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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.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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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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ALL PARTS
Showing 10 of 223 parts  |
Spark Plug 15901010630
#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
Piston Pin 10001504630
#7

Crankcase/fan housing/cover diagram

Piston pin

Part #10001504630

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

Grip, Rear Handle 35121352130
#17

Drive shaft/handles/throttle diagram

Grip, rear handle

Part #35121352130

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

Collar 61031555330
#7

Optional pe gear housing diagram

Collar

Part #61031555330

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

Label 89016844830
#26

Gear housing/shield/tools diagram

Label

Part #89016844830

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

Carburetor 12520049030
Carburetor

Part #12520049030

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

Gasket Kit 88900042031

#NI02

All parts diagram

Gasket kit

Part #88900042031

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

Pin 900300-20022
#2

Optional pe gear housing diagram

Pin

Part #900300-20022

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

Brand Label 89011849130
#17

Starter/ignition/clutch/fuel system diagram

Brand label

Part #89011849130

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

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 …

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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

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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