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Car electrics parts

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Electric system car spares for Top Car brand

Electric system: parts for top car models

Electrics car parts - all important information about operating method, mounting, diagnostics and service life

Car electrical parts are a set of units which store and produce electricity and also consume it to perform various tasks. Most systems in a modern vehicle have devices powered by electricity.

Design of a car electrical system

The key components of car electrics are:

  • Battery – this is an electrochemical device which can receive, accumulate and release a charge. It supplies power to the starter. It also serves as the auxiliary power source for the vehicle mains when the engine isn’t running.
  • Starter motor – this is a direct current motor which converts electrical energy into mechanical. It is used for initial engine cranking. It switches off as soon as the internal combustion engine starts running under its own power.
  • Alternator – this converts the mechanical energy of the rotating crankshaft into electrical. This device powers all electrical consumers when the engine is running and charges the battery as well.
  • Ignition switch – with this, the driver initiates the power supply to the ignition system, starter motor, fuel pump, instrument panel, and other equipment.
  • Wiring – this transfers electricity from one device to another.
  • Relays – these are switching units which open and close the electrical circuits they are connected to.
  • Fuses – these are devices designed to protect various car electrical parts from voltage spikes. When allowable values are exceeded, the fuses blow and open the circuits.
  • Other energy-consuming devices – these include lights, electric window regulators, windscreen wipers, heated seats, various sensors, and other devices powered by electricity.

Maintenance advice

  • Keep your engine compartment clean. Dirt and moisture have a detrimental effect on electrical contacts.
  • You should always make sure that all connectors are secure. Poor contact may melt or burn the connectors.
  • During any car repairs, be sure to disconnect the negative battery terminal. At the same time, if needed, you can remove oxidation and dirt from contacts and terminals.
  • Avoid over-discharging your battery. This may lead to battery cell sulfation.
  • When you install a new fuse, always make sure that it corresponds to the vehicle specifications, or else the whole circuit may get burnt.
  • Don’t crank the engine with the starter for too long. You should take a break after several unsuccessful attempts.
  • Replace the alternator drive belt in due time. Always make sure that it is properly tensioned.

Symptoms of malfunction

Malfunctions in car electrics often result in problems starting the engine. They might be caused by poor contact in the ignition switch or battery terminals, or faulty starter components. In some cases, the engine won’t start at all. Sometimes, the battery doesn’t charge properly during driving or, conversely, gets overcharged. These are symptoms of a failing alternator voltage regulator. Poor spark plug performance, headlight dimming while driving or the audio system switching off on its own indicate a faulty diode bridge. In some cases, the starter won’t stop working even when the engine is running. This symptom indicates a bad starter solenoid or overrunning clutch. If wires or connectors melt due to a bad contact, you may smell burning inside the car.

Causes of malfunction

Many malfunctions of electrics in a vehicle are caused by natural wear and tear of particular assemblies. For example, alternator brushes wear out over time and have to be replaced, as does the drive belt. Sometimes device malfunctions are connected with the misuse or neglect of certain assemblies. For example, constant exposure to freezing cold will deteriorate your battery very quickly. You also shouldn’t overload the starter.

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Our online store is the best place to buy components for car electrics. What’s more, if your order is above a certain amount, you’ll get free shipping.

Replacement of Electric system car parts: Video repair guide

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Top 15 of best sellers from the Electric system section

Recommended spare parts from the Electrics section. These are the sales hits. Buy our best sellling items or discover a vast selection of other attractive offers.

Buy Battery EXIDE ES900 - Electric system parts online
Parts Details
  • Product line: EQUIPMENT
  • Battery Capacity [Ah]: 80
  • Battery: Gel Battery
  • Post Positions 0
  • Hold-down Type: B0
  • Cold-test Current, EN [A]: 540
  • Length [mm]: 350
  • Width [mm]: 175
  • Height [mm]: 190
  • Voltage [V]: 12
  • Supplementary Info: Equipment GEL
  • Rated Power [Wh]: 900
  • EXIDE: Battery
  • Item number: ES900
  • Our price: £ 188,95
  • Condition: New
Details
EXIDE ES900 Battery
Article number: ES900
£ 188,95
price incl. 20% VAT, free delivery
Buy Relay BOSCH 0 332 002 156 - Electrics parts online
Parts Details
  • Combi Switch Function: without light dimmer function
  • Current Strength [A]: 75
  • Voltage [V]: 12
  • Relay function: Normally open contact
  • Housing Type: Synthetic Material Housing
  • Temperature range from [°C]: -40
  • Temperature range to [°C]: 100
  • Protection Type (IP Code): IP54
  • Colour: black / grey
  • Supplementary Article / Supplementary Info: without holder
  • Resistor [Ohm]: 46
  • BOSCH: Relay
  • Item number: 0 332 002 156
  • Our price: £ 31,68
  • Condition: New
Details
BOSCH 0 332 002 156 Relay
Article number: 0 332 002 156
£ 31,68
price incl. 20% VAT, excl. delivery costs
Buy Trailer Plug HELLA 8JA 005 951-041 - Electric system parts online
Parts Details
  • Colour: silver
  • Voltage [V]: 12
  • Contact surface: Coated
  • Cross Section [mm²] from: 1,5
  • Cross Section [mm²] to: 2,5
  • Socket Width [mm]: 6,3
  • Length [mm]: 94
  • Current Strength from [A]: 16
  • Current Strength to [A]: 25
  • Material: Aluminium
  • Mounting Type: Flat Plug-in Connector
  • Number of pins: 7
  • DIN / ISO: 1724 N-Typ
  • Assy. / disassy. by qualified personnel required!
  • HELLA: Trailer Plug
  • Item number: 8JA 005 951-041
  • Our price: £ 14,03
  • Condition: New
Details
HELLA 8JA 005 951-041 Trailer Plug
Article number: 8JA 005 951-041
£ 14,03
(Price per item)
price incl. 20% VAT, excl. delivery costs
Buy Hazard Light Switch HELLA 6HD 002 535-101 - Electrics parts online
Parts Details
  • Mounting Type: Fitting
  • Supplementary Article / Supplementary Info Info 2: with splash-water protection
  • Supplementary Article / Supplementary Info: with bulb
  • Voltage [V]: 12
  • Control Type: Pull switch control
  • Cable Length [mm]: 600
  • Light Design: Halogen
  • Lamp Type: W1,2W
  • Assy. / disassy. by qualified personnel required!
  • HELLA: Hazard Light Switch
  • Item number: 6HD 002 535-101
  • Our price: £ 120,67
  • Condition: New
Details
HELLA 6HD 002 535-101 Hazard Light Switch
Article number: 6HD 002 535-101
£ 120,67
price incl. 20% VAT, excl. delivery costs
-54%
Wiper motor TOPRAN 108 792 - Electric system spare parts order
Parts Details
  • Connector Shape: rectangular
  • Fitting Position: Vehicle Windscreen
  • Voltage [V]: 12
  • Number of pins: 5
  • Supplementary Article / Supplementary Info Info 2: with nut
  • for shaft diameter [mm]: 8
  • Fastening Type: 3-point attachment
  • TOPRAN: Wiper motor
  • Item number: 108 792
  • Our price: £ 29,45
  • Condition: New
Details
TOPRAN 108 792 001 Wiper motor
Article number: 108 792
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

£ 64,99
£ 29,45
price incl. 20% VAT, excl. delivery costs
-67%
Aerial BERU A350 - Electrics spare parts order

Evaluation

V.V. 13.05.2023

Need me original parts.

Show all reviews
Parts Details
  • Type: telescopic
  • Length [cm]: 100
  • Operating Mode: Electric
  • Cable Length [mm]: 1400
  • BERU: Aerial
  • Item number: A350
  • Our price: £ 43,86
  • Condition: New
Details
BERU A 350 Aerial
Article number: A350
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

£ 133,25
£ 43,86
price incl. 20% VAT, excl. delivery costs
-55%
Bulb, spotlight OSRAM 64193 - Electric system spare parts order
Parts Details
  • Product line: ORIGINAL LINE
  • Lamp Type: H4
  • Light Design: Halogen
  • Rated Power [W]: 60 / 55
  • Voltage [V]: 12
  • Colour Temperature [K]: 3200
  • Socket Type bulb: P43t
  • OSRAM: Bulb, spotlight
  • Item number: 64193
  • Condition: New
Details
OSRAM H4 Bulb, spotlight
Article number: 64193
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

£ 7,73
£ 3,45
(Price per item)
price incl. 20% VAT, excl. delivery costs
Battery EXIDE EA640 - Electrics spare parts order

Evaluation

N.W. 21.02.2024

Straight swap. Just what I needed.

Show all reviews
Parts Details
  • Product line: PREMIUM
  • Battery Capacity [Ah]: 64
  • Battery: Lead-acid battery
  • Post Positions 0
  • Hold-down Type: B13
  • Cold-test Current, EN [A]: 640
  • Length [mm]: 242
  • Width [mm]: 175
  • Height [mm]: 190
  • Voltage [V]: 12
  • DIN / ISO: L2
  • Terminal Type: 1, EN
  • EXIDE: Battery
  • Item number: EA640
  • Our price: £ 70,97
  • Condition: New
Details
EXIDE 027TE Battery
Article number: EA640
£ 70,97
price incl. 20% VAT, free delivery
Electric system parts - Tyre pressure sensor (TPMS) SCHRADER 3023
Parts Details
  • Test Mark: CE
  • Code Letter: 3023
  • Tightening Torque [Nm]: 00
  • Mounting Type: Plugged
  • Vehicle Equipment: for vehicles with tyre-pressure monitoring system
  • Supplementary Article / Supplementary Info Info 2: with screw, with valves
  • Permissible maximum speed [km / h]: 210
  • Housing Colour: black
  • Frequency Range [MHz]: 433
  • Valve stem material: Rubber with copper mesh lining
  • Valve colour: black
  • SCHRADER: Tyre pressure sensor (TPMS)
  • Item number: 3023
  • Condition: New
Details
SCHRADER 3023 Tyre pressure sensor (TPMS)
Article number: 3023
£ 19,21
price incl. 20% VAT, excl. delivery costs
Electrics parts - Tyre pressure sensor (TPMS) SCHRADER 3041
Parts Details
  • Test Mark: CE
  • Code Letter: 3041
  • Tightening Torque [Nm]: 00
  • Mounting Type: Plugged
  • Vehicle Equipment: for vehicles with tyre-pressure monitoring system
  • Supplementary Article / Supplementary Info Info 2: with screw, with valves
  • Permissible maximum speed [km / h]: 210
  • Housing Colour: black / white
  • Frequency Range [MHz]: 433
  • Valve stem material: Rubber with copper mesh lining
  • Valve colour: black
  • SCHRADER: Tyre pressure sensor (TPMS)
  • Item number: 3041
  • Condition: New
Details
SCHRADER 3041 Tyre pressure sensor (TPMS)
Article number: 3041
£ 28,61
price incl. 20% VAT, excl. delivery costs
Electric system parts - Socket Adapter WESTFALIA 921557321002
Parts Details
  • WESTFALIA: Socket Adapter
  • Item number: 921557321002
  • Our price: £ 43,86
  • Condition: New
Details
WESTFALIA 921557321002 Socket Adapter
Article number: 921557321002
£ 43,86
price incl. 20% VAT, excl. delivery costs
Electrics parts - Battery BOSCH 0 092 S40 040

Evaluation

G.K. 30.01.2024

good battery, car starts like new

Show all reviews
Parts Details
  • Product line: S4
  • Battery Capacity [Ah]: 60
  • Battery: Lead-acid battery
  • Hold-down Type: B13
  • Cold-test Current, EN [A]: 540
  • Length [mm]: 242
  • Width [mm]: 175
  • Height [mm]: 175
  • Voltage [V]: 12
  • DIN / ISO: LB2
  • Terminal Type: 1
  • BOSCH: Battery
  • Item number: 0 092 S40 040
  • Our price: £ 89,81
  • Condition: New
Details
BOSCH S4 004 Battery
Article number: 0 092 S40 040
£ 89,81
price incl. 20% VAT, free delivery
Electric system parts - Pressure converter, turbocharger PIERBURG 7.00868.02.0

Evaluation

A.A. 02.09.2023

C'est la première fois que je commande ce produit, je ne connais pas la taille. Je sais que votre magasin m'offre de bonnes choses et de la taille. Alors je te le laisse

J.W. 17.09.2022

Excellent. Works perfectly, easy to fit. Good quality part.

Show all reviews
Parts Details
  • Operating Mode: Electric-pneumatic
  • Voltage [V]: 12
  • PIERBURG: Pressure converter, turbocharger
  • Item number: 7.00868.02.0
  • Our price: £ 41,94
  • Condition: New
Details
PIERBURG 7.00868.02.0 Pressure converter, turbocharger
Article number: 7.00868.02.0
£ 41,94
price incl. 20% VAT, excl. delivery costs
Electrics parts - Battery BOSCH 0 092 S40 010
Parts Details
  • Product line: S4
  • Battery Capacity [Ah]: 44
  • Battery: Lead-acid battery
  • Hold-down Type: B13
  • Cold-test Current, EN [A]: 440
  • Length [mm]: 207
  • Width [mm]: 175
  • Height [mm]: 175
  • Voltage [V]: 12
  • DIN / ISO: LB1
  • Terminal Type: 1
  • BOSCH: Battery
  • Item number: 0 092 S40 010
  • Our price: £ 72,33
  • Condition: New
Details
BOSCH S4 001 Battery
Article number: 0 092 S40 010
£ 72,33
price incl. 20% VAT, free delivery
-40%
Electric system parts - Aerial BERU A200
Parts Details
  • Type: telescopic
  • Operating Mode: Manual
  • Cable Length [mm]: 1400
  • BERU: Aerial
  • Item number: A200
  • Our price: £ 13,25
  • Condition: New
Details
BERU A 200 Aerial
Article number: A200
RRP

RRP is the recommended retail price set by the manufacturer or importer of the product and provided by the manufacturer, supplier or retailer. AUTODOC displays the RRP (VAT incl.) for a product if it has been received from at least one supplier or another source that has such information.

£ 22,34
£ 13,25
price incl. 20% VAT, excl. delivery costs

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