MTD
Lawn & Garden Engine

Model # 170-DU Official MTD engine

Here are the diagrams and repair parts for Official MTD 170-DU 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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ALL PARTS
Showing 10 of 136 parts  |

Air Filter 951-14262
#41

Carbon canister/air cleaner diagram

Air filter

Part #951-14262

Replaced by #951-10794

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Manufacturer substitution
This part replaces 951-14262. Substitute parts can look different from the original.
BEST SELLER
$12.93
14% OFF Was : $15.00
In Stock
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11589
#V

Carburetor diagram

Lawn & garden equipment engine carburetor float bowl gasket

Part #951-11589

Replaced by #951-11589A

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Manufacturer substitution
This part replaces 951-11589. Substitute parts can look different from the original.
BEST SELLER
In Stock
Lawn & Garden Equipment Engine Recoil Starter (replaces 951-12127) 951-12418
#101

Recoil starter diagram

Lawn & garden equipment engine recoil starter (replaces 951-12127)

Part #951-12418

BEST SELLER
$108.74
8% OFF Phone Price : $118.74
In Stock
Snowblower Throttle Return Spring 951-10664
#116

Fuel tank diagram

Snowblower throttle return spring

Part #951-10664

Replaced by #751P10664A

?
Manufacturer substitution
This part replaces 951-10664. Substitute parts can look different from the original.
This item is not returnable
$3.57
22% OFF Phone Price : $4.57
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket (replaces 751-11571) 951-11571
#32

Carburetor diagram

Lawn & garden equipment engine carburetor gasket (replaces 751-11571)

Part #951-11571

This item is not returnable
$8.50
11% OFF Phone Price : $9.50
In Stock
Snowblower Muffler Gasket 951-11289
#25

Muffler diagram

Snowblower muffler gasket

Part #951-11289

Replaced by #751P11289A

?
Manufacturer substitution
This part replaces 951-11289. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn & Garden Equipment Fuel Line Kit (replaces 751-10650, 951-10795) 951-10650
#122

Fuel tank diagram

Lawn & garden equipment fuel line kit (replaces 751-10650, 951-10795)

Part #951-10650

$37.41
12% OFF Phone Price : $42.41
In Stock
Lawn & Garden Equipment Engine Air Filter 951-12136
#42

Carbon canister/air cleaner diagram

Lawn & garden equipment engine air filter

Part #951-12136

This item is not returnable
$23.25
18% OFF Phone Price : $28.25
In Stock
Lawn & Garden Equipment Engine Carburetor Insulator 951-11568
#29

Carburetor diagram

Lawn & garden equipment engine carburetor insulator

Part #951-11568

Replaced by #751P11568A

?
Manufacturer substitution
This part replaces 951-11568. Substitute parts can look different from the original.
This item is not returnable
In Stock
Lawn & Garden Equipment Engine Flywheel Fan 951-10934
#95

Recoil starter diagram

Lawn & garden equipment engine flywheel fan

Part #951-10934

Replaced by #951-10909A

?
Manufacturer substitution
This part replaces 951-10934. Substitute parts can look different from the original.
In Stock

Symptoms for treadmills

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Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…