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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
Housing Assembly 61040247731
#1

Gear housing/shield/tools diagram

Housing assembly

Part #61040247731

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

Line Trimmer Fuel Tank 13100546830
#29

Starter/ignition/clutch/fuel system diagram

Line trimmer fuel tank

Part #13100546830

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

Throttle Valve 12531649030
Throttle valve

Part #12531649030

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

Cover, Metering Diaphragm 12534213210
Cover, metering diaphragm

Part #12534213210

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

Screw 90023805016
Screw

Part #90023805016

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

Wrench, W/screwdriver 89541008030
Wrench, w/screwdriver

Part #89541008030

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

Screw 5x10 90024205010
#12

Gear housing/shield/tools diagram

Screw 5x10

Part #90024205010

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

Spark Plug Cap 15901201620
#1

Starter/ignition/clutch/fuel system diagram

Spark plug cap

Part #15901201620

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

Lawn & Garden Equipment Nut 90050200006
#37

Drive shaft/handles/throttle diagram

Lawn & garden equipment nut

Part #90050200006

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 …

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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

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

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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