Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Please enter one or more characters
Scan Icon
Tips to find your model number
Water filters
Water filter finder tool
DIY help
Featured products
Top brands
View all parts by brand
Top products and services
Products by brand
Orders
Customer Service
Schedule a repair

Air Compressor AO Smith Motor Start Capacitor D21477

Part #D21477
MessageThis item is currently unavailable for purchase. We are sorry for any inconvenience.

If you choose to purchase a new product, please visit www.sears.com 

Confirm this part fits
This Part Also Fits
Craftsman
Part Information

This start capacitor (part number D21477) is for air compressors.

Start capacitor D21477 briefly increases the voltage to the motor to help the motor start. The capacitor is for AO Smith-made motors.

Unplug the air compressor before installing this part. Wear work gloves to protect your hands.

Popular Models Using D21477 Part
Model Number
Model Name
Model Number
16871
Model Name
Shop Parts
Model Number
919167341
Model Name
Shop Parts
Model Number
91916871
Model Name
Shop Parts
Model Number
919167221
Model Name
Shop Parts
Model Number
919167342
Model Name
Shop Parts
Model Number
919165140
Model Name
Shop Parts
Model Number
919167311
Model Name
Shop Parts
Model Number
919165580
Model Name
Shop Parts
Model Number
919167312
Model Name
Shop Parts
Model Number
919165570
Model Name
Shop Parts