MTD
Gas Walk-Behind Mower

Model #37163A MTD lawn mower

Here are the repair parts and diagrams for your MTD 37163A lawn mower. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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Showing 10 of 55 parts

Plug

#67

3.5hp 20" rotary mower Diagram

Plug

Part #731-0564
This item is not returnable
$2.60

In Stock

Lawn & Garden Equipment Screw

#45

3.5hp 20" rotary mower Diagram

Lawn & garden equipment screw

Part #710-0796
This item is not returnable
$2.95
16% OFFMSRP:$3.50

In Stock

Screw

#27

3.5hp 20" rotary mower page 2 Diagram

Screw

Part #710-0331
This item is not returnable
$4.38

In Stock

Lawn & Garden Equipment Hex Bolt

#26

3.5hp 20" rotary mower Diagram

Lawn & garden equipment hex bolt

Part #710-0888
This item is not returnable
$2.53

In Stock

Lawn & Garden Equipment Hex Washer Head Screw

#66

3.5hp 20" rotary mower Diagram

Lawn & garden equipment hex washer head screw

Part #710-0603
This item is not returnable
$2.73
17% OFFMSRP:$3.30

In Stock

Lawn & Garden Equipment Pal Nut

#12

3.5hp 20" rotary mower Diagram

Lawn & garden equipment pal nut

Part #726-0106
?
Manufacturer substitution
This part replaces 726-0106. Substitute parts can look different from the original.
This part replaces 726-0106
This item is not returnable
$2.32

In Stock

Throttle Lever

#50

3.5hp 20" rotary mower Diagram

Throttle lever

Part #931-0972
?
Manufacturer substitution
This part replaces 731-0528. Substitute parts can look different from the original.
This part replaces 731-0528
This item is not returnable
$5.81

In Stock

Lawn & Garden Equipment Hex Nut

#14

3.5hp 20" rotary mower Diagram

Lawn & garden equipment hex nut

Part #912-0287
?
Manufacturer substitution
This part replaces 712-0287. Substitute parts can look different from the original.
This part replaces 712-0287
This item is not returnable
$2.71
13% OFFMSRP:$3.10

In Stock

Lawn & Garden Equipment Screw

#10

3.5hp 20" rotary mower Diagram

Lawn & garden equipment screw

Part #910-0289
?
Manufacturer substitution
This part replaces 710-0289. Substitute parts can look different from the original.
This part replaces 710-0289
This item is not returnable
$2.31
8% OFFMSRP:$2.50

In Stock

Hex B-tapp S

#18

3.5hp 20" rotary mower Diagram

Hex b-tapp s

Part #710-0651
?
Manufacturer substitution
This part replaces 710-0436. Substitute parts can look different from the original.
This part replaces 710-0436
This item is not returnable
$2.31

In Stock

Symptoms for gas walk-behind mowers

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

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
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: 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.

March 1, 2016
By Lyle Weischwill
How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive cable if it's broken or frozen up inside the sheath.

Repair difficulty
Time required
 60 minutes or less
April 1, 2013
By Lyle Weischwill
How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.

Repair difficulty
Time required
 15 minutes or less
April 1, 2013
By Lyle Weischwill
How to replace a lawn mower safety switch

The safety switch stops the engine when you release the lever on the handle. This repair guide explains how to replace it if it's not working correctly.

Repair difficulty
Time required
 30 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.

October 1, 2019

Types of walk-behind mower blades video

By Sears PartsDirect staff

Learn about the different kinds of mower blades and how to maintain them.