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Gas Line Trimmer

Model # 25A-258J766 Official Troybilt trimmer

Here are the diagrams and repair parts for Official Troybilt 25A-258J766 trimmer, as well as links to manuals and error code tables, if available.

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Browse Parts for25A-258J766 Line Trimmers

  • Lawn Tractor Screw, 1/4-20 X 5/8-in 710-1652
    #16

    22" string trimmer mower diagram

    Lawn tractor screw, 1/4-20 x 5/8-in

    Part #710-1652

    This item is not returnable
    $5.44
    16% OFF Phone Price : $6.44
    In Stock
  • Toro Lawn & Garden Equipment Hex Screw 710-3015
    #27

    22" string trimmer mower diagram

    Toro lawn & garden equipment hex screw

    Part #710-3015

    This item is not returnable
    $5.12
    16% OFF Phone Price : $6.12
    In Stock
  • Yard Machines Lawn & Garden Equipment Cupped Washer 736-0270
    #26

    22" string trimmer mower diagram

    Yard machines lawn & garden equipment cupped washer

    Part #736-0270

    This item is not returnable
    $5.10
    16% OFF Phone Price : $6.10
    In Stock
  • Ryobi Lawn & Garden Equipment Nut 712-0324
    #5

    22" string trimmer mower diagram

    Ryobi lawn & garden equipment nut

    Part #712-0324

    This item is not returnable
    $4.72
    17% OFF Phone Price : $5.72
    In Stock
  • V-belt 754-0625A
    #49

    22" string trimmer mower diagram

    V-belt

    Part #754-0625A

    Replaced by #954-0625A

    ?
    Manufacturer substitution
    This part replaces 754-0625A. Substitute parts can look different from the original.

    Get free shipping with Automatic Reorder

    $34.64
    15% OFF Phone Price : $40.64
    In Stock
  • Line Trimmer Spacer 750-1240
    #23

    22" string trimmer mower diagram

    Line trimmer spacer

    Part #750-1240

    This item is not returnable
    In Stock
  • Cable Clip 726-3055
    #52

    22" string trimmer mower diagram

    Cable clip

    Part #726-3055

    In Stock
  • Nut-hex Flange Lock 712-3005
    #28

    22" string trimmer mower diagram

    Nut-hex flange lock

    Part #712-3005

    In Stock
  • Bell Washer 736-0452
    #37

    22" string trimmer mower diagram

    Bell washer

    Part #736-0452

    In Stock
  • Line Trimmer Idler Spacer 750-1275
    #42

    22" string trimmer mower diagram

    Line trimmer idler spacer

    Part #750-1275

    In Stock

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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