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.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 136 parts  |

Lawn & Garden Equipment Engine Spark Plug 951-10292
#18

Cylinder head/valve cover 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 Carburetor Gasket 951-11569A
#30

Carburetor diagram

Lawn & garden equipment engine carburetor gasket

Part #951-11569A

Replaced by #751P12005A

?
Manufacturer substitution
This part replaces 951-11569A. Substitute parts can look different from the original.
BEST SELLER
$7.53
12% OFF Phone Price : $8.53
In Stock
Lawn & Garden Equipment Engine Carburetor Gasket 951-11567
#28

Carburetor diagram

Lawn & garden equipment engine carburetor gasket

Part #951-11567

Replaced by #751P11567B

?
Manufacturer substitution
This part replaces 951-11567. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$3.07
25% OFF Phone Price : $4.07
In Stock
Air Filter 951-14262
#41

Carbon canister/air cleaner diagram

Air filter

Part #951-14262

Replaced by #951-10794

?
Manufacturer substitution
This part replaces 951-14262. Substitute parts can look different from the original.
BEST SELLER
$12.58
14% OFF Phone Price : $14.58
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

?
Manufacturer substitution
This part replaces 951-11589. Substitute parts can look different from the original.
BEST SELLER
$9.31
10% OFF Phone Price : $10.31
In Stock
Kmart Lawn & Garden Equipment Engine Carburetor Gasket (replaces 751-11571) 951-11571
#32

Carburetor diagram

Kmart 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
Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 951-11349
#Z

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 Air Filter 951-12136
#42

Carbon canister/air cleaner diagram

Lawn & garden equipment engine air filter

Part #951-12136

This item is not returnable
$26.00
19% OFF Phone Price : $32.00
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 Key 951-10307
#68

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

Symptoms for gas ranges

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Repair difficulty
Time required
 60 minutes or less
How to replace a gas range oven control board

How to replace a gas range oven control board

These step-by-step instructions explain how to replace an oven control board on a gas range…

Repair difficulty
Time required
 15 minutes or less

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

Top questions about Sears and Sears PartsDirect

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.…