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MTD
Gas Walk-Behind Mower

Model # 12A-98K3095 Official MTD lawn mower

Here are the diagrams and repair parts for Official MTD 12A-98K3095 lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 16 parts  |
Yard Machines Lawn & Garden Equipment Cupped Washer 736-0270
#13

Wheels/drive diagram

Yard machines lawn & garden equipment cupped washer

Part #736-0270

This item is not returnable
$5.10 | 
16% OFF Phone Price : $6.10
In Stock
Lawn Mower Handle, Upper 749-0439E-0637
#8

Handle/chute/deck diagram

Lawn mower handle, upper

Part #749-0439E-0637

$55.37 | 
10% OFF Phone Price : $61.37
In Stock
Torsion Spring 732-0832
#42

Wheels/drive diagram

Torsion spring

Part #732-0832

This item is not returnable
$25.76
In Stock
Lawn Mower Grass Bag Cover 631-0071
#39

Handle/chute/deck diagram

Lawn mower grass bag cover

Part #631-0071

$112.69 | 
10% OFF Phone Price : $124.69
In Stock
Pivot Arm 782-0566B-0637
#24

Wheels/drive diagram

Pivot arm

Part #782-0566B-0637

$60.24
In Stock
Lawn Mower Screw 710-1348
#48

Wheels/drive diagram

Lawn mower screw

Part #710-1348

$11.74
In Stock
Mtd Lawn Mower Grass Bag Assembly 964-0076A
#35

Handle/chute/deck diagram

Mtd lawn mower grass bag assembly

Part #964-0076A

$99.80 | 
11% OFF Phone Price : $111.80
In Stock
Lawn Mower Blade Adapter 948-04015A
#27

Handle/chute/deck diagram

Lawn mower blade adapter

Part #948-04015A

Get free shipping with Automatic Reorder

$57.40 | 
9% OFF Phone Price : $63.40
In Stock
Brkt Spring0 782-0568-0637
#37

Wheels/drive diagram

Brkt spring0

Part #782-0568-0637

The manufacturer no longer makes this part, and there's no substitute part

Lawn Mower Bracket Assembly 687-02495
#45

Wheels/drive diagram

Lawn mower bracket assembly

Part #687-02495

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas walk-behind mowers

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

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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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.

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How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

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.…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your 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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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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Types of walk-behind mower blades video

Types of walk-behind mower blades video

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

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