Menu
Cart 0
Four carbon brushes grouped together, viewed from above-front. Braided copper leads visible in varying lengths — two longer woven leads and two shorter stiffer leads. Carbon body surfaces appear clean and unworn, consistent with new old stock.
Carbon brush set - GB306 - Bosch - NOS
Four brushes angled to show the contact face of each. Embossed marking visible on face of each brush — appears to read 'D42'. Leads exit from top of brush bodies.
Brushes lying on side showing profile, copper leads extending in different directions. Rectangular cross-section of carbon blocks clearly visible. Minor surface oxidation on lead braid ends consistent with storage age.
Two pairs of brushes stacked, showing end-on profile. Top surface shows the copper lead attachment holes and lead exits. One pair has woven braid leads; the other pair has stiffer twisted copper leads.
Four brushes scattered loosely, top-down view. Variation in lead style between pairs clearly visible — two with flexible woven braid, two with stiff solid copper wire leads. Carbon block dimensions consistent across all four.
Overhead view of all four brushes laid flat. Clean carbon contact faces and copper lead ends visible. No cracking, chipping, or significant wear on any brush body.

Carbon brush set - GB306 - Bosch - NOS

Only 1 left!
Brand Bosch
Part Number GB306
Type Brush Set
Condition New Old Stock

Specifications

  • Pack quantity: 4 brushes
  • Brush profile mix: 2 stepped-shoulder + 2 plain rectangular
  • Brush grade marking: D42
  • Lead type: Braided copper pigtail with tinned ends
  • Brush width (small dimension): 7mm
  • Brush height (medium dimension): 10mm
  • Brush length (long dimension): 14mm

Cross References

Part Numbers Relationship
F005X10113775, 20-110, 20-40857, GB857, 9798 equivalent

Additional Information

  • Genuine Bosch part, boxed in original Robert Bosch (Australia) Pty Ltd packaging
  • Two brushes have a stepped upper shoulder, two are plain rectangular — typical mixed-profile layout for a DC motor brush set with separate field-side and insulated-side positions
  • Brushes are individually stamped with the D42 Bosch carbon grade code
New Old Stock (NOS) — Unused part in original condition. Packaging may show age-related shelf wear. New old stock in original Bosch retail box. Brushes appear unused with clean contact faces. Minor oxidation on lead braid ends consistent with extended shelf storage. Box shows light shelf wear. Electrical components should be tested by a qualified auto electrician before installation. Please confirm this part number suits your vehicle before purchasing.

SKU: CHG-00444

We Also Recommend

Ring terminals - 8.4mm (5/16")

Ring terminals - 8.4mm (5/16")
Blade Insulators - 6.3mm

Blade Insulators - 6.3mm
Starter brush set - 9815 - NOS

Starter brush set - 9815 - NOS
Carbon brush set - GB303 - Bosch - NOS

Carbon brush set - GB303 - Bosch - NOS
Starter brush set - GB857 - Bosch - NOS

Starter brush set - GB857 - Bosch - NOS