Dyson DC25 Brush Core with Bearing NSS When a rear castor cracks

When a rear castor cracks

As carbon brushes wear short

and suction is not lost to leaks around the base

dependable fit between sections and tools

Installs directly over the existing power head

Dyson DC25 Brush Core with Bearing NSS When a rear castor cracksThis replacement brush core with bearing (part #10 3507 21) fits the Dyson DC25 upright and ships pre assembled with its bearing. The core holds the bristle rows and rotates against the carpet to lift embedded dirt. Worn bristles let the DC25 skate over dirt, and a dry or failing bearing produces noise and drag before it locks up entirely. Replacing the core and bearing together renews both parts in one step. The dense bristle pattern brings back