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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  |
Air Filter Cover 227784
#2

Engine assembly diagram

Air filter cover

Part #227784

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

Ring 111073
#98

Shaft/shield/cutter assembly diagram

Ring

Part #111073

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

Gas Cylinder 227239
#13

Engine assembly diagram

Gas cylinder

Part #227239

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

Bolt (ps Ii 229697
#100

Shaft/shield/cutter assembly diagram

Bolt (ps ii

Part #229697

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

Nut 236732
#82

Shaft/shield/cutter assembly diagram

Nut

Part #236732

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

Screw 224175
#118

Shaft/shield/cutter assembly diagram

Screw

Part #224175

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

Hex Nut 216751
#2

Shaft/shield/cutter assembly diagram

Hex nut

Part #216751

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

Starter Pawl 240492
#64A

Engine assembly diagram

Starter pawl

Part #240492

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

Plate 227242
#23

Engine assembly diagram

Plate

Part #227242

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

Gear Box Assembly 240476
#5

Shaft/shield/cutter assembly diagram

Gear box assembly

Part #240476

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 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 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 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…

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…

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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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Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…

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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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Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this help…

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