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MTD 3AA snow thrower Parts
Here are the diagrams and repair parts for MTD 3AA snow thrower, as well as links to manuals and error code tables, if available.
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Browse Parts for 3AA Snowblowers
Handle/drive housing diagram
Snowblower Handle, Lower
Part #749-04147Replaced by #749-04147B
Manufacturer substitutionThis part replaces 749-04147. Substitute parts can look different from the original.In Stock$91.866% OFF Phone Price : $97.86
Qty
Auger and housing/chute diagram
Left Auger
Part #684-04113Replaced by #684-04113A-0637
Manufacturer substitutionThis part replaces 684-04113. Substitute parts can look different from the original.In Stock$123.909% OFF Phone Price : $135.90QtyAuger and housing/chute diagram
Snowblower Clean-out Tool Retainer Clip
Part #731-2635Replaced by #731-11421
Manufacturer substitutionThis part replaces 731-2635. Substitute parts can look different from the original.This item is not returnableIn Stock$20.4323% OFF Phone Price : $26.43QtyHandle/drive housing diagram
Lawn & Garden Equipment Hex Screw
Part #710-0696Replaced by #710-0696
Manufacturer substitutionThis part replaces 710-0696. Substitute parts can look different from the original.This item is not returnableIn Stock$2.16QtyHandle/drive housing diagram
Drive Cable
Part #746-04256Replaced by #946-04256
Manufacturer substitutionThis part replaces 746-04256. Substitute parts can look different from the original.In Stock$53.8729% OFF Was : $75.60QtyLawn & Garden Equipment Cable Tie
Part #725-0157Replaced by #726-0178
Manufacturer substitutionThis part replaces 725-0157. Substitute parts can look different from the original.This item is not returnableIn Stock$25.35QtyAuger and housing/chute diagram
Hex Jam Nut
Part #712-0266Replaced by #712-0266A
Manufacturer substitutionThis part replaces 712-0266. Substitute parts can look different from the original.This item is not returnableIn Stock$7.20QtyKnob Wing Nut
Part #720-0284Replaced by #720-04072A
Manufacturer substitutionThis part replaces 720-0284. Substitute parts can look different from the original.In Stock$11.2315% OFF Phone Price : $13.23QtyAuger and housing/chute diagram
Right Auger
Part #684-04114Replaced by #684-04114A-0637
Manufacturer substitutionThis part replaces 684-04114. Substitute parts can look different from the original.In Stock$104.3810% OFF Phone Price : $116.38QtyAuger and housing/chute diagram
Flat Idler
Part #756-04035
The manufacturer no longer makes this part, and there's no substitute part
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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