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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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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
Lock Nut 35232527630
#28

Drive shaft/handles/throttle diagram

Lock nut

Part #35232527630

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

Spacer, Piston Pin (2) 10001411520
#8

Crankcase/fan housing/cover diagram

Spacer, piston pin (2)

Part #10001411520

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

Line Trimmer Fuel Cap 13100455830
#32

Starter/ignition/clutch/fuel system diagram

Line trimmer fuel cap

Part #13100455830

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

Shaft, Flexible (lower) 61001356730
Shaft, flexible (lower)

Part #61001356730

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

Bearing, Ball (2) 90081036201
#14

Crankcase/fan housing/cover diagram

Bearing, ball (2)

Part #90081036201

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

Adapter Plate 61031347731
#2

Gear housing/shield/tools diagram

Adapter plate

Part #61031347731

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

Model Label 89011256730
#24

Crankcase/fan housing/cover diagram

Model label

Part #89011256730

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

Lead 16202152130
#20

Starter/ignition/clutch/fuel system diagram

Lead

Part #16202152130

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

Throttle 17800352130
#5

Drive shaft/handles/throttle diagram

Throttle

Part #17800352130

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

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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