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Vehicle Parts

Vehicle Parts are mainly composed of auto parts and marine parts. They are commonly used in trucks, motor vehicles, watercraft, etc. Auto parts and marine accessories include rocker switches, rotary switches, toggle switches, push switches, battery switches, switch panels, car cigarette lighters, car USB sockets, bus bars, relays and more.  They can replace worn or damaged original parts of the car and also provide more comfort, convenience, performance and safety.

Auto Switch

With years of experience and knowledge in this domain, we are engaged in offering an excellent range of Auto Switch. Our provided switch is used for controlling electric power. This switch is precisely manufactured at our technically sound manufacturing unit making use of premium grade components and innovative techniques. Due to its striking features, this switch is highly acknowledged by our patrons.

Marine Switch

The waterproof marine rocker switch is widely used in cars, jeeps, rzr, RV, ATV, utv, marine boat, and so on, to control led light bar, led work light, fog lamps, headlights, taillights, auxiliary lamps, etc. We have a non-light (2 pins), one LED (3 pins), and a double LED( 5 Pins) design for your choice. Rated at 20amp/12v and 10amp/24v. The most popular is the switch with ON-OFF (SPST) function.

Battery Switch

Battery Disconnect Switches work by physically cut off the battery’s connection and the rest of the electrical system. There have Different Types of Battery Isolator Switches for your choice, the most common stypes are knife blade master switch, rotary kill switch, lever-type battery switch (keyed cutoff switch). We offer single and double pole (2 pole) configurations, various mounting and locking alternatives as well as different shapes and colors of the operating handles. The power shut off switch disconnects range from 200 A to 500 A, used for DC 12 - 48V systems. It be made with heavy duty, usually ON OFF 2 positions, and are designed to operate at temperatures between -40°C and +85°C. Widely used for car, motorcycle,vehicle,marine boat, RV, camper, travel trailer, truck, ATV, UTV, battery banks and other devices. Easy to install & simple to use..If you have any problem during the use, we will try our best to offer you with satisfactory and friendly service.

Switch Panel

Having a perfect and distinctive car is the dream of each of us. But I am not rich, or I am rich, but the existing cars on the market can not satisfy my thoughts, Oh, so distressed. Well, why not try to use your own hands to modify your car, it will be very interesting, and it will make you feel more deeply with your car. In order to achieve this wonderful wish, our company has prepared a variety of practical accessories for your DIY use, such as Auto Marine Switches, Cigarette Plugs&Power Sockets, Ammeters, DC Voltmeters, USB Chargers, Auto Switch Panels, LED Indicators and so on. They are simple to install and have a beautiful appearance. Control your lightbars, spotlights, strobes and other work lighting on your wrecker or rollback with switch panels and switches from Daier. Our electrical hardware department carries switches from a single toggle and rocker to multi-function panels. Update or repair your system today with new parts from us.

Car USB Charger

We produce all kinds of 12V car USB charger sockets, they are widely used for 12/24V cars, boats, Marine, Bus, Truck, Golf Cart, RV, Motorcycle, etc. In order to satisfy different customers, we have 2.1A, 3.1A, 4.2A, 4.8A, QC3.0, and the USB outlet material can be plastic or Aluminum alloy for your choice. The 12 volt USB Outlet with dual USB power ports, certified by CE & ROHS with Over-load, Over-current, and Short Circuit Protection to ensure charging safety, guard the safety of your devices. IP66 waterproof grade does a good job on marine, boat, and motorbike.


Bus bars are designed to be a solid connection point from one power source to multiple branch circuits, or many branch circuits back to one power source. Switch panels are used as the positive distribution method and bus bars are typically used for the negative side of the circuit. Daier's 12v busburs come in a variety of different combinations of terminal studs and screws. The terminal studs and screws of any electrical system are the connectors which keep the current flowing. Daier's connectors reduce heat and improve efficiency and reliability in vehicle and boat electrical systems.


A relay is an electrically operated switch. It consists of a set of input terminals for a single or multiple control signals, and a set of operating contact terminals. The switch may have any number of contacts in multiple contact forms, such as make contacts, break contacts, or combinations thereof. Automotive relays are the common type of electromechanical relay that are used in all types of vehicles, like car, trucks, vans and trailers. They enable a small current flow circuit to control and operate a higher current circuit in vehicular applications. Daier's automotive relays are designed for DC voltages for passenger comfort and infotainment systems and for power levels in harsh environments. Our portfolio is designed to provide switching capabilities that support the modern electrical conveniences and advanced safety features of today's vehicles.

Other Vehicle Parts

Daier's other vehicle parts division is divided into two major categories, replacement parts and accessories. Replacement parts are automotive parts that are manufactured or remanufactured to replace worn or damaged originals. Accessories are parts that are manufactured for comfort, convenience, performance, safety or customization and are intended to be an add-on part of a motor vehicle after the original sale. Other vehicle parts accessories include audio/video equipment, cameras, low-voltage power systems, gauges and meters, ignition systems, lighting and signal systems, sensors, starting systems, wiring harnesses and more.

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