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MTD 644E gas snowthrower Parts
Here are the diagrams and repair parts for MTD 644E gas snowthrower, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for 644E Snowblowers
Wheel assembly diagram
Wheel Assembly
Part #734-1712
The manufacturer no longer makes this part, and there's no substitute part
Friction wheel/gears/frame cover diagram
Bracket Assembly
Part #684-0021
The manufacturer no longer makes this part, and there's no substitute part
Friction wheel/gears/frame cover diagram
Wheel Frame Housing
Part #784-5630A
The manufacturer no longer makes this part, and there's no substitute part
Belts/pulleys diagram
Half Pulley
Part #756-0987
The manufacturer no longer makes this part, and there's no substitute part
Gear assembly/housing diagram
Auger Housing Assembly
Part #684-0039C
The manufacturer no longer makes this part, and there's no substitute part
Friction wheel/gears/frame cover diagram
Guide Bracket
Part #784-5689A
The manufacturer no longer makes this part, and there's no substitute part
Wheel assembly diagram
Wheel Assembly
Part #734-1709
The manufacturer no longer makes this part, and there's no substitute part
Wheel assembly diagram
Tire Snow Housing
Part #734-1525
The manufacturer no longer makes this part, and there's no substitute part
Wheel assembly diagram
Snowblower Wheel Rim
Part #734-1713
The manufacturer no longer makes this part, and there's no substitute part
Belts/pulleys-614e diagram
Half Pulley
Part #756-0984
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.
If you're looking for the age of you Craftsman snowblower, our guide will help.…
Proper drive control cable tension is key to smooth snowblower operation, and you can learn how to test and adjust it yo…
Avoid costly snowblower repairs this season. Watch how to lubricate the drive hex shaft to prevent friction, improve tra…
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