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Lawn-Boy 320 (28220-7900001 & UP) snow thrower Parts
Here are the diagrams and repair parts for Lawn-Boy 320 (28220-7900001 & UP) snow thrower, as well as links to manuals and error code tables, if available.
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Browse Parts for 320 (28220-7900001 & UP) Snowblowers
Handle assembly diagram
Screw
Part #32105-11Replaced by #108-7301
Manufacturer substitutionThis part replaces 32105-11. Substitute parts can look different from the original.In Stock$27.73
Qty
Starter motor 28222 (electric) diagram
Hex Cap Switch
Part #80-3740Replaced by #100-3442
Manufacturer substitutionThis part replaces 80-3740. Substitute parts can look different from the original.In Stock$48.15QtyUpper shroud assembly (continued) diagram
Deflector
Part #56-2680Replaced by #56-2680
Manufacturer substitutionThis part replaces 56-2680. Substitute parts can look different from the original.In Stock$64.05QtyRotor assembly diagram
Cap Screw
Part #321-8Replaced by #321-8
Manufacturer substitutionThis part replaces 321-8. Substitute parts can look different from the original.This item is not returnableIn Stock$2.16QtyUpper shroud assembly (continued) diagram
Detent Spring
Part #71-5590Replaced by #80-4600
Manufacturer substitutionThis part replaces 71-5590. Substitute parts can look different from the original.In Stock$37.05QtyRotor housing assembly diagram
Flange
Part #52-9110Replaced by #52-9110
Manufacturer substitutionThis part replaces 52-9110. Substitute parts can look different from the original.In Stock$94.19QtyUpper shroud assembly (continued) diagram
Guide
Part #23-7470Replaced by #23-7470
Manufacturer substitutionThis part replaces 23-7470. Substitute parts can look different from the original.In Stock$65.33QtyRotor housing assembly diagram
Spacer
Part #57-3830Replaced by #57-3830
Manufacturer substitutionThis part replaces 57-3830. Substitute parts can look different from the original.In Stock$34.61QtyUpper shroud assembly (continued) diagram
Chute Support
Part #55-8921Replaced by #55-8921-03
Manufacturer substitutionThis part replaces 55-8921. Substitute parts can look different from the original.In Stock$98.50QtyUpper shroud assembly (continued) diagram
Switch Key
Part #40-5940Replaced by #40-5940
Manufacturer substitutionThis part replaces 40-5940. Substitute parts can look different from the original.In Stock$50.28Qty
Most common symptoms to help you fix your snowblowers
Choose a symptom to see related snowblower repairs.
Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…
Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…
Main causes: dirty carburetor, stale fuel…
Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …
Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…
Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…
Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…
Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…
Repair guides for gas snowblowers
These step-by-step repair guides will help you safely fix what’s broken on your snowblower.
How to adjust snowblower skid shoes
To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…
Repair time and Difficulty
15 minutes or less
How to rebuild a snowblower carburetor
Rebuild the carburetor on your snowblower if the engine isn't getting fuel.…
Repair time and Difficulty
45 minutes or less
How to replace a snowblower 4-way chute control assembly
Replace the 4-way chute control assembly on your snowblower if it’s damaged.…
Repair time and Difficulty
30 minutes or less
Effective articles & videos to help repair your snowblowers
Use the advice and tips in these articles and videos to get the most out of your snowblower.
Find easy DIY tips to fix your snowblower when it won't start…
Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
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