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Troybilt 34021 walk-behind lawn mower Parts
Here are the diagrams and repair parts for Troybilt 34021 walk-behind lawn mower, as well as links to manuals and error code tables, if available.
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Browse Parts for 34021 Walk-Behind Mowers
Engines, mower deck and blade assemblies diagram
Troy-bilt Cover
Part #1768954Replaced by #956-04183
Manufacturer substitutionThis part replaces 1768954. Substitute parts can look different from the original.In Stock$156.74
Qty
Engines, mower deck and blade assemblies diagram
Troy-bilt Kit
Part #1768306Get free shipping with Automatic ReorderReplaced by #1764381
Manufacturer substitutionThis part replaces 1768306. Substitute parts can look different from the original.In Stock$62.84QtyHandlebar and mower controls--models 34020 and 34021 diagram
Troy-bilt Pin
Part #1766536Replaced by #911-0813
Manufacturer substitutionThis part replaces 1766536. Substitute parts can look different from the original.In Stock$12.4414% OFF Phone Price : $14.44
QtyTroy-bilt Screw
Part #1767754Replaced by #710-04460
Manufacturer substitutionThis part replaces 1767754. Substitute parts can look different from the original.In Stock$30.95QtyHandlebar and mower controls--models 34020 and 34021 diagram
Troy-bilt Knob
Part #9057Replaced by #GW-9057
Manufacturer substitutionThis part replaces 9057. Substitute parts can look different from the original.In Stock$14.8712% OFF Phone Price : $16.87QtyCutting height control and wheel assemblies diagram
Troy-bilt Clip
Part #1765550Replaced by #1765550
Manufacturer substitutionThis part replaces 1765550. Substitute parts can look different from the original.In Stock$20.89QtyCutting height control and wheel assemblies diagram
Troy-bilt Hex Nut
Part #9807Replaced by #712-0375
Manufacturer substitutionThis part replaces 9807. Substitute parts can look different from the original.This item is not returnableIn Stock$6.74QtyEngines, mower deck and blade assemblies diagram
Troy-bilt Lock Washer
Part #9914Replaced by #736-0921
Manufacturer substitutionThis part replaces 9914. Substitute parts can look different from the original.This item is not returnableIn Stock$8.20QtyEngines, mower deck and blade assemblies diagram
Troy-bilt Nut
Part #1766514Replaced by #912-0273
Manufacturer substitutionThis part replaces 1766514. Substitute parts can look different from the original.This item is not returnableIn Stock$8.43QtyWheel drive assemblies--models 34021, 34022, 34023, 34311 diagram
Troy-bilt Cotter Pin
Part #9338Replaced by #714-04048
Manufacturer substitutionThis part replaces 9338. Substitute parts can look different from the original.In Stock$14.74Qty
Symptoms for gas walk-behind mowers
Choose a symptom to see related walk-behind mower repairs.
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…
Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…
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 front deck tray
Learn how to replace the front deck tray on your lawn mower if it's cracked or damaged.…
Repair time and Difficulty
60 minutes or less
How to replace a lawn mower transmission
Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…
Repair time and Difficulty
60 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 time and Difficulty
45 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.
Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…
Learn about the top 10 must-have electric lawn & garden tools for 2023…
Learn about the different kinds of mower blades and how to maintain them.…
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