Replacement Brushes for Kärcher B 150 R

Brushes used on the Kärcher B 150 R

OEM part numbers are listed for cross-reference only. Sizes are confirmed against your old brush or drawing before production.

Fill options

• Disc scrub brush (D75 head): Red, medium (standard maintenance scrubbing) - 4.905-018.0; Natural, soft (cleaning and polishing textured floors) - 4.905-020.0; White, very soft (sensitive floors) - 4.905-019.0; Black, hard (deep cleaning of hard-wearing floors) - 4.905-021.0
• Disc scrub brush (D90 head): Red, medium (standard maintenance scrubbing) - 4.905-003.0; Natural, soft (cleaning and polishing textured floors) - 4.905-004.0; White, very soft (sensitive floors) - 4.905-005.0; Black, hard (deep cleaning of hard-wearing floors) - 4.905-006.0
• Cylindrical scrub brush (R75 head): White, soft (sensitive floors, polishing) - 6.907-729.0; Red, medium (standard) - 4.035-578.0; Orange, high/low bristle (structured floors and joints) - 6.907-730.0; Green, hard (stubborn dirt, hard-wearing floors) - 6.907-731.0; Black, very hard (very sticky dirt, deep cleaning) - 6.907-732.0
• Cylindrical scrub brush (R90 head): White, soft (sensitive floors, polishing) - 6.907-733.0; Red, medium (standard) - 4.035-579.0; Orange, high/low bristle (structured floors and joints) - 6.907-734.0; Green, hard (stubborn dirt, hard-wearing floors) - 6.907-735.0; Black, very hard (very sticky dirt, deep cleaning) - 6.907-736.0
• Side brush: Moisture-proof universal bristles (standard side brush)

Matching products we build

Disc Scrub Brush for Kärcher BD Scrubber-Dryers

Polypropylene (poly) bristle

Built to your B 150 R's dimensions

45 in Double-Chevron Cylindrical Scrub Brush for Tennant S30

Nylon, poly, Proex or mixed wire on plastic core

Built to your B 150 R's dimensions

Short-Trim Pad Driver, 12–21 in (Tennant 1220222 type)

Polypropylene short-trim bristle

Built to your B 150 R's dimensions

Variants and what to check

Check the head label: D75 = two 385 mm discs, D90 = two 450 mm discs, R75 = two 700 mm rollers, R90 = two 800 mm rollers. Kärcher names the 800 mm rollers 'R85' on some accessory lines while the head is sold as R90 S - same 800 mm length. The side brush (6.951-073.0) needs the side brush/side scrub deck kit; its diameter is not stated on the datasheet.

What to send us for a quote

• Outer diameter of the brush or pad driver, measured across the bristle tips.
• The drive hub on top: clutch-plate type, number of lugs, or the hole pattern — a clear photo is usually enough.
• Trim length (how far the bristles stick out of the block) and the current fill: polypropylene, nylon or abrasive grit.
• For cylindrical decks: overall length, core diameter and the shape of the drive ends.
• Your machine model (Kärcher B 150 R) and, if you have it, the OEM part number from the old brush.

Frequently asked questions

Does the B 150 R use disc or cylindrical brushes?

Either: it is built with a twin-disc (D75/D90) or twin-roller (R75/R90) head.

What disc size does the B 150 R D90 head take?

Two 450 mm discs; the red medium standard is 4.905-003.0.

Is there a side brush for the B 150 R?

Yes, Kärcher lists a standard side brush 6.951-073.0 used with the side brush mounting kit.

Machines sharing these part numbers

Other Kärcher machines

Further reading