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Model # 556 Official Troybilt lawn mower
Here are the diagrams and repair parts for Official Troybilt 556 lawn mower, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
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556 Walk-Behind Mowers
Blade-21" mu
Part #742-0741
Replaced by #942-0741A
?
Manufacturer substitution
This part replaces 742-0741. Substitute parts can look different from the original.
Get free shipping with Automatic Reorder
$27.71 |
18% OFF Phone Price : $33.71
In Stock
Lawn mower blade support (replaces 936-0524a)
Part #736-0524B
Replaced by #736-0524B-1
?
Manufacturer substitution
This part replaces 736-0524B. Substitute parts can look different from the original.
Get free shipping with Automatic Reorder
$6.78 |
13% OFF Phone Price : $7.78
Back Order
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)
Part #712-04065
This item is not returnable
$5.27 |
16% OFF Phone Price : $6.27
Back Order
#12
Pulleys/blade/handle diagram
Cable 37.37
Part #746-1113
Replaced by #946-1113A
?
Manufacturer substitution
This part replaces 746-1113. Substitute parts can look different from the original.
$22.18 |
21% OFF Phone Price : $28.18
In Stock
Lawn tractor screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599)
Part #710-0599
This item is not returnable
$4.91 |
17% OFF Phone Price : $5.91
In Stock
Knob
Part #720-04072
Replaced by #720-04072A
?
Manufacturer substitution
This part replaces 720-04072. Substitute parts can look different from the original.
$9.33 |
10% OFF Phone Price : $10.33
In Stock
#34A
Wheel assembly/mulch plug diagram
Hinge pin
Part #747-0710
Replaced by #747-0710A
?
Manufacturer substitution
This part replaces 747-0710. Substitute parts can look different from the original.
This item is not returnable
$4.76 |
17% OFF Phone Price : $5.76
Back Order
Wing nut
Part #712-0397
Replaced by #712-0397A
?
Manufacturer substitution
This part replaces 712-0397. Substitute parts can look different from the original.
This item is not returnable
$5.22 |
16% OFF Phone Price : $6.22
Back Order
Lawn & garden equipment carriage bolt (replaces 1186069, 583108, 706-101080, 706-10602-12, 791-182213)
Part #710-0703
This item is not returnable
$6.46 |
13% OFF Phone Price : $7.46
Back Order
Sears lawn tractor lock nut (replaces 912-0214)
Part #712-0214
$9.37
In Stock
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
Repair guides for gas walk-behind mowers
These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.
How to rebuild a lawn mower carburetor
The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…
Repair difficulty
Time required
60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine
Replace the recoil starter if it doesn't move when you pull the starter rope.…
Repair difficulty
Time required
15 minutes or less
How to replace a lawn mower wheel
Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…
Repair difficulty
Time required
15 minutes or less
Effective articles & videos to help repair your walk-behind mowers
Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.
Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…
Learn about the different kinds of mower blades and how to maintain them.…