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Internal Door Parts

Internal Door Parts

Car doors are available in a variety of styles, sizes, and materials. Aside from protecting passengers within a car, the doors also ensure that everyone has a pleasant ride. The doors protect the interior in addition to being the vehicle's main entry and exit ports. They also assist in preventing outside air and noise from reaching the passenger compartment.

If you're keen on auto repair, we can help you familiarize yourself with the components that make up your vehicle's doors and solve any simple issues that may develop. Your vehicle's doors feature numerous key components such as windows and handles. Some buttons and electronic switches are also found on the inside of your car door. The inside portions and the outer parts of a car door can be separated into two categories.

Car Door Interior Parts

The switches, and the internal systems that regulate the windows, etc., are located on the inside side of the door. The doors will include switches for the windows, locks, and power mirrors (on the driver's side) if the car includes power peripherals.

Door Hinge

The door hinge is the part of the door that connects to the body of the car. It is the device that unlocks and closes the door, just like any other hinge. The majority of door hinges are composed of strong metals like steel.

Weatherstripping and Door Seals

Leaks, moisture, and wind are kept out of the passenger compartment by door seals and weatherstripping. They also aid in the creation of a snug fit between the door and the vehicle's body. They're usually constructed of rubber and can be secured to the door with sealants or specific fasteners.

Door Panel

The power window motor, window regulator, and wiring are covered by the door panel. In older vehicles, door panels were composed of cardboard and upholstered with the same material as interior upholstery. Most newer cars, on the other hand, feature plastic door panels.

Interior Door Handle

You can push the door open by disengaging the door latch with the internal door handle. Plastic is used for the majority of modern interior doorknobs. Inside the door, beneath the door panel, is the linkage for both the internal and external door handles.

Window Regulator

The automobile window regulator is a scissor-like device for raising and lowering the window. According to whether the automobile has power or manual windows, the regulator would either be controlled by a crank or an electric motor. If this component breaks, your power windows may become stuck and unable to roll up or down.

Window Crank Switch

Window Crank Switches enable you to use your vehicle's standard window crank handle to control your electric windows.

Power Window Motor

A tiny electric motor moves the regulator up and down in cars with power windows. The motor, like other window parts, is hidden behind the door panel.

Door Locks and Latches

Latches and locks on car doors keep the door in position and avoid accidental access to the rest of the vehicle. There are two types of door locks: manual and power. Power door locks are controlled by a switch or, in certain situations, a key fob. In addition, most vehicles have a children's safety lock that stops passengers in the backseat from opening the doors.

Door Switch

When the door opens, the ajar door switch turns on the inside dome light. The switch could also be an input to the car's onboard computer for other functions, depending on the model.

Symptoms of Failing Internal Door Parts

Failing Automatic Lock

The automatic door locks on your car may not work for a variety of reasons. A faulty door lock actuator, broken lock switch, or electrical faults are all common culprits. Troubleshooting or expert assistance is frequently required to diagnose the problem.


A failing door weatherstrip or seal can result in leakage. Water or winds may enter the passenger compartment as a result. In this case, you'll have to inspect your weatherstripping or seal and, if necessary, replace it. Weatherstripping is usually simple to remove and reinstall. Depending on your vehicle's year, make, and model, the part might cost anything between $5 to $250.

Hard to Open and Close

A malfunctioning door latch, as well as a rusty or corroded hinge, can make it very difficult to open and close a car. The problem is sometimes resolved by lubricating the hinge or latch. If that doesn't work, you must replace the failed part. Repairing a car door is a difficult task. You should have a repair manual on hand if you decide to address any door issues yourself. If you're unsure about your ability to repair something, you should seek professional help.

Find High-Quality Internal Door Parts and Components Only at Vivid Racing

From fitment help from our in-house experts to shipping packages, we'll take care of you and your Internal Door Parts every step of the way. We know how much of a financial investment you're making in a set of Internal Door Parts, accessories, and upgrades. In return, we'll deliver a service and product that is second to none.

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