Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Troybilt
Gas Line Trimmer

Model # TB70SS Official Troybilt trimmer

Here are the diagrams and repair parts for Official Troybilt TB70SS trimmer, 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.

Owner’s manual

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 90 parts  |
Rope Guide 753-1200
#25

Engine diagram

Rope guide

Part #753-1200

$20.63
In Stock
Line Trimmer Handle 791-182167
#9

Boom and trimmer diagram

Line trimmer handle

Part #791-182167

$102.80
In Stock
Gasket 753-04619
#46

Engine diagram

Gasket

Part #753-04619

$4.33
In Stock
Hose 791-683947B
#9

Engine diagram

Hose

Part #791-683947B

Replaced by #791-683974B

?
Manufacturer substitution
This part replaces 791-683947B. Substitute parts can look different from the original.
$31.56 | 
16% OFF Phone Price : $37.56
In Stock
Rope 791-613103
#28

Engine diagram

Rope

Part #791-613103

The manufacturer no longer makes this part, and there's no substitute part

Clutch Drum 791-153592
#35

Engine diagram

Clutch drum

Part #791-153592

The manufacturer no longer makes this part, and there's no substitute part

Filter 791-180350B
#2

Engine diagram

Filter

Part #791-180350B

The manufacturer no longer makes this part, and there's no substitute part

Carburetor Gasket 753-1208
#12

Engine diagram

Carburetor gasket

Part #753-1208

The manufacturer no longer makes this part, and there's no substitute part

Strap 791-682075B

#NI06

All parts diagram

Strap

Part #791-682075B

The manufacturer no longer makes this part, and there's no substitute part

Screws Nuts 791-180547
#21

Boom and trimmer diagram

Screws nuts

Part #791-180547

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

View all

Why does my gas line trimmer run rough?

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Read more

Why won't my gas line trimmer start?

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Read more

Why does my gas line trimmer leak gas?

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Read more

Repair guides for gas line trimmers

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

View all
How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Read more
Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas line trimmers

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

View all
How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Read more
Solving 3 common problems with line trimmer cutting lines

Solving 3 common problems with line trimmer cutting lines

Follow these tips to prevent the cutting line on your grass line trimmer from breaking or feeding out too much or too li…

Read more
How to replace a line trimmer fuel line video

How to replace a line trimmer fuel line video

Follow the steps in this video to replace a leaking fuel line in a line trimmer.…

Read more

Parts & More