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Snapper
Rear-Engine Riding Mower

Model # 7800021 Official Snapper mid-mount z rider lawn mower

Here are the diagrams and repair parts for Official Snapper 7800021 mid-mount z rider lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 442 parts  |
Hln, Nylon, 7091603
Hln, nylon,

Part #7091603

Replaced by #703232

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Manufacturer substitution
This part replaces 7091603. Substitute parts can look different from the original.
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This item is not returnable
$6.24 | 
14% OFF Phone Price : $7.24
In Stock
Clamp 7012222
#29

Fuel tank diagram

Clamp

Part #7012222

Replaced by #791850

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Manufacturer substitution
This part replaces 7012222. Substitute parts can look different from the original.
This item is not returnable
$4.74 | 
17% OFF Phone Price : $5.74
In Stock
Key 7073406
#6

Electrical components 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
Slw, .445x.7 7091301
#13

Engine sub-assembly diagram

Slw, .445x.7

Part #7091301

Replaced by #704007

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Manufacturer substitution
This part replaces 7091301. Substitute parts can look different from the original.
$8.03
In Stock
Slw, .32x.58 7091315
#25

Engine sub-assembly diagram

Slw, .32x.58

Part #7091315

Replaced by #703116

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Manufacturer substitution
This part replaces 7091315. Substitute parts can look different from the original.
This item is not returnable
$5.79 | 
15% OFF Phone Price : $6.79
In Stock
Hn, 5/16c Gr 7091511
#10

Hydro idler diagram

Hn, 5/16c gr

Part #7091511

Replaced by #7091511SM

?
Manufacturer substitution
This part replaces 7091511. Substitute parts can look different from the original.
This item is not returnable
$6.23
In Stock
Hfln 3/8 7091619
Hfln 3/8

Part #7091619

Replaced by #703333

?
Manufacturer substitution
This part replaces 7091619. Substitute parts can look different from the original.
This item is not returnable
$8.09 | 
11% OFF Phone Price : $9.09
In Stock
Belleville Washer 7016440
#13

Deck spindle diagram

Belleville washer

Part #7016440

Replaced by #7016440SM

?
Manufacturer substitution
This part replaces 7016440. Substitute parts can look different from the original.
This item is not returnable
$13.49 | 
13% OFF Phone Price : $15.49
In Stock
Slw, .381x.6 7090118
#20

Hydro idler diagram

Slw, .381x.6

Part #7090118

Replaced by #703454

?
Manufacturer substitution
This part replaces 7090118. Substitute parts can look different from the original.
This item is not returnable
$6.03
In Stock
Hex Head Cap Screw 7091305
Hex head cap screw

Part #7091305

Replaced by #703589

?
Manufacturer substitution
This part replaces 7091305. Substitute parts can look different from the original.
$7.69 | 
12% OFF Phone Price : $8.69
In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

View all

Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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Most common repair guides to help fix your riding mowers & tractors

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

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How to replace a mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

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Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower ignition coil

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

Read more
Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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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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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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