Skip to product information
1 of 1

Kirby

Kirby Sentria Transmission Primary Sprocket

Kirby Sentria Transmission Primary Sprocket

Regular price $6.99 USD
Regular price Sale price $6.99 USD
Sale Sold out
Shipping calculated at checkout.

SKU:550505

Low stock: 9 left

Free Shipping On Eligible Orders $100+
Genuine Parts OEM Quality
Secure Checkout SSL Encrypted

Shipping Information

We offer free standard shipping on eligible orders of $100 or more within the 48 contiguous United States. Eligibility is calculated on the merchandise subtotal after discounts and before tax.

Most in-stock orders using standard shipping are processed within 1-5 business days, and most arrive 2-11 business days after they are placed. Backordered and special-order items may take longer. Expedited UPS Ground is available at checkout for an extra charge, including on orders that qualify for free standard shipping. See our Shipping Policy for details.

Returns & Exchanges

We offer 35-day returns on eligible items: request a Return Authorization (RA#) within 35 days of delivery, and your return must reach us within 21 days after the RA# is issued.

Items must be unused, in new condition, and in original packaging with all accessories. For non-defective returns you pay return shipping; original shipping charges are not refunded, and if your order shipped free our actual outbound shipping cost is deducted from the refund. There is no standard restocking fee. See our Return & Refund Policy for details and exclusions.

Warranty Information

All products sold by Vacuums and More come with the manufacturer's warranty. Warranty terms vary by brand and product.

With 35 years of industry experience, we stand behind every product we sell. Contact us for warranty support.

View full details

Kirby Sentria Transmission ...

$6.99

Product details

This genuine OEM transmission primary sprocket (part 550505) drives the self-propelled system on Kirby Sentria and Avalir uprights. The sprocket transfers power from the motor into the transmission, turning the geartrain that pushes and pulls the machine for you.

A sprocket with worn or chipped teeth slips against the drive, so the self-propel feature stutters, drags, or quits and the vacuum turns heavy and hard to push. A fresh sprocket restores clean tooth engagement and smooth, steady power drive.

  • Fits: Kirby AVALIR, AVALIR 2, AVALIR PLATINUM, SENTRIA, Sentria II
  • Part: transmission primary sprocket, 550505
  • Function: transfers motor power into the drive transmission
  • Benefit: restores smooth self-propelled operation

Align the new sprocket with the drive and secure it before closing the transmission. Confirm your Kirby model before ordering to be sure of the fit.