, a blown-out tire is like a ticking time bomb waiting to explode. 

Heavy-duty tires are responsible for your truck’s traction on the road, and they are expected to last well over 100,000 miles. While some trucks have tires that appear to be in usable condition even beyond this mileage, most of them warrant replacement tires earlier, especially those that are used excessively, carry heavy loads, and frequently drive on unpaved roads.

So, how do you know if it’s time to replace your truck’s tires? The first and easiest way to check if your truck already needs new tires is to check the tire tread. The tread is the part of the tire made from rubber that makes contact with the road. It deteriorates over time, becoming thin, which makes the tire more susceptible to punctures and can lead to sudden blowouts. 

Cracks, uneven wear, and bulges are also indicators of a bad tire. These could mean that something is wrong with your alignment or your tire is on its way out. Either way, you need to have the tire checked and replace it if necessary. Addressing these issues immediately is an essential part of minimizing expensive vehicle repair bills over the long term.

To maximize the life of your tires, make sure to check them regularly. Take note that the maximum life of any truck tire is ten years from its manufacture date. When the tire passes that point, replace it, even if it appears to be in usable condition and has not worn down to the tread indicator. Knowing these top three most commonly replaced truck parts can help you plan your replacement schedule well. You can also review a more extensive list of frequently replaced truck components to better prepare for your next shop visit.

When it’s time to get new brake pads and clutches, don’t go searching anywhere else. FinditParts carries a vast selection of heavy duty brake pads, clutch, and tire repair products for your servicing and maintenance needs. We offer these products at competitive prices with guaranteed fast and reliable shipping. Feel free to browse our online catalog to find the exact part that you need.