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Snapper
Gas Walk-Behind Mower

Model # NR21501 Official Snapper lawn mower - series 0 & 1

Here are the diagrams and repair parts for Official Snapper NR21501 lawn mower - series 0 & 1, 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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Model diagram and schematic

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Showing 10 of 386 parts  |
Rhsnb, 5/16c 7090316
#35

Drive system self-propelled diagram

Rhsnb, 5/16c

Part #7090316

Replaced by #703225

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Manufacturer substitution
This part replaces 7090316. Substitute parts can look different from the original.
This item is not returnable
$6.29 | 
14% OFF Phone Price : $7.29
In Stock
Fln 5/16-18 7091601
Fln 5/16-18

Part #7091601

Replaced by #703409

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Manufacturer substitution
This part replaces 7091601. Substitute parts can look different from the original.
$9.27 | 
10% OFF Phone Price : $10.27
In Stock
Key 7073406
#5

Electric start diagram

Key

Part #7073406

Replaced by #1717163SM

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Manufacturer substitution
This part replaces 7073406. Substitute parts can look different from the original.
This item is not returnable
$13.31 | 
13% OFF Phone Price : $15.31
In Stock
Hflb, 5/16c 7090595
Hflb, 5/16c

Part #7090595

Replaced by #703354

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Manufacturer substitution
This part replaces 7090595. Substitute parts can look different from the original.
This item is not returnable
$8.89 | 
10% OFF Phone Price : $9.89
In Stock
Blade 7026691
#14B

Cutting deck/blade/interlock diagram

Blade

Part #7026691

Replaced by #7026691BZYP

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Manufacturer substitution
This part replaces 7026691. Substitute parts can look different from the original.
This item is not returnable

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$27.69 | 
18% OFF Phone Price : $33.69
In Stock
Slw, .318x.5 7090187
Slw, .318x.5

Part #7090187

Replaced by #703116

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Manufacturer substitution
This part replaces 7090187. Substitute parts can look different from the original.
This item is not returnable
$5.79 | 
15% OFF Phone Price : $6.79
In Stock
Ball Joint 7015753
#56

Drive system self-propelled diagram

Ball joint

Part #7015753

Replaced by #7015753YP

?
Manufacturer substitution
This part replaces 7015753. Substitute parts can look different from the original.
$19.66
In Stock
Input Gear A 7050767
#12

Transmission (differential) diagram

Input gear a

Part #7050767

Replaced by #7050767YP

?
Manufacturer substitution
This part replaces 7050767. Substitute parts can look different from the original.
$52.09
In Stock
Rhssnb, 1/4c 7091530
#18

Accessory-thatcherizer diagram

Rhssnb, 1/4c

Part #7091530

Replaced by #703101

?
Manufacturer substitution
This part replaces 7091530. Substitute parts can look different from the original.
This item is not returnable
$6.89 | 
13% OFF Phone Price : $7.89
In Stock
Idler Stud 7012111
#12

Drive system self-propelled diagram

Idler stud

Part #7012111

Replaced by #703836

?
Manufacturer substitution
This part replaces 7012111. Substitute parts can look different from the original.
$14.94
In Stock

Symptoms for gas walk-behind mowers

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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 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 cut unevenly?

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

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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 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 vibrate a lot?

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

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Repair guides for gas walk-behind mowers

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 60 minutes or less
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 15 minutes or less
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 15 minutes or less

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