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Model # 4P90HUC Official MTD engine

Here are the diagrams and repair parts for Official MTD 4P90HUC 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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Owner’s manual
Error Codes

Model diagram and schematic

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Showing 10 of 127 parts  |
Lawn & Garden Equipment Engine Spark Plug 951-10292
#19

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
#123

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 Tractor Air Filter 937-05122
#32

Air intake diagram

Lawn tractor air filter

Part #937-05122

BEST SELLER
$26.90 | 
18% OFF Phone Price : $32.90
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-12261
#24

Carburetor assembly 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 Starter Motor 951-12207
#73

Crankcase 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 & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#DD

Carburetor assembly 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 Intake Manifold Gasket 951-12258A
#26

Air intake 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 Tractor Engine Sump Filter 951-12249
#116

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
#92

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 Tractor Engine Oil Drain Plug (replaces 710-05311) 951-11644
#99

Crankshaft/crankcase cover diagram

Lawn tractor engine oil drain plug (replaces 710-05311)

Part #951-11644

This item is not returnable
$15.69 | 
11% OFF Phone Price : $17.69
In Stock

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