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Honda
Lawn & Garden Engine

Model # GX390T2 Official Honda engine

Here are the diagrams and repair parts for Official Honda GX390T2 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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ALL PARTS
Showing 10 of 175 parts  |
Piston Ring Set 13010-Z5R-004

#55

All parts diagram

Piston ring set

Part #13010-Z5R-004

The manufacturer no longer makes this part, and there's no substitute part

Flywheel 31110-Z5T-000

#46

All parts diagram

Flywheel

Part #31110-Z5T-000

The manufacturer no longer makes this part, and there's no substitute part

Bolt, Head Cover 90014-Z5T-000

#8

All parts diagram

Bolt, head cover

Part #90014-Z5T-000

The manufacturer no longer makes this part, and there's no substitute part

Spring 16592-883-310

#167

All parts diagram

Spring

Part #16592-883-310

The manufacturer no longer makes this part, and there's no substitute part

Lawn Mower Fuel Cap 17620-Z4H-020

#81

All parts diagram

Lawn mower fuel cap

Part #17620-Z4H-020

The manufacturer no longer makes this part, and there's no substitute part

Gasket, Elbow 17417-Z5T-000

#122

All parts diagram

Gasket, elbow

Part #17417-Z5T-000

The manufacturer no longer makes this part, and there's no substitute part

Screw 90004-ZE2-W01

#88

All parts diagram

Screw

Part #90004-ZE2-W01

The manufacturer no longer makes this part, and there's no substitute part

Lawn & Garden Equipment Engine Bolt 92900-08032-0E

#18

All parts diagram

Lawn & garden equipment engine bolt

Part #92900-08032-0E

The manufacturer no longer makes this part, and there's no substitute part

Key (25x18) 90741-ZE2-000

#47

All parts diagram

Key (25x18)

Part #90741-ZE2-000

The manufacturer no longer makes this part, and there's no substitute part

Screw Set, Drain 16024-Z5T-901

#151

All parts diagram

Screw set, drain

Part #16024-Z5T-901

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

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Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

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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.

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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…

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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. …

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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…

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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.

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Top questions about Sears and Sears PartsDirect

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What are the main components of a lawn mower?

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