Harman 3.5" Motor Sprocket with Hub for XXV, Accentra & Advance, 1-10-08550W

SKU 1-10-08550W
MPN 1-10-08550W
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Chain-drive feed systems were used on the Advance, Accentra-Cast, and the XXV prior to the UL Feeder bodies which allowed for a direct-drive auger motor. This sprocket is mounted on the auger motor which is pictured on the left in the picture below.

The early versions of this feed system used a smaller primary gear (motor sprocket) and a larger secondary gear (auger) which also used a shorter chain. As of 2013, that system was updated to accommodate a 1:1 gear ratio using two 3 1/2" sprockets. If you have the old version, you need to update your stove as all of the older parts are obsolete.


Replacement For Part Number :
  • 1-10-08550W

Compatible Models


  • Accentra Cast Free Standing
  • Advance
  • XXV (Pre: 12871)


This part mounts to the auger feed motor. Early versions of this sprocket use to be smaller in diameter (reduction gear). If you are replacing a hub sprocket that is smaller than 3 1/2", you need to install the updated 1:1 sprocket kit. Small hub sprocket setups will not accommodate the newer 3 1/2" sprocket.


Unfortunately, sometimes products do not work like they are supposed to. We offer a 90 day warranty on manufacturer defects. Some manufacturers make this a very simple and easy process unfortunately others do not. Items must be used in accordance with the manufacturers guidelines to qualify for warranty replacement. Please be advised that warranty claims for these parts may take up to 4 weeks for processing, and customers must cover shipping.

Shipping Info

This Item Qualifies For Free Shipping With Orders Over $199!

When Will My Order Ship

All orders are typically processed within 24 hours of receiving payment and are shipped from us same day if placed before our shipping cutoff time (Monday - Friday: 1PM, Saturday: 10AM, Sunday: No Shipping), orders placed after our cutoff time are shipped the next morning.

How Does Free Shipping Work?

Most orders over $199 qualify for free shipping! Orders which ship for free are shipped with either USPS or UPS based on our discretion. If you are using a PO box, free shipping orders will always go USPS.

Is Expedited Shipping Available?

We offer both overnight and two day air shipping services for all orders placed within the Continental United States. For information on shipping cut-off times, go to our shipping page.

Do You Ship To Canada?

We ship to Canada! We estimate USPS to take 4-10 days once receiving your package from us. We do not offer expedited shipping of any kind to Canada. Please allow an extra 2-5 days for all shipments to Canada. Free shipping is not available to Canada.

Do You Ship To Alaska Or Hawii?

We ship to both Alaska and Hawaii! We do not offer next day or two day shipping to Alaska or Hawaii. Free shipping is not available to Alaska or Hawaii.

Do You Ship Outside The US Or Canada?

Unfortunately, at this time we do not offer international shipping other than to Canada.

If you wish to calculate shipping for an item which does not qualify for free shipping, or if you would like the cost to expedite your order, please do the following. Add the item you want to order to your cart and click here to be taken to the cart page where you can enter your country, state / province, and zip code for an estimate.

Shipping Time Estimations

For information on shipping time estimations, see either the Shipping Information & Transit Times on the cart page, or go to our shipping page.

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Customer Reviews

Based on 1 review
Parts arrived promptly and fit

Parts arrived promptly and fit perfectly. Stove is working well again. Thanks.


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