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Model # SRM-2100SB TYPE 1 Official Echo trimmer/brushcutter
Here are the diagrams and repair parts for Official Echo SRM-2100SB TYPE 1 trimmer/brushcutter, as well as links to manuals and error code tables, if available.
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Browse Parts for
SRM-2100SB TYPE 1 Line Trimmers
#3
Starter/ignition/clutch/fuel system diagram
Spark plug
Part #15901010630
Replaced by #6703
?
Manufacturer substitution
This part replaces 15901010630. Substitute parts can look different from the original.
This item is not returnable
$5.29
In Stock
#42
Optional pe gear housing diagram
Collar 12
Part #30242452630
The manufacturer no longer makes this part, and there's no substitute part
#26
Drive shaft/handles/throttle diagram
Shaft, flexible (upper)
Part #61001355630
The manufacturer no longer makes this part, and there's no substitute part
Cap, hi speed limiter
Part #12532939030
The manufacturer no longer makes this part, and there's no substitute part
#5
Drive shaft/handles/throttle diagram
Throttle
Part #17800352130
The manufacturer no longer makes this part, and there's no substitute part
#26
Crankcase/fan housing/cover diagram
Bolt 5x25 (2)
Part #90014205025
The manufacturer no longer makes this part, and there's no substitute part
#8
Gear housing/shield/tools diagram
Circlip 10
Part #90070600010
The manufacturer no longer makes this part, and there's no substitute part
#24
Crankcase/fan housing/cover diagram
Model label
Part #89011256730
The manufacturer no longer makes this part, and there's no substitute part
#8
Optional pe gear housing diagram
Retaining ring 20
Part #10023855330
The manufacturer no longer makes this part, and there's no substitute part
#2
Gear housing/shield/tools diagram
Adapter plate
Part #61031347731
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.
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…
Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…
Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…
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.

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…
Repair difficulty
Time required
15 minutes or less

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 …
Repair difficulty
Time required
15 minutes or less

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…
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.

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

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

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