Miele S7 / U1 Pinion Gear Replacement Part #7252340 – Brush Motor Gear for Dynamic U1 Uprights

Genuine Miele Pinion Gear for S7 / U1 Upright Vacuums

Restore proper brush roll performance with this genuine Miele Pinion Gear (Part #7252340), designed for Miele S7 and Dynamic U1 upright vacuum cleaners. This gear mounts directly onto the end of the brush roll motor and plays a critical role in transferring power to the brush roller.

Why Replace the Pinion Gear?

Over time, the teeth on the pinion gear can wear down and develop sharp edges. When this happens, the gear can begin to damage the brush drive belt—often causing it to fray, slip, or even snap in half. Replacing a worn pinion gear helps prevent repeated belt failures and ensures smooth, reliable operation.

Key Features

• Genuine Miele replacement part – Part #7252340
• Designed for S7 and Dynamic U1 upright vacuum models
• Restores proper brush roll drive performance
• Helps prevent premature belt wear and breakage
• Durable construction for long-lasting performance

Compatibility

Compatible with Miele S7 series and Dynamic U1 upright vacuum cleaners.

Installation Notes

Installation involves accessing the brush motor assembly. Professional installation is recommended to ensure proper alignment and to avoid damage to the vacuum or related components.

When to Replace

• Brush belt repeatedly breaking or slipping
• Visible wear or sharp edges on gear teeth
• Reduced or inconsistent brush roll performance

Replacing the pinion gear at the first signs of wear can save you time and money by preventing further damage to belts and drive components.