MTD
Lawn & Garden Engine

Model # 4P90MUA Official MTD engine

Here are the diagrams and repair parts for Official MTD 4P90MUA 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 173 parts  |

Lawn & Garden Equipment Engine Spark Plug 951-10292
#162

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
$6.47
60% OFF MSRP : $16.00
In Stock
Lawn & Garden Equipment Engine Oil Filter 951-12690
#114

Crankshaft & crankcase cover diagram

Lawn & garden equipment engine oil filter

Part #951-12690

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$14.14
12% OFF Phone Price : $16.14
In Stock
Lawn & Garden Equipment Engine Air Filter 951-12260
#126

Air intake diagram

Lawn & garden equipment engine air filter

Part #951-12260

Replaced by #937-05065A

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Manufacturer substitution
This part replaces 951-12260. Substitute parts can look different from the original.
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$22.20
23% OFF MSRP : $29.00
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Carburetor 951-12823
#131

Carburetor diagram

Carburetor

Part #951-12823

Replaced by #951-12771A

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Manufacturer substitution
This part replaces 951-12823. Substitute parts can look different from the original.
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$128.52
14% OFF MSRP : $150.00
In Stock
Lawn & Garden Equipment Engine Pre-filter 951-12256
#124

Air intake diagram

Lawn & garden equipment engine pre-filter

Part #951-12256

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$8.33
11% OFF Phone Price : $9.33
In Stock
Lawn & Garden Equipment Engine Ignition Coil 951-12220
#39

Ignition & electrical diagram

Lawn & garden equipment engine ignition coil

Part #951-12220

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$85.19
23% OFF MSRP : $110.00
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Lawn & Garden Equipment Engine Carburetor Gasket 951-12261
#136

Carburetor diagram

Lawn & garden equipment engine carburetor gasket

Part #951-12261

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$6.35
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Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#CC

Carburetor diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11349

Replaced by #951-11349A

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Manufacturer substitution
This part replaces 951-11349. Substitute parts can look different from the original.
BEST SELLER
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$5.24
22% OFF MSRP : $6.70
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Lawn & Garden Equipment Engine Carburetor Insulator Gasket 951-12263
#138

Carburetor 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 Starter Motor 951-12207
#9

Starter diagram

Lawn & garden equipment engine starter motor

Part #951-12207

$214.67
$10.00 OFF Phone Price : $224.67
In Stock

Symptoms for gas cooktops

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

Repair guides for gas cooktops

How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Repair difficulty
Time required
 45 minutes or less
How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

Repair difficulty
Time required
 30 minutes or less

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