MTD
Lawn & Garden Engine

Model # 490-SU Official MTD engine

Here are the diagrams and repair parts for Official MTD 490-SU 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 145 parts  |

Lawn Mower Fuel Cap 951-10649
#17

Engine diagram

Lawn mower fuel cap

Part #951-10649

Replaced by #951-12533

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Manufacturer substitution
This part replaces 951-10649. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$31.39
14% OFF Phone Price : $36.39
In Stock
Snowblower Oil Drain Plug 710-04906
#86

Engine diagram

Snowblower oil drain plug

Part #710-04906

This item is not returnable
$10.26
16% OFF Phone Price : $12.26
In Stock
Throttle Knob 951-10757
#4

Engine diagram

Throttle knob

Part #951-10757

Replaced by #951-11224

?
Manufacturer substitution
This part replaces 951-10757. Substitute parts can look different from the original.
This item is not returnable
$12.09
14% OFF Phone Price : $14.09
In Stock
Snowblower Ignition Switch (replaces 751-10637, 925-04031a) 951-10637
#6

Engine diagram

Snowblower ignition switch (replaces 751-10637, 925-04031a)

Part #951-10637

This item is not returnable
$18.67
10% OFF Phone Price : $20.67
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11970
#152

Engine diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11970

This item is not returnable
$10.46
16% OFF Phone Price : $12.46
In Stock
Snowblower Engine Oil Drain Pipe And Cap (replaces 751-10641) 951-10641

#NI17

All parts diagram

Snowblower engine oil drain pipe and cap (replaces 751-10641)

Part #951-10641

This item is not returnable
$19.90
9% OFF Phone Price : $21.90
In Stock
Lawn Tractor Engine Oil Drain Pipe (replaces 751-11350) 951-11350
#84

Engine diagram

Lawn tractor engine oil drain pipe (replaces 751-11350)

Part #951-11350

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Carburetor Primer Bulb 951-11824
#22

Engine diagram

Lawn & garden equipment engine carburetor primer bulb

Part #951-11824

This item is not returnable
$17.13
10% OFF Phone Price : $19.13
In Stock
Lawn & Garden Equipment Engine Fuel Bowl Mounting Bolt 710-04945
#155

Engine 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
Lawn & Garden Equipment Engine Rocker Arm 951-11981
#123

Engine diagram

Lawn & garden equipment engine rocker arm

Part #951-11981

Replaced by #951-11981A

?
Manufacturer substitution
This part replaces 951-11981. Substitute parts can look different from the original.
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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