
Bosch generator carbon brush kit for Volvo B4B
PV, Duett
- Model year:
- 1947–1957
- Engine:
- B4B
- Info:
- Dynamo, 6V
- Quantity per car:
- Sold per piece
Weak or unsteady charging on a B4B is often a sign of worn brushes or a tired bearing in the Bosch generator – both are among the natural wear points on the early 6-volt system in the 444 and 445. This category gathers spare parts for overhauling this particular generator type.

PV, Duett

Duett, PV, Amazon, 140

PV, Duett, Amazon, 1800, 140, 164, 260, 240

PV, Duett, Amazon, 1800, 140, 164, 260, 240

PV, Duett, Amazon, 1800, 140, 164, 260, 240, 780, 760, 740, 960, 940

PV, Duett, Amazon, 1800, 164, 140, 240, 260, 740, 760, 780, 960, 940

PV, Duett, Amazon, 1800, 140, 164, 260, 240

PV, Duett, Amazon, 1800, 164, 140, 240, 260, 740, 780, 760, 940, 960
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The group includes brush sets, ball bearings, nuts plus spring and toothed washers. During a rebuild, the length of the brushes, the surface of the commutator and the play in the bearings are typical inspection points before the generator is refitted. Since the 544/445 with B4B runs 6 volts, you should check that the parts fit the version and your model year before ordering.