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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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Browse Parts forSRM-2100SB Line Trimmers

  • 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
    In Stock
  • Gasket 14586642031
    Gasket

    Part #14586642031

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

  • Ignition Coil 15662609660
    #21A

    Starter/ignition/clutch/fuel system diagram

    Ignition coil

    Part #15662609660

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

  • Circlip 28 90070200028
    #18

    Crankcase/fan housing/cover diagram

    Circlip 28

    Part #90070200028

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

  • Shim Washer (2) 61023904130
    #20

    Gear housing/shield/tools diagram

    Shim washer (2)

    Part #61023904130

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

  • Lawn & Garden Equipment Bolt 90016205022
    Lawn & garden equipment bolt

    Part #90016205022

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

  • Coil Spring 15901103432
    #2

    Starter/ignition/clutch/fuel system diagram

    Coil spring

    Part #15901103432

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

  • Pin 2x22 (w/pouch) 89850201130
    #26

    Optional pe gear housing diagram

    Pin 2x22 (w/pouch)

    Part #89850201130

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

  • Ignition Switch 16340155630
    #4

    Drive shaft/handles/throttle diagram

    Ignition switch

    Part #16340155630

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

  • Caution Label 89016052630
    #35

    Optional pe gear housing diagram

    Caution label

    Part #89016052630

    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, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

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

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

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

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

Effective articles & videos to help repair your line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Line trimmer: Preventing fuel vapor lock in hot summer conditions

Vapor lock can stop your trimmer cold in summer heat. Learn how to prevent it and keep your lawn looking sharp…

Straight shaft vs curved shaft trimmers: What’s the difference?

Straight shaft vs curved shaft trimmers: What’s the difference?

Trying to decide between a straight shaft and curved shaft trimmer? This guide compares both designs to help you underst…

Can you cut grass with a weed whacker?

Can you cut grass with a weed whacker?

Wondering if your weed whacker can pick up the slack for your broken lawn mower? You're not alone. In this guide, we bre…

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