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Watch: Are You Selling Belts In Kits?

Kits can solve a range of problems and can include parts such as an alternator decoupler pulley. They also can feature all the parts needed for service to the accessory drive.

Watch: What’s Your Automotive Belt IQ?

Belts are common replacement parts that most part stores stock. Every motor vehicle on the road has one or more belts and there are many types of them.

Watch: How Do Hub Bearings Affect Braking Safety?

Hub bearings include the wheel speed sensor that controls the anti-lock braking system (ABS). This sensor sends a constant signal to the ABS control system, telling it how fast each wheel is turning.

WATCH: Why a Wheel Hub Assembly Is So Important

Made of precision-manufactured bearings, seals and sensors in one pre-assembled unit, a wheel hub bearing unit is critical to performance — from the smoothness of the ride, to fuel efficiency and the integrity of anti-lock braking systems.

Leading Causes Of Wheel Bearing Failure: WATCH

The inside of a bearing can be a hot place. When a bearing is cooling off, the contracting metal, air and lubricant can create a vacuum that is usually held by the seals.

WATCH: Wheel Hub Units Offer Easier Installation, Increased Reliability

Hub assemblies are unitized, maintenance-free and non-serviceable parts that are preset, pre-greased and pre-sealed.

WATCH: 4 Things To Keep In Mind When Selling Oxygen Sensors

Inputs from the O2 sensors are used by the engine management system to adjust the fuel mixture. This is critical for maintaining low emissions and good fuel economy.

WATCH: Is Your Customer Diagnosing A Clutch Problem?

If your professional technician customer is diagnosing a clutch problem, they need the right tools and knowledge of how the parts work together to successfully identify the problem.

WATCH: How Do Dual-Clutch Transmissions Work?

They’ve been around for a while. Since 2003, to be exact, when Volkswagen began building them into their road cars.

WATCH: A Deep Dive On Oxygen Sensors

At its core, an engine’s computer needs to know what the fuel mixture is with a high degree of precision so it can optimize fuel economy as well as emissions.

WATCH: Things To Remember About Dual-Mass Flywheels

As with all mechanical parts in a vehicle, things can go wrong. Here are some conditions to check for when diagnosing a dual-mass flywheel.

WATCH: We’re Talking Metal — Platinum And Iridium, That Is, And How They Make Spark Plugs Great

There are different types of metal used in spark plug electrodes. Whether it’s copper, platinum or iridium, different metals bring different characteristics and uses to spark plugs.