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Model # HSK850-8303B Official Tecumseh engine
Here are the diagrams and repair parts for Official Tecumseh HSK850-8303B engine, as well as links to manuals and error code tables, if available.
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HSK850-8303B Engine
#100
Engine 71-143 hsk850-8303b diagram
Lamination
Part #34443A
Replaced by #34443D
?
Manufacturer substitution
This part replaces 34443A. Substitute parts can look different from the original.
$40.75 |
13% OFF Phone Price : $46.75
In Stock
#44
Carburetor 632642 (71/143) diagram
Gasket
Part #27110
Replaced by #27110A
?
Manufacturer substitution
This part replaces 27110. Substitute parts can look different from the original.
This item is not returnable
$2.49 |
29% OFF Phone Price : $3.49
Back Order
#351
Engine 71-143 hsk850-8303b diagram
Lawn & garden equipment engine fuel line (replaces 32180, 32180a, 32180b, 500236, tc-32180c)
Part #32180C
This item is not returnable
$2.49 |
29% OFF Phone Price : $3.49
Back Order
#361
Engine 71-143 hsk850-8303b diagram
Lawn & garden equipment torx screw
Part #30063
This item is not returnable
$2.49 |
29% OFF Phone Price : $3.49
In Stock
#27
Carburetor 632642 (71/143) diagram
Troybilt carburetor float
Part #631024
This item is not returnable
$2.16
Back Order
Lawn & garden equipment engine recoil starter handle (replaces 590443, 590452)
Part #590701
This item is not returnable
$7.80 |
11% OFF Phone Price : $8.80
Back Order
#31
Carburetor 632642 (71/143) diagram
Lawn & garden equipment engine carburetor float pin
Part #631022
This item is not returnable
$2.49 |
29% OFF Phone Price : $3.49
Back Order
#33
Carburetor 632642 (71/143) diagram
Carburetor lawn & garden equipment engine gasket
Part #27554
This item is not returnable
$2.49 |
29% OFF Phone Price : $3.49
Back Order
#350
Engine 71-143 hsk850-8303b diagram
Primer
Part #570629A
Replaced by #570629B
?
Manufacturer substitution
This part replaces 570629A. Substitute parts can look different from the original.
This item is not returnable
$11.80
In Stock
#92
Engine 71-143 hsk850-8303b diagram
Troybilt lawn & garden equipment washer
Part #650815
This item is not returnable
$2.16
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 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.…