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Snapper
Rear-Engine Riding Mower

Model # 421620BVE Official Snapper rear-engine riding lawn mower

Here are the diagrams and repair parts for Official Snapper 421620BVE rear-engine riding lawn mower, 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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Owner’s manual

Model diagram and schematic

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Showing 10 of 387 parts  |
Hln, 1/4c Bz 7076978
#60

Cutting deck, deflectors diagram

Hln, 1/4c bz

Part #7076978

Replaced by #703232

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Manufacturer substitution
This part replaces 7076978. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$6.24 | 
14% OFF Phone Price : $7.24
In Stock
Gas Cap / Ga 7019377
#3

Fuel tank/operators seat diagram

Gas cap / ga

Part #7019377

Replaced by #7019377YP

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Manufacturer substitution
This part replaces 7019377. Substitute parts can look different from the original.
$50.29 | 
11% OFF Phone Price : $56.29
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
Nut, Hex Lock, 5/16c Esna Yz 7091298
#47

Main case diagram

Nut, hex lock, 5/16c esna yz

Part #7091298

Replaced by #703902

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Manufacturer substitution
This part replaces 7091298. Substitute parts can look different from the original.
This item is not returnable
$5.56 | 
15% OFF Phone Price : $6.56
In Stock
Adjuster Chain 7028728
#49

Rails/lift arms/cam lift diagram

Adjuster chain

Part #7028728

Replaced by #703827

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Manufacturer substitution
This part replaces 7028728. Substitute parts can look different from the original.
This item is not returnable
$18.29 | 
10% OFF Phone Price : $20.29
In Stock
Hfln 3/8 7091619
Hfln 3/8

Part #7091619

Replaced by #703333

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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
Slw, .32x.58 7091315
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
Chain Chain 7010941
Chain chain

Part #7010941

Replaced by #7010941YP

?
Manufacturer substitution
This part replaces 7010941. Substitute parts can look different from the original.
$26.34
In Stock
Hose 7024247
#15

Fuel tank/operators seat diagram

Hose

Part #7024247

Replaced by #841589

?
Manufacturer substitution
This part replaces 7024247. Substitute parts can look different from the original.
$57.69 | 
9% OFF Phone Price : $63.69
In Stock
Hcln 3/8 7091585
Hcln 3/8

Part #7091585

Replaced by #703347

?
Manufacturer substitution
This part replaces 7091585. Substitute parts can look different from the original.
This item is not returnable
$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.

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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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Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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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 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 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 is my riding mower leaking oil or gas?

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

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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 does my riding mower creep in neutral?

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

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

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How to replace the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

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Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

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 60 minutes or less
How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

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Repair difficulty
Time required
 60 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

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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