The perimeter of the upper belt is about 14 1/4 inch(362mm), and the perimeter of the lower belt is about about 12 inch(305mm).Both of the upper and lower belts have the same width and thickness. The width is about 1/4 inch(6mm) and the thickness is about 5/32 inch (4mm). If possible, please measure the relevant sizes of your original upper and lower belts to compare sizes before you buy Please note that only one side of each of the belts has teeth, and the random color will be sent, which may be different from the posted photo. Compatible with/Replacement for Kenmore brand 158 Series sewing machine models: 158. 12110, 158.12111, 158.12112, 158.12120, 158.12121, 158.12310, 158.12311, 158.12312, 158.12313, 158.12410, 158.12411, 158.12412, 158.12472, 158.12510, 158.12511, 158.12512, 158.12520, 158.13410, 158.13411, 158.13412, 158.13413, 158.13414, 158.13513, 158.13580, 158.13581, 158.16800, 158.16801, 158.16900, 158.17800, 158.18800 Compatible with/Replacement for Kenmore brand 385 Series sewing machine models: 385.10111, 385.11541, 385.11551, 385.11581, 385.12320, 385.12321, 385.12331, 385.12332, 385.12490, 385.12491, 385.12492, 385.12493, 385.12541, 385.12641, 385.12741, 385.12841

1. Part number: 40164+33379

2. Part name: Motor Belt

3. Material: Polyurethane

4. Quantity: 2SET

5. Color: Random Color

6. Compatibility

This high quality Motor Belt replacement is exactly  Compatible with/Replacement for following Kenmore  brand sewing machine models,including (many not listed):

1)Compatible with/Replacement for Kenmore brand 158 Series sewing machine models:

158. 12110, 158.12111, 158.12112, 158.12120, 158.12121, 158.12310, 158.12311, 158.12312, 158.12313, 158.12410, 158.12411, 158.12412, 158.12472, 158.12510, 158.12511, 158.12512, 158.12520, 158.13410, 158.13411, 158.13412, 158.13413, 158.13414, 158.13513, 158.13580, 158.13581, 158.16800, 158.16801, 158.16900, 158.17800, 158.18800

2)Compatible with/Replacement for Kenmore brand 385 Series sewing machine models:

385.10111, 385.11541, 385.11551, 385.11581, 385.12320, 385.12321, 385.12331, 385.12332, 385.12490, 385.12491, 385.12492, 385.12493, 385.12541, 385.12641, 385.12741, 385.12841

7. Notice

• The perimeter of the upper belt is about 14 1/4 inch(362mm), and the perimeter of the lower belt is about 12 inch(305mm).Both of the upper and lower belts have the same width and thickness. The width is about 1/4 inch(6mm) and the thickness is about 5/32 inch (4mm). If possible, please measure the relevant sizes of your original upper and lower belts to compare sizes before you buy.
• Please note that only one side of each of the belts has teeth, and the random color will be sent, which may be different from the posted photo.
• Please pay attention to the size of the product !