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Echo
Gas Line Trimmer

Model # SRM-2100SB Official Echo trimmer/brushcutter

Here are the diagrams and repair parts for Official Echo SRM-2100SB trimmer/brushcutter, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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

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Model diagram and schematic

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Showing 10 of 223 parts  |
Spark Plug 15901010630
#3

Starter/ignition/clutch/fuel system diagram

Spark plug

Part #15901010630

Replaced by #6703

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Manufacturer substitution
This part replaces 15901010630. Substitute parts can look different from the original.
This item is not returnable
$5.29
In Stock
Screw 4 X 16 (2) 90008000300
#48

Optional pe gear housing diagram

Screw 4 x 16 (2)

Part #90008000300

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

Shaft, P.t.o. 61031055330
#10

Optional pe gear housing diagram

Shaft, p.t.o.

Part #61031055330

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

Wheel Bracket 30202955330
#40

Optional pe gear housing diagram

Wheel bracket

Part #30202955330

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

Needle, Hi Speed 12532013310
#17

Carburetor diagram

Needle, hi speed

Part #12532013310

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

Screw 5x35 90024205035
Screw 5x35

Part #90024205035

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

Housing Assembly D. Shaft (upper)(includs Items 23 & 24) 61020656730
#22

Drive shaft/handles/throttle diagram

Housing assembly d. shaft (upper)(includs items 23 & 24)

Part #61020656730

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

Starter Assembly 17720054130
#8

Starter/ignition/clutch/fuel system diagram

Starter assembly

Part #17720054130

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

Circlip 32 90070200032
#5

Gear housing/shield/tools diagram

Circlip 32

Part #90070200032

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

Line Trimmer Air Filter Cover 13031306563
#6

Intake/exhaust/air filter diagram

Line trimmer air filter cover

Part #13031306563

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…

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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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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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