Craftsman
Front-Engine Lawn Tractor

Model #502813770 Official Craftsman 30" 7-hp riding lawn mower with recoil start

Here are the diagrams and repair parts for Craftsman 502813770 30" 7-hp riding lawn mower with recoil start, as well as links to manuals and error code tables, if available.

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Showing 10 of 250 parts

Lawn Tractor Tire Valve Stem (replaces 20267, 24167, 24297, 24373, 3930J, 400162, 407229, 493215, 532065139, 5320651-39, 532124718, 55-21V, 56-21V, 65333, 74289, 76-21V, 77-21V, 78-21V, 795R)#51D

Riding mower-lower half Diagram

Valve cap

Part #400162
Replaced by #65139
?
Manufacturer substitution
This part replaces 400162. Substitute parts can look different from the original.
BEST SELLER
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$9.44 | 
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Was: $10.49
Lawn Tractor Nut#28

Riding mower-top half Diagram

Flange nut

Part #15X79
Replaced by #703409
?
Manufacturer substitution
This part replaces 15X79. Substitute parts can look different from the original.
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Washer#30

Riding mower-lower half Diagram

Washer

Part #17X37Z

The manufacturer no longer makes this part, and there's no substitute part

Lawn Tractor Ground Drive Idler Pulley

See All Related Diagrams

Idler pulley

Part #20613
Replaced by #420613MA
?
Manufacturer substitution
This part replaces 20613. Substitute parts can look different from the original.
This item is not returnable
In Stock
$23.49 | 
18% OFF 
Phone Price: $28.49
Washer#63

Riding mower-lower half Diagram

Washer

Part #STD551031

The manufacturer no longer makes this part, and there's no substitute part

Lawn & Garden Equipment Nut#33

Riding mower-top half Diagram

Lock nut

Part #15X84
Replaced by #703893
?
Manufacturer substitution
This part replaces 15X84. Substitute parts can look different from the original.
This item is not returnable
In Stock
$11.29 | 
15% OFF 
Phone Price: $13.29
Lock Nut

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Lock nut

Part #STD541431

The manufacturer no longer makes this part, and there's no substitute part

Nut#12

Riding mower-lower half Diagram

Nut

Part #STD5414531

The manufacturer no longer makes this part, and there's no substitute part

Washer#67

Riding mower-top half Diagram

Washer

Part #17X47Z

The manufacturer no longer makes this part, and there's no substitute part

Lawn & Garden Equipment Push Nut#339

Blade housing Diagram

Push-on-cap

Part #28X23
Replaced by #703948
?
Manufacturer substitution
This part replaces 28X23. Substitute parts can look different from the original.
This item is not returnable
In Stock
$7.29 | 
12% OFF 
Phone Price: $8.29

Symptoms common to all riding mowers & tractors

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

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim
Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, dirty carburetor
Main causes: shift lever needs adjustment, neutral control needs adjustment
Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged mandrel pulleys
Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components
Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, broken fuel line
Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a tune up
Main causes: faulty battery, bad alternator
Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tune up

Repair guides common to all riding mowers & tractors

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

January 1, 2015
By Lyle Weischwill
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.

Repair difficulty
Time required
 60 minutes or less
January 1, 2015
By Lyle Weischwill
How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.

Repair difficulty
Time required
 30 minutes or less
January 1, 2015
By Lyle Weischwill
How to replace a riding lawn mower fuel filter

Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all 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.

August 6, 2020

How to remove a lawn mower blade using a removal tool

By Lyle Weischwill

Learn how a blade removal tool makes replacing the blade easier and safer

April 9, 2019

Riding mower parts and supplies to stock up on video

By Kim Hillegass

Keep these 6 things on hand to keep the mower season running smoothly.

March 1, 2016

Charging a battery in a riding lawn mower video

By Lyle Weischwill

Learn how to use a battery charger if your mower battery is dead.