MTD
Lawn & Garden Engine

Model # 683-WU Official MTD engine

Here are the diagrams and repair parts for Official MTD 683-WU engine, 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 138 parts  |

Lawn & Garden Equipment Engine Spark Plug 951-10292
#14

Engine diagram

Lawn & garden equipment engine spark plug

Part #951-10292

Replaced by #951-10292A

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Manufacturer substitution
This part replaces 951-10292. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.88
63% OFF MSRP : $16.00
In Stock
Lawn & Garden Equipment Engine Starter Key (replaces 731-05632, 751-10630) 951-10630
#126

Engine diagram

Lawn & garden equipment engine starter key (replaces 731-05632, 751-10630)

Part #951-10630

BEST SELLER
$8.44
11% OFF Phone Price : $9.44
In Stock
Lawn & Garden Equipment Engine Carburetor Primer Bulb (replaces 951-10639) 951-10639A
#41

Engine diagram

Lawn & garden equipment engine carburetor primer bulb (replaces 951-10639)

Part #951-10639A

BEST SELLER
$26.71
16% OFF Phone Price : $31.71
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#Y

Engine diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11349

Replaced by #951-11349A

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Manufacturer substitution
This part replaces 951-11349. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.24
22% OFF MSRP : $6.70
In Stock
Lawn & Garden Equipment Engine Fuel Bowl Mounting Bolt 710-04945
#M

Engine diagram

Lawn & garden equipment engine fuel bowl mounting bolt

Part #710-04945

This item is not returnable
$6.46
13% OFF Phone Price : $7.46
In Stock
Lawn & Garden Equipment Engine Flywheel Key 951-10307
#63

Engine diagram

Lawn & garden equipment engine flywheel key

Part #951-10307

Replaced by #751P10307A

?
Manufacturer substitution
This part replaces 951-10307. Substitute parts can look different from the original.
This item is not returnable
$3.22
24% OFF Phone Price : $4.22
In Stock
Lawn & Garden Equipment Engine Carburetor 951-05389
#32

Engine diagram

Lawn & garden equipment engine carburetor

Part #951-05389

$117.95
8% OFF Phone Price : $127.95
In Stock
Lawn & Garden Equipment Engine Mounting Screw 710-04915
#23

Engine diagram

Lawn & garden equipment engine mounting screw

Part #710-04915

This item is not returnable
$6.75
13% OFF Phone Price : $7.75
In Stock
Lawn & Garden Equipment Engine Fuel Line 935-05038
#31

Engine diagram

Lawn & garden equipment engine fuel line

Part #935-05038

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Oil Seal 951-11499
#110

Engine diagram

Lawn & garden equipment engine oil seal

Part #951-11499

Replaced by #951-11499A

?
Manufacturer substitution
This part replaces 951-11499. Substitute parts can look different from the original.
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

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

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

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.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

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

What are the main components of a lawn mower?

What are the main components of a lawn mower?

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