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McCulloch
Gas Line Trimmer

Model # TITAN 3900 11-400070-01 Official McCulloch trimmer

Here are the diagrams and repair parts for Official McCulloch TITAN-3900-11-400070-01 trimmer, 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 171 parts  |
Screw M5x30 235804
Screw m5x30

Part #235804

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

Woodruff Key 102164
#40

Engine assembly diagram

Woodruff key

Part #102164

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

Muffler Assembly 240554
#26

Engine assembly diagram

Muffler assembly

Part #240554

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

Housing Td D 240521
#73

Shaft/shield/cutter assembly diagram

Housing td d

Part #240521

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

Cushion 227186
#67

Engine assembly diagram

Cushion

Part #227186

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

Throttle Wire 240489
#34

Shaft/shield/cutter assembly diagram

Throttle wire

Part #240489

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

Insulator Ca 227692
#7

Engine assembly diagram

Insulator ca

Part #227692

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

Stud,left-al 322106
#97

Shaft/shield/cutter assembly diagram

Stud,left-al

Part #322106

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

Spacer 240801
#75

Engine assembly diagram

Spacer

Part #240801

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

Clamp Handle 227046
#17

Shaft/shield/cutter assembly diagram

Clamp handle

Part #227046

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.

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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…

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Why won't my gas line trimmer start?

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

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Why does my gas line trimmer leak gas?

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

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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.

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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…

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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…

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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.

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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.…

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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…

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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.…

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