Product Description

The Dyson DC40 swivel lock arm spring (part number 919901-37) is an authentic OEM replacement component for Dyson DC40 upright vacuums. This spring is a critical part of the swivel arm assembly, enabling smooth articulation and secure locking of the wand handle during use and storage.

Manufactured to Dyson's original specifications, this spring maintains proper tension and alignment in the swivel lock mechanism. It is essential for restoring full functionality to DC40 models where the swivel arm has lost tension or the locking mechanism has become unreliable.

Compatibility

• Dyson DC40: Animal, Multi-floor, and standard models

Swiss Boy Vacuum is an authorized Dyson dealer serving the Wasatch Front since 1963. We stock genuine OEM Dyson parts and provide expert repair and replacement guidance. Located in Bountiful, Utah. Call 801-298-3656 for compatibility confirmation or to order.

Why Choose This Product?

• Genuine OEM Dyson part—guaranteed fit and performance on DC40 models
• Restores proper swivel arm tension and locking mechanism function
• Direct replacement for worn or damaged original springs
• Easy installation on DC40 swivel assembly
• Part of Swiss Boy's extensive Dyson parts inventory

Specifications

• Brand: Dyson
• Part Number: 919901-37
• Compatible Model: DC40
• Component Type: Swivel lock arm spring

Use Case

This spring is for DC40 owners experiencing loose or unresponsive swivel arm movement, or difficulty locking the wand into position. If your DC40's swivel mechanism feels slack or won't hold its angle, this OEM spring replacement will restore the proper tension and locking action, ensuring safe and convenient operation.