Carbon brushes (motor brushes) for automobile
Carbon brushes - Find your car parts
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SEATInformation - 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.
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
Article №: ASL9015 
- Diameter [mm] 14,70
- Inner diameter 2 [mm] 7,00, 8,90
- Height 1 [mm] 9,30
- Height 2 [mm] 9,30
- Length [mm] 37,00
- Outer diameter 2 [mm] 27,30
- Condition New
Article №: 535 0202 10 
- Number of grooves 6
- Width [mm] 40,1
- Diameter [mm] 53,7/17,0
- for manufacturer number F-563424.XX, F-580007.XX
- Supplementary Article/Info 2 Requires special tools for mounting
- Distance to first groove [mm] 13,65
- Condition New
Article №: 535 0194 10 
- Number of grooves 6
- for manufacturer number F-236591.05/.07
- Supplementary Article/Info 2 Requires special tools for mounting
- Observe service information
- Distance to first groove [mm] 12,9
- Condition New
Article №: 214001 
- Height [mm] 26
- Inner diameter [mm] 7,15
- Diameter [mm] 16,1
- Condition New
Article №: 535 0168 10 
- Number of grooves 6
- Width [mm] 45,8
- Diameter [mm] 49,7/17,0
- for manufacturer number F-552901.XX
- Supplementary Article/Info 2 Requires special tools for mounting
- Observe service information
- Distance to first groove [mm] 19,4
- Condition New
Article №: BX204 
- Voltage [V] 12
- Thickness [mm] 4,90
- Width [mm] 8,00
- Height [mm] 19,40
- Condition New
Article №: 588002 
- Diameter [mm] 54,3
- Width [mm] 38,3
- Thread Size M16
- Number of ribs 6
- Depth [mm] 14,4
- Bore Ø [mm] 17
- Bolt Head-/Nut Design Torx
- Rotation Direction Clockwise rotation
- Supplementary Article/Info 2 Requires special tools for mounting
- Weight [kg] 0,5
- Condition New
Article №: 535 0063 10 
- Number of grooves 6
- for manufacturer number F-237101.XX
- Supplementary Article/Info 2 Requires special tools for mounting
- Observe service information
- Distance to first groove [mm] 8
- Condition New
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