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Model # 4P90JUE Official MTD engine

Here are the diagrams and repair parts for Official MTD 4P90JUE 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 148 parts  |

Lawn & Garden Equipment Engine Spark Plug 951-10292
#160

Cylinder head 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 Oil Filter 951-12690
#115

Crankshaft & crankcase cover diagram

Lawn & garden equipment engine oil filter

Part #951-12690

Replaced by #490-201-Y010

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Manufacturer substitution
This part replaces 951-12690. Substitute parts can look different from the original.
BEST SELLER
$15.52
43% OFF MSRP : $27.00
In Stock
Lawn Tractor Air Filter 937-05122
#124

Air intake diagram

Lawn tractor air filter

Part #937-05122

BEST SELLER
$26.90
16% OFF Phone Price : $31.90
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-12261
#134

Carburetor assembly diagram

Lawn & garden equipment engine carburetor gasket

Part #951-12261

BEST SELLER
This item is not returnable
$6.35
14% OFF Phone Price : $7.35
In Stock
Lawn & Garden Equipment Engine Carburetor 951-05149
#129

Carburetor assembly diagram

Lawn & garden equipment engine carburetor

Part #951-05149

$147.58
6% OFF Phone Price : $157.58
In Stock
Lawn & Garden Equipment Engine Intake Manifold Gasket 951-12258A
#128

Carburetor assembly diagram

Lawn & garden equipment engine intake manifold gasket

Part #951-12258A

This item is not returnable
$6.35
14% OFF Phone Price : $7.35
In Stock
Lawn & Garden Equipment Engine Carburetor Insulator Gasket 951-12263
#136

Carburetor assembly diagram

Lawn & garden equipment engine carburetor insulator gasket

Part #951-12263

This item is not returnable
$6.35
14% OFF Phone Price : $7.35
In Stock
Lawn & Garden Equipment Engine Stator 951-12224
#44

Ignition & electrical diagram

Lawn & garden equipment engine stator

Part #951-12224

$83.26
24% OFF MSRP : $110.00
In Stock
Lawn & Garden Equipment Engine Valve Cover Gasket 951-12267
#142

Cylinder head diagram

Lawn & garden equipment engine valve cover gasket

Part #951-12267

This item is not returnable
$14.25
12% OFF Phone Price : $16.25
In Stock
Lawn & Garden Equipment Engine Voltage Regulator 951-12242
#86

Crankshaft & crankcase cover diagram

Lawn & garden equipment engine voltage regulator

Part #951-12242

$63.45
7% OFF Phone Price : $68.45
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 walk-behind mowers

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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Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

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