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Model # 251700 TO 251799 (0177 - 0177) Official Briggs & Stratton gas engine
Here are the diagrams and repair parts for Official Briggs & Stratton 251700 TO 251799 (0177 - 0177) gas engine, as well as links to manuals and error code tables, if available.
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251700 TO 251799 (0177 - 0177) Gas Engine
#337
All parts diagram
Spark plug
Part #298809
Replaced by #796112S
?
Manufacturer substitution
This part replaces 298809. Substitute parts can look different from the original.
This item is not returnable
$5.24 |
16% OFF Phone Price : $6.24
In Stock
#24
All parts diagram
Flywheel key
Part #61760
Replaced by #222698S
?
Manufacturer substitution
This part replaces 61760. Substitute parts can look different from the original.
This item is not returnable
$3.29 |
23% OFF Phone Price : $4.29
In Stock
#219
All parts diagram
Gear
Part #391764
Replaced by #691968
?
Manufacturer substitution
This part replaces 391764. Substitute parts can look different from the original.
$44.07 |
12% OFF Phone Price : $50.07
In Stock
#21
All parts diagram
Oil filter plug
Part #66768
Replaced by #281658S
?
Manufacturer substitution
This part replaces 66768. Substitute parts can look different from the original.
This item is not returnable
$5.79 |
15% OFF Phone Price : $6.79
In Stock
#601
All parts diagram
Clamp
Part #93053
Replaced by #791850
?
Manufacturer substitution
This part replaces 93053. Substitute parts can look different from the original.
This item is not returnable
$4.74 |
17% OFF Phone Price : $5.74
In Stock
#15
All parts diagram
Oil plug
Part #91084
Replaced by #690946
?
Manufacturer substitution
This part replaces 91084. Substitute parts can look different from the original.
This item is not returnable
$9.59 |
9% OFF Phone Price : $10.59
In Stock
#334
All parts diagram
Screw
Part #93381
Replaced by #691061
?
Manufacturer substitution
This part replaces 93381. Substitute parts can look different from the original.
This item is not returnable
$5.09 |
16% OFF Phone Price : $6.09
In Stock
#66
All parts diagram
Clutch-str.
Part #392198
Replaced by #399671
?
Manufacturer substitution
This part replaces 392198. Substitute parts can look different from the original.
$40.49 |
13% OFF Phone Price : $46.49
In Stock
#332
All parts diagram
Hex nut
Part #92284
Replaced by #690662
?
Manufacturer substitution
This part replaces 92284. Substitute parts can look different from the original.
This item is not returnable
$8.29 |
11% OFF Phone Price : $9.29
In Stock
#11
All parts diagram
Breather tube
Part #280100
Replaced by #692253
?
Manufacturer substitution
This part replaces 280100. Substitute parts can look different from the original.
This item is not returnable
$14.49 |
12% OFF Phone Price : $16.49
In Stock
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
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…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
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 replace a lawn mower spark plug
Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…
Repair difficulty
Time required
15 minutes or less

How to replace a lawn mower blade
Check your lawn mower blade regularly and replaced it if it's bent or damaged. …
Repair difficulty
Time required
15 minutes or less

How to replace a lawn mower flywheel key on a flathead engine
When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…
Repair difficulty
Time required
45 minutes or less
Effective articles & videos to help repair your lawn & garden engines
Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Learn about the main parts of a lawn mower and when to replace parts.…