Knott Lock Nut for Sealed-for-Life Bearing (407963)

Knott Lock Nut for Sealed-for-Life Bearing

Genuine Knott replacement lock nut for sealed-for-life wheel bearing assemblies on Knott-Avonride caravan axles. The lock nut secures the wheel bearing in position on the stub axle — a loose or damaged lock nut can result in bearing movement and ultimately wheel loss, making this a safety-critical component.

Key Features

• Genuine Knott replacement part (407963)
• Designed for Knott sealed-for-life bearing assemblies
• Secures wheel bearing firmly on stub axle
• Safety-critical component — use only genuine Knott parts
• Replace whenever bearing or hub components are serviced
• Do not reuse old lock nuts after removal

Compatibility

Specifically for Knott-Avonride axle systems using sealed-for-life bearings. Not compatible with AL-KO or other axle brands. Check your axle make before ordering — Knott axles are common on Bailey, Swift, and several other UK caravan brands.

Installation

Must be fitted by a qualified caravan workshop. Always fit a new lock nut when replacing bearings — never reuse a removed lock nut. Torque to Knott specification and secure with a new split pin or locking tab as applicable.

Part number: 407963  |  Barcode: N/A