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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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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
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

?
Manufacturer substitution
This part replaces 951-10292. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.88 | 
15% OFF Phone Price : $6.88
Back Order
Lawn & Garden Equipment Engine Oil Filter 951-12690
#114

Crankshaft & crankcase cover diagram

Lawn & garden equipment engine oil filter

Part #951-12690

Replaced by #490-201-Y010

?
Manufacturer substitution
This part replaces 951-12690. Substitute parts can look different from the original.
BEST SELLER
$16.48 | 
11% OFF Phone Price : $18.48
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-12261
#136

Carburetor diagram

Lawn & garden equipment engine carburetor gasket

Part #951-12261

This item is not returnable
$6.35 | 
14% OFF Phone Price : $7.35
In Stock
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

?
Manufacturer substitution
This part replaces 951-11349. Substitute parts can look different from the original.
This item is not returnable
$5.64 | 
15% OFF Phone Price : $6.64
In Stock
Lawn & Garden Equipment Engine Starter Motor 951-12207
#9

Starter diagram

Lawn & garden equipment engine starter motor

Part #951-12207

Replaced by #751P12207A

?
Manufacturer substitution
This part replaces 951-12207. Substitute parts can look different from the original.
$223.11 | 
5% OFF Phone Price : $235.11
In Stock
Lawn Tractor Engine Manifold Gasket 951-12258
#130

Air intake diagram

Lawn tractor engine manifold gasket

Part #951-12258

Replaced by #951-12258A

?
Manufacturer substitution
This part replaces 951-12258. Substitute parts can look different from the original.
This item is not returnable
$6.35 | 
14% OFF Phone Price : $7.35
In Stock
Lawn Tractor Engine Sump Filter 951-12249
#100

Crankshaft & crankcase cover diagram

Lawn tractor engine sump filter

Part #951-12249

This item is not returnable
$6.35 | 
14% OFF Phone Price : $7.35
In Stock
Lawn & Garden Equipment Engine Flywheel Key 951-10307
#77

Crankshaft & crankcase cover diagram

Lawn & garden equipment engine flywheel key

Part #951-10307

Replaced by #751P10307A

?
Manufacturer substitution
This part replaces 951-10307. Substitute parts can look different from the original.
This item is not returnable
$3.22 | 
24% OFF Phone Price : $4.22
In Stock
Lawn & Garden Equipment Engine Oil Seal 951-11375
#118

Crankshaft & crankcase cover diagram

Lawn & garden equipment engine oil seal

Part #951-11375

Replaced by #951-11375A

?
Manufacturer substitution
This part replaces 951-11375. Substitute parts can look different from the original.
$26.80
In Stock
Lawn & Garden Equipment Engine Valve Cover Gasket 951-12267
#144

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

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