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MTD
Lawn & Garden Engine

Model # 478-SUB Official MTD engine

Here are the diagrams and repair parts for Official MTD 478-SUB 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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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 141 parts  |
Lawn & Garden Equipment Engine Spark Plug 951-10292
#108

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 | 
63% OFF MSRP : $16.00
In Stock
Key 731-05632
#7

Muffler diagram

Key

Part #731-05632

Replaced by #951-10630

?
Manufacturer substitution
This part replaces 731-05632. Substitute parts can look different from the original.
BEST SELLER
$8.44 | 
11% OFF Phone Price : $9.44
In Stock
Lawn & Garden Equipment Engine Carburetor Primer Bulb (replaces 951-10639) 951-10639A
#134

Carburetor diagram

Lawn & garden equipment engine carburetor primer bulb (replaces 951-10639)

Part #951-10639A

BEST SELLER
$26.71 | 
16% OFF Phone Price : $31.71
In Stock
Snowblower Carburetor Gasket (replaces 751-11223) 951-11223
#132

Carburetor diagram

Snowblower carburetor gasket (replaces 751-11223)

Part #951-11223

This item is not returnable
$8.09 | 
11% OFF Phone Price : $9.09
In Stock
Snowblower Recoil Starter Assembly (replaces 751-11208) 951-11208
#97

Electric starter/flywheel diagram

Snowblower recoil starter assembly (replaces 751-11208)

Part #951-11208

$88.72 | 
26% OFF MSRP : $120.00
In Stock
Lawn & Garden Equipment Engine Flywheel Key 951-10307
#55

Crankshaft/crankcase 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
Snowblower Carburetor Insulator Gasket 951-11225
#130

Carburetor diagram

Snowblower carburetor insulator gasket

Part #951-11225

This item is not returnable
$6.03
In Stock
Lawn & Garden Equipment Engine Flange Bolt 710-04974
#99

Electric starter/flywheel diagram

Lawn & garden equipment engine flange bolt

Part #710-04974

This item is not returnable
$11.17
In Stock
Lawn & Garden Equipment Engine Mounting Screw 710-04915
Lawn & garden equipment engine mounting screw

Part #710-04915

This item is not returnable
$6.75 | 
13% OFF Phone Price : $7.75
In Stock
Lawn & Garden Equipment Engine Fuel Bowl Mounting Bolt 710-04945
#Y

Carburetor diagram

Lawn & garden equipment engine fuel bowl mounting bolt

Part #710-04945

This item is not returnable
$6.46 | 
13% OFF Phone Price : $7.46
In Stock

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