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MTD
Gas Walk-Behind Mower

Model # 125-570A Official MTD lawn mower

Here are the diagrams and repair parts for Official MTD 125-570A lawn mower, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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

Model diagram and schematic

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Showing 10 of 139 parts  |
Bearing 741-0919
#43

Deck and pulley system diagram

Bearing

Part #741-0919

Replaced by #941-0919B

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Manufacturer substitution
This part replaces 741-0919. Substitute parts can look different from the original.
BEST SELLER
$19.64 | 
9% OFF Phone Price : $21.64
In Stock
Cap Screw 710-0258
#39

Deck and pulley system diagram

Cap screw

Part #710-0258

Replaced by #710-0751

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Manufacturer substitution
This part replaces 710-0258. Substitute parts can look different from the original.
This item is not returnable
$5.12 | 
16% OFF Phone Price : $6.12
In Stock
Housing 08253
#24

Deck and pulley system diagram

Housing

Part #08253

Replaced by #08253B

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Manufacturer substitution
This part replaces 08253. Substitute parts can look different from the original.
This item is not returnable
$4.11 | 
20% OFF Phone Price : $5.11
In Stock
Hex Screw 710-0459
#32

Deck and pulley system diagram

Hex screw

Part #710-0459

Replaced by #710-0459A

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Manufacturer substitution
This part replaces 710-0459. Substitute parts can look different from the original.
This item is not returnable
$10.29
In Stock
Spring 732-0193
#12

Engine/throttle control diagram

Spring

Part #732-0193

Replaced by #732-0193

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Manufacturer substitution
This part replaces 732-0193. Substitute parts can look different from the original.
This item is not returnable
$7.28 | 
12% OFF Phone Price : $8.28
In Stock
Grip 01166
#2

Engine/throttle control diagram

Grip

Part #01166

Replaced by #720-0204

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Manufacturer substitution
This part replaces 01166. Substitute parts can look different from the original.
This item is not returnable
$23.71
In Stock
Hex Screw 710-0567
#25

Engine/throttle control diagram

Hex screw

Part #710-0567

Replaced by #910-0195

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Manufacturer substitution
This part replaces 710-0567. Substitute parts can look different from the original.
This item is not returnable
$6.23
In Stock
Spring 732-0184
#62

Mower deck diagram

Spring

Part #732-0184

Replaced by #732-0184

?
Manufacturer substitution
This part replaces 732-0184. Substitute parts can look different from the original.
$28.76
In Stock
Stop Nut 712-0429
Stop nut

Part #712-0429

Replaced by #712-0429

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Manufacturer substitution
This part replaces 712-0429. Substitute parts can look different from the original.
This item is not returnable
$7.06
In Stock
Palnut 726-0106
#1

Deck and pulley system diagram

Palnut

Part #726-0106

Replaced by #726-0106

?
Manufacturer substitution
This part replaces 726-0106. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock

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 run rough?

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

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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 vibrate a lot?

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

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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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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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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 cr…

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 15 minutes or less
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Repair difficulty
Time required
 45 minutes or less

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