Clarke EX40 18LX Carpet Extractor Brush Assembly, 18", Standard, Blue Hard or 240 Grit
(855) 601-5678 · support@oneupcleaning.com
The floating brush is what lets the Clarke EX40 18LX scrub carpet fibers between the spray and the vacuum shoe. When the bristles wear short, the brush stops reaching into the pile, and the carpet comes up less clean. These are the three complete 18-inch brush assemblies Clarke lists for the 18LX.
Running the smaller EX40 16ST? It takes 16-inch brushes, which are on the EX40 16ST brush page.
Standard nylon (56265099). The brush the machine runs for everyday carpet extraction.
Blue hard (56265177). A stiffer bristle. Clarke's manual notes that hard floor work can call for a different brush, and retailers sell this one as the hard floor brush.
240 grit (56265178). Abrasive bristles for scrubbing hard floors. Keep it off carpet.
Complete assembly. The full brush Clarke lists on the EX40 options page, ready to snap in.
Sized for the 18LX. The 18-inch assembly fits the EX40 18LX base. The 16ST takes its own 16-inch brushes.
No tools. The brush slides onto the drive lug and snaps into the retainer clip.
Turn the power switch off and unplug the machine. Empty both tanks, open the recovery tank lid and lift the recovery tank off. Set the handle upright and tip the machine onto its back. Turn the brush until the fins on the drive lug sit parallel to the floor, grab the brush at the retainer clip end and pull it straight out. Fit the new brush at the drive lug end first, then push the other end in until it snaps into the retainer clip. Clarke's schedule calls for checking and cleaning the brush daily. Brushes are wear items and aren't covered by Nilfisk's machine warranty except for manufacturing defects.
The brush is turned by a belt from the brush motor. If the motor runs but the brush won't turn, check the EX40 drive belt.
| Brand | Clarke (Nilfisk) |
| Part Numbers | Standard nylon 56265099 Blue hard 56265177 240 grit 56265178 |
| Size | 18 in |
| Type | Cylindrical brush assembly |
| Fits | Clarke EX40 18LX (56265505) |
| Brush Motor | 1/3 hp, belt drive |
| Mounting | Drive lug and retainer clip, no tools |
Not sure which part you need? Send us your machine model or serial number, call (855) 601-5678 or email support@oneupcleaning.com, and we'll confirm the fit before you order.
No. The 18LX takes these 18-inch brushes and the 16ST takes 16-inch brushes. They don't swap between models.
The standard nylon assembly, 56265099.
No. It's an abrasive brush for hard floors. Use the standard nylon brush on carpet.
No. Tip the machine back, pull the brush out at the retainer clip end, and snap the new one in, drive lug end first.
Only for manufacturing defects. Nilfisk treats brushes as wear items.