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TB25ET (41BDT2EC063) Troy-Bilt Trimmer - Overview

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Primer and Hose Assembly – Part Number: 791-683974B
$35.70
In Stock
Primer and Hose Assembly
Part #791-683974B
This manufacturer-certified primer and hose assembly includes the primer bulb, the primer bulb housing, and the fuel line. Any or all of the clear plastic parts in this assembly may experience wear and tear over time that cause fuel to leak due to cracking or blockages. If they are not functioning, these parts will fail in their function of supplying fuel from the tank to the carburetor. This is an easy repair, which can be made by identifying the location of the parts, between the fuel tank and the carburetor, and reinstalling them with no special tools required. When installing, make sure the fuel lines are tight to prevent leaks and fire hazards.
Line, Fuel Return – Part Number: 791-181086
$11.11
In Stock
Line, Fuel Return
★★★★★
★★★★★
(2)
Part #791-181086
The OEM fuel return line, or fuel return tube, is a clear plastic line that returns fuel from the primer bulb back into the fuel tank of your engine. You will know your fuel return line is in need of replacement if cracks or leaks have begun appearing, and fuel is leaking from your carburetor. This part is sold individually, and you will know if it is right for your engine by checking your model number or owners manual. One end of the line will attach to the primer bulb, and the other to the fuel tank; make sure all fuel lines are tight when completing this repair, to prevent leaks and fire hazard risks. Most customers rated this repair as easy.
Line Trimmer Bump Feed Knob – Part Number: 791-181468B
No Longer Available
Line Trimmer Bump Feed Knob
★★★★★
★★★★★
(3)
Part #791-181468B
This OEM bump head knob assembly, known simply as the bump head assembly sometimes, advances the line on your trimmer in the spool. Black in color, it is made of plastic and steel and is sold individually. Tap your trimmer on the ground to see if the cutting line advances to determine if there is a problem with this part. If it will no longer feed, it is likely that this part needs to be replaced. Most of our customers rated this repair as easy. You can attach your new part to the cutting head with no special tools required to complete the repair.
Clutch Asm Small – Part Number: 753-05860
$36.65
In Stock
Clutch Asm Small
★★★★★
★★★★★
(2)
Part #753-05860
This clutch assembly is a genuine OEM replacement kit for outdoor lawn equipment. The kit includes the clutch drum, clutch, clutch washer, and screw. The clutch assembly transfers power from the engine to the cutting attachment which allows you to operate the equipment. Over time, the clutch assembly may malfunction due to normal wear and tear or accidental damage. If the small clutch assembly fails, the engine will likely stall, and the cutting attachment will not be able to engage. To remove the clutch assembly, first bind the piston to prevent it from rotating. You can do this by removing the spark plug and inserting a length of rope into the cylinder with a few inches remaining outside. Remove the clutch cover and use a clutch removal tool to remove the nut that secures the assembly. Pull the old assembly from the crankshaft and position the new assembly in its place, ensuring it is securely fitted.
Throttle Trigger – Part Number: 753-04119
$11.75
On Order
Throttle Trigger
Part #753-04119
This plastic throttle trigger measures 2.5-inches in length and controls the power, speed, and intensity of the motor for your lawn equipment through the throttle cable and carburetor it is attached to. Sold as an individual part without any securing hardware, this trigger, although made of durable plastic, is a high-use part that will need to be replaced more often than other parts. Check the user manual for your model for exact placement and installation location of this trigger.
Asm:reel/.080 Lin – Part Number: 791-181460B
$42.60
In Stock
Asm:reel/.080 Lin
Part #791-181460B
This is a genuine OEM replacement part, it is sold individually. The propose of the Reel and Line Assembly is to dispense the cutting line for the trimmer models below. This is a dual line trimmer. The diameter of the line used in this reel is 0.080
Trimmer Switch – Part Number: 791-182405
$15.68
In Stock
Trimmer Switch
Part #791-182405
This Switch is a black, plastic on/off switch for a trimmer. Installation of this manufacturer-certified switch is rated as "Easy" and requires a screwdriver, wrench set and socket set. Refer to your make, model, and diagrams to ensure this switch is correct for you.
Small Spring – Part Number: 791-181459
No Longer Available
Small Spring
Part #791-181459
Genuine OEM replacement part, this item is sold individually. The 791-181459 Spring is installed in the 753-04257 slider. When not activated this part will keep the cutting line from coming out of the spool. When the Bump Head Knob Assembly is hit on the ground the springs and slider will be forced up into the spool housing releasing the correct amount of cutting line. Most of the trimmers will use two of these springs.
Spark Plug – Part Number: 791-610311B
$20.32
In Stock
Spark Plug
Part #791-610311B
This Spark Plug is inserted into the cylinder head and is rated as "Easy" to install. The spark plug ignites the air fuel mixture inside the combustion chamber. If the part doesn't work, or is missing then the engine will not start and the spark plug must be replaced. This part should also be replaced annually as a part of proper engine maintenance. Tip: Gap to manufacturer's specs before installing.
Filter, Air Cleane – Part Number: 791-180350B
$14.19
Special Order
Filter, Air Cleane
Part #791-180350B
The manufacturer-certified Air Cleaner Filter is a grey foam filter used to prevent debris and dirt from entering the carburetor and engine, causing damage. Installation is rated as "Easy". This filter may become clogged and cause the engine to run rough due the restricted air flow, at which time the filter should be replaced. This filter is placed inside the air cleaner housing.
Screw, 8-32 X .312 P – Part Number: 791-182519
$7.83
In Stock
Screw, 8-32 X .312 P
Part #791-182519
This is a genuine anti-rotation screw from the Ryobi manufacturer. The metal screw is compatible with many lawn and garden trimmers. This item works to help secure the clutch cover assembly. This part is sold individually. A screwdriver is needed in making the repair.
Blade Retaining Kit (includes 34 & 42) – Part Number: 791-180014B
$17.28
In Stock
Blade Retaining Kit (includes 34 & 42)
Part #791-180014B
This is a genuine replacement part manufactured for use with trimmers. The kit includes the metal retaining washer which is used with the blade, and spool cutting heads. The kit also includes the nut that fastens the blade to the gearcase, the kit is sold individually.

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Need A Carburetor Troy Bolt Trimmer Edger Tb25et - For model number TB25ET
April 8, 2023
I need a carburetor
Chris Boyle Profile
Hello, Thank you for your inquiry. For most versions of this model, the part number for the carburetor is part# PS10009133, but there is one version with a spec number of 41ADT2EC063 that uses part# PS10009837. We hope this helps.
$118.17
Special Order
Carburetor Assembly (includes 7 & 18)
$95.18
Special Order
Carburetor Assembly
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Lost the retainer for my brush cutter on my Troy-bilt brush cutter
1 person found this instruction helpful.
  • Steven from LOUISVILLE, KY
  • Very Easy
  • Less than 15 mins
  • Socket set
Parts fit perfectly. Removed the string trimmer and installed the brush blade. Tightened with an 11mm socket and went to work.
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