Carbon brushes (motor brushes) for automobile

Spare: Carbon brushes original

Information - Carbon brushes

Alternator brushes: replacement and selection

When and why it is necessary to replace alternator brushes

The alternator brushes have no lifetime limit specified and are to be replaced in case of significant abrasion of old ones. Specialists recommend to perform inspection of brushes condition every 4 years or 50 000 kilometers of mileage.

The cause of brushes premature breakdown is failures in alternator operation. In particular, inter-turn short circuit of a stator or rotor can cause negative impact on parts condition.

The signs of brushes wear-out are insufficient battery charge or its absence, voltage fluctuations in the car mains. Sudden turning off of electric equipment or dimming of light in the cabin or headlights can be noticeable during this.

Works on components installation are performed at a car servicing station. This is determined by necessity of alternator demounting and inaccessibility of the components, fastened in the brush holder. In the process of new elements installation it is recommended to assess condition of the diode bridge.

By necessity, this component should be replaced too. Pay attention: if the brushes are combined with the regulator relay – this unit is replaced as an assembly.

How to select alternator brushes

The parts differ by production material. The most common are copper-graphite and carbon alternator brushes, however there are other types as well. The copper-graphite items serve longer, but at the same time cost significantly more than the carbon ones.

High-quality alternator brushes, able to provide high efficiency of the unit are produced by well-known spare parts manufacturers, who gained good reputation on the market. Bosch, Valeo, Era, DT, Magneti Marelli are among such firms.

The components differ by amount of working voltage, linear speed, current intensity, cable length and dimensions. During selection you need to consider the information, provided in the car operation manual.

Carbon brushes (motor brushes) at low cost: Top Spares

Slip Ring, alternator (MESSMER, 214001) -28%
original Slip Ring, alternator MESSMER 214001 Article №: 214001
MESSMER Slip Ring, alternator 214001
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£ 2,15
incl. 20% VAT, Shipping
Over 100 items in stock
  • Height [mm] 26
  • Inner diameter [mm] 7,15
  • Diameter [mm] 16,1
  • Condition  New
Details
Alternator Freewheel Clutch with accessories (BOSCH, F 00M 599 534) -28%
original Alternator Freewheel Clutch BOSCH F 00M 599 534 Article №: F 00M 599 534
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£ 28,43
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Over 100 items in stock
  • Supplementary Article/Supplementary Info with accessories
  • Condition  New
Details
Carbon Brush, alternator (BOSCH, 1 127 014 022) -28%
original Carbon Brush, alternator BOSCH 1 127 014 022 Article №: 1 127 014 022
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£ 3,59
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Over 100 items in stock
  • Alternator type for alternator
  • Condition  New
Details
Carbon Brush, alternator (MESSMER, 231069) -28%
original Carbon Brush, alternator MESSMER 231069 Article №: 231069
MESSMER Carbon Brush, alternator 231069
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£ 0,71
incl. 20% VAT, Shipping
Over 100 items in stock
  • Thickness [mm] 4,60
  • Length [mm] 14,50
  • Height [mm] 6,40
  • Cable Length [mm] 50,00
  • Operating voltage [V] 14, 28
  • Condition  New
Details
Alternator Freewheel Clutch 42,4mm, Requires special tools for mounting (CONTITECH, AP9001) -28%
original Alternator Freewheel Clutch CONTITECH AP9001 Article №: AP9001
CONTITECH Alternator Freewheel Clutch AP9001
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Over 100 items in stock
  • Diameter [mm] 61,0/17,0
  • Width [mm] 42,4
  • Weight [kg] 0,542
  • Supplementary Article/Info 2 Requires special tools for mounting
  • Packaging length [cm] 11
  • Packaging width [cm] 9
  • Packaging height [cm] 6
  • Condition  New
Details
Alternator Freewheel Clutch 41,15mm, Requires special tools for mounting (VALEO, 588001) -28%
original Alternator Freewheel Clutch VALEO 588001 Article №: 588001
VALEO Alternator Freewheel Clutch 588001
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£ 17,63
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Over 100 items in stock
  • Diameter [mm] 55,8
  • Width [mm] 41,15
  • Thread Size M16
  • Number of ribs 6
  • Depth [mm] 11,1
  • Bore Ø [mm] 17
  • Bolt Head-/Nut Design Torx
  • Rotation Direction Clockwise rotation
  • Supplementary Article/Info 2 Requires special tools for mounting
  • Weight [kg] 0,56
  • Condition  New
Details
Carbon Brush, alternator (MESSMER, 231070) -28%
original Carbon Brush, alternator MESSMER 231070 Article №: 231070
MESSMER Carbon Brush, alternator 231070
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£ 0,71
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Over 100 items in stock
  • Thickness [mm] 4,00
  • Length [mm] 19,50
  • Height [mm] 7,00
  • Cable Length [mm] 96,00
  • Operating voltage [V] 14
  • Condition  New
Details
Alternator Freewheel Clutch 40,6mm, Requires special tools for mounting (INA, 535 0121 10) -28%
original Alternator Freewheel Clutch INA 535 0121 10 Article №: 535 0121 10
INA Alternator Freewheel Clutch 535 0121 10
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Over 100 items in stock
  • Number of ribs 5
  • for manufacturer number F-553392.XX
  • Supplementary Article/Info 2 Requires special tools for mounting
  • Width [mm] 40,6
  • Diameter [mm] 54,0/17,0
  • Condition  New
Details
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