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Troybilt 998Q gas lawn mower Parts
Here are the diagrams and repair parts for Troybilt 998Q gas lawn mower, as well as links to manuals and error code tables, if available.
Owner’s manualBy Schematic
By Part
SELECT DIAGRAM
Browse Parts for 998Q Walk-Behind Mowers
Transmission/bag diagram
Axle Assembly
Part #638-0012Replaced by #938-0012A
Manufacturer substitutionThis part replaces 638-0012. Substitute parts can look different from the original.In Stock$90.056% OFF Phone Price : $96.05
Qty
Handle/deck/wheels/blade diagram
Cable Tie
Part #726-0240Replaced by #726-0178
Manufacturer substitutionThis part replaces 726-0240. Substitute parts can look different from the original.This item is not returnableIn Stock$25.35QtyHandle/deck/wheels/blade diagram
Lever
Part #731-0620Replaced by #731-0620A
Manufacturer substitutionThis part replaces 731-0620. Substitute parts can look different from the original.In Stock$28.46QtyTransmission/bag diagram
Clvis Pin
Part #711-0835Replaced by #911-0835
Manufacturer substitutionThis part replaces 711-0835. Substitute parts can look different from the original.This item is not returnableIn Stock$23.0721% OFF Phone Price : $29.07QtyHandle/deck/wheels/blade diagram
Lawn & Garden Equipment Carriage Bolt
Part #710-0167Replaced by #710-05177
Manufacturer substitutionThis part replaces 710-0167. Substitute parts can look different from the original.This item is not returnableIn Stock$8.91QtyHandle/deck/wheels/blade diagram
Hex Nut
Part #712-0138Replaced by #912-0138
Manufacturer substitutionThis part replaces 712-0138. Substitute parts can look different from the original.In Stock$11.86QtyHandle/deck/wheels/blade diagram
Chute:asm T0
Part #631-0066Replaced by #931-0066
Manufacturer substitutionThis part replaces 631-0066. Substitute parts can look different from the original.In Stock$148.637% OFF Phone Price : $160.63QtyHandle/deck/wheels/blade diagram
Pivot Rod
Part #747-09650Replaced by #747-09650A
Manufacturer substitutionThis part replaces 747-09650. Substitute parts can look different from the original.In Stock$21.62QtyHandle/deck/wheels/blade diagram
Lawn Mower Hub Cap
Part #731-0981AReplaced by #731-0981C
Manufacturer substitutionThis part replaces 731-0981A. Substitute parts can look different from the original.This item is not returnableIn Stock$19.179% OFF Phone Price : $21.17QtyHandle/deck/wheels/blade diagram
Wave Washer
Part #736-0526Replaced by #936-0526
Manufacturer substitutionThis part replaces 736-0526. Substitute parts can look different from the original.In Stock$10.9815% OFF Phone Price : $12.98Qty
Most common symptoms to help you fix your 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: 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…
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…
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…
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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