MTD
Gas Walk-Behind Mower

Model #TB110 Official MTD lawn mower

Here are the diagrams and repair parts for MTD TB110 lawn mower, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Showing 10 of 45 parts

Lawn Mower Side Chute Deflector#10

Lawn mower Diagram

Lawn mower side chute deflector

Part #731-07486
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MSRP: $18.00
Lawn Mower Grass Bag Frame (replaces 647-04271, 747-05226)#3

Lawn mower Diagram

Frame-grasbg

Part #747-05226-0637
Replaced by #647-04271-0637
?
Manufacturer substitution
This part replaces 747-05226-0637. Substitute parts can look different from the original.
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MSRP: $40.00
Lawn Mower Mulching Plug Assembly (replaces 987-02516)#21

Lawn mower Diagram

Plug assembly

Part #987-02516
Replaced by #987-02516A
?
Manufacturer substitution
This part replaces 987-02516. Substitute parts can look different from the original.
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Lawn Mower Blade Support (replaces 936-0524A)#31

Lawn mower Diagram

Lawn mower blade support (replaces 936-0524a)

Part #736-0524B
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Lawn Mower Zone Control Cable (replaces 946-04661)#34

Lawn mower Diagram

Lawn mower control cable

Part #946-04661
Replaced by #946-04661A
?
Manufacturer substitution
This part replaces 946-04661. Substitute parts can look different from the original.
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MSRP: $13.00
Lawn Mower Handle, Upper (replaces 749-04680C-0637, 749-04680E, 749-04680E-0637, 749-05084A-0637, 749-05084B)#2

Lawn mower Diagram

Lawn mower handle

Part #749-04680-0637
Replaced by #749-05084B-0637
?
Manufacturer substitution
This part replaces 749-04680-0637. Substitute parts can look different from the original.
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Lawn Mower Axle Assembly, Front (replaces 611-04143B, 911-04143)#41

Lawn mower Diagram

Lawn mower axle assembly

Part #911-04143A
Replaced by #911-04143B
?
Manufacturer substitution
This part replaces 911-04143A. Substitute parts can look different from the original.
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Lawn & Garden Equipment Nut#32

Lawn mower Diagram

Lawn & garden equipment nut

Part #712-04064
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MSRP: $5.00
Lawn Mower Deflector Shield#10A

Lawn mower Diagram

Lawn mower deflector shield

Part #731-07131
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Lawn Mower Rear Skirt#36

Lawn mower Diagram

Lawn mower rear skirt

Part #731-07203
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Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cracked.

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged.

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to replace this tiny but essential part.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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