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Craftsman
Riding Mowers & Tractors

Model # 52821800 Official Craftsman 36" riding rotary mower

Here are the diagrams and repair parts for Official Craftsman 52821800 36" riding rotary 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 376 parts  |
Holder 790005
#81

42086 (peerless model 639) transaxle diagram

Holder

Part #790005

Replaced by #790025

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Manufacturer substitution
This part replaces 790005. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$18.30 | 
10% OFF Phone Price : $20.30
In Stock
Dowel Pin 786026
#67

42086 (peerless model 639) transaxle diagram

Dowel pin

Part #786026

Replaced by #786026B

?
Manufacturer substitution
This part replaces 786026. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$4.60 | 
18% OFF Phone Price : $5.60
In Stock
Screw 792085
#85A

42086 (peerless model 639) transaxle diagram

Screw

Part #792085

Replaced by #792085A

?
Manufacturer substitution
This part replaces 792085. Substitute parts can look different from the original.
This item is not returnable
$4.60 | 
18% OFF Phone Price : $5.60
In Stock
Spacer 786066
#89

42086 (peerless model 639) transaxle diagram

Spacer

Part #786066

Replaced by #786066

?
Manufacturer substitution
This part replaces 786066. Substitute parts can look different from the original.
This item is not returnable
$4.60
In Stock
Woodruff Key 431787
#43

Drive assembly diagram

Woodruff key

Part #431787

Replaced by #703891

?
Manufacturer substitution
This part replaces 431787. Substitute parts can look different from the original.
This item is not returnable
$8.11 | 
11% OFF Phone Price : $9.11
In Stock
Quad Ring 792001
#38

42086 (peerless model 639) transaxle diagram

Quad ring

Part #792001

Replaced by #792001

?
Manufacturer substitution
This part replaces 792001. Substitute parts can look different from the original.
This item is not returnable
$4.37
In Stock
Bearing 780071
#63

42086 (peerless model 639) transaxle diagram

Bearing

Part #780071

Replaced by #780071

?
Manufacturer substitution
This part replaces 780071. Substitute parts can look different from the original.
$11.34
In Stock
Screw 792007
#72

42086 (peerless model 639) transaxle diagram

Screw

Part #792007

Replaced by #792007

?
Manufacturer substitution
This part replaces 792007. Substitute parts can look different from the original.
This item is not returnable
$4.37
Back Order
Oil Seal 788009
#69

42086 (peerless model 639) transaxle diagram

Oil seal

Part #788009

Replaced by #788009

?
Manufacturer substitution
This part replaces 788009. Substitute parts can look different from the original.
$11.60
In Stock
Washer 8728
#88

Main frame diagram

Washer

Part #8728

Replaced by #783000MA

?
Manufacturer substitution
This part replaces 8728. Substitute parts can look different from the original.
This item is not returnable
$9.34
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

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
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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
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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

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

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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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