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Troy-Bilt TB70SS (41ADT70C966) Gas Trimmer Parts

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Fig #	Part #	Img	Part Name	Availability	Price	Qty
A41	753-04367		Piston and Rod Assembly	In stock 25+ available	$35.94
A1	753-04234		Throttle Housing & Trigger Assembly	In stock 11 available	$10.48
A2	753-04119		Throttle Trigger	In stock 25+ available	$3.75
A3	791-182690		Throttle Trigger Spring	In stock 20 available	$3.85
A4	791-182405		Switch	In stock 25+ available	$5.26
A5	746-04085A		Throttle Cable Assembly	In stock 13 available	$5.34
A6	753-04344		Upper Drive Shaft and Housing Assembly (Shaft is 25-1/8")	In stock 25+ available	$45.62
A7	791-180869		Loop Handle Assembly	In stock 1 available	$42.05
A8	791-181070		Screw	Ships in 5 - 9 business days	$2.26
A9	791-182167		Deluxe D-Handle	Ships in 5 - 9 business days	$43.86
A10	791-182168		Bottom Clamp	Ships in 5 - 9 business days	$7.87
A11	753-1190		Split Boom Coupler	In stock 8 available	$11.14
A12	791-182057		Screw	In stock 20 available	$2.26
A13	791-181617		Bolt	In stock 6 available	$2.64
A14	791-181981		Knob Assembly	In stock 25+ available	$5.69
Fig #	Part #	Img	Part Name	Availability	Price
A15	712-04018A		Knob Retaining Nut	Ships in 5 - 9 business days	$2.18
A16	753-04089		Boom Outer Housing 24" (Cable Sold Separatley)	Ships in 5 - 9 business days	$32.02
A17	753-05182		Lower Flexible Drive Shaft	In stock 5 available	$16.07
A18	791-145569		Anti-Rotation Screw	In stock 25 available	$5.17
A19	753-05183		Gear Box Assembly (Includes 23-27)	In stock 12 available	$31.96
A20	791-180547		Guard Mounting Screw Assembly	Ships in 5 - 9 business days	$5.67
A21	791-180548		Guard and Blade Assembly	In stock 25+ available	$19.66
A22	791-682061		Blade Assembly	In stock 25+ available	$8.09
A23	791-153619		Outer Spool Assembly w/ Retainer	In stock 25+ available	$17.09
A24	791-610660		Retainer	In stock 25+ available	$2.46
A25	791-610317B		Spring	In stock 25+ available	$5.43
A26	753-1155		Inner Reel	In stock 25+ available	$13.95
A27	791-153066B		Bump Head Knob Assembly	In stock 25+ available	$9.69
A	791-180120		Replacement Line, 0.095 Diameter Obsolete - Not Available	Discontinued	$0.00	N/A
A	953-1156		Reel & Line Assembly	Ships in 5 - 9 business days	$20.45
Fig #	Part #	Img	Part Name	Availability	Price

Trimmer Parts

Discuss

Repair Videos

Articles

Popular Parts

Primer and Hose Assembly $12.83	Fuel Return Line $3.81
Air Cleaner Filter $5.39	Throttle Trigger $3.75
Spark Plug $7.30	Upper Drive Shaft and Housing Assembly (Shaft is 25-1/8") $45.62
Bump Head Knob Assembly $9.69	Carburetor Gasket $2.24

Repair Videos

How to Replace the Starter Assembly on a Gas Trimmer

How to Replace a Primer Bulb

How to Replace Trimmer Fuel Lines

Repair Videos

How to Replace Trimmer Line	How to Remove a Trimmer Clutch
How to Winterize Power Tools and Machines

Repair Articles

How to Replace a Primer Bulb Replacing primer bulbs in small engines is one of the most common types of tool repairs, and this article explains professional steps for primer bulb replacement in two engine design types.	How to Replace the Starter Assembly on a Gas Trimmer These repair steps make it easy to replace the starter assembly on most kinds of 2-cycle trimmers, saving tool owners time and money on tool repairs.
How to Replace Trimmer Fuel Lines Grass trimmers commonly need their fuel lines and other system comenents replaced, and this article offers professional repair advice for performing a trimmer fuel line replacement.	How to Replace Trimmer Line Become a line reloading expert with this article's steps for replacing line in three different trimmer head types: single line, double line, and Speed-Feed heads.

Discussion

Discussion for the Troy-Bilt TB70SS (41ADT70C966) Gas Trimmer

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Question: String Trimmer Attachment Slippi...

cbrown013

Hi All,

I have a Troy-bilt TB70SS string-trimmer. The problem I am having is that quite often the attachment fails to spin up when I squeeze the trigger.

When I squeeze the trigger I hear the engine rev up and expect the various attachments to start working. Sometimes they do but more often than not they don't.

I've been able to replicate with multiple attachments so I don't think it has anything to do with the attachments themselves.

Any suggestions?

Thanks in advance!

Reply: String Trimmer Attachment Slippi...

bec98x

check to make sure the power head is all the way on. If it is not sometimes the drive shaft is not engaged to the clutch drum. Also check that the connecting mechanism is also seated all the way on the tube.

Question: Troy Bilt TB70SS Gas Trimmer

mrclean53

I have had my trimmer 4 yrs. and it usually works good.But this year it starts up and dies immediately-will not idle.And if it starts and I accelerate it dies.I sprayed carb cleaner in it 2 times overnite and no help.I noticed the primer bulb doesn't fill with gas as i prime it like it used to.Is the primer bulb the culprit? Or could the idle need adjusting?Any advice would be greatly appreciated. Thanks, Bob

Reply: Troy Bilt TB70SS Gas Trimmer

Shrxfn

I just had this problem and I replaced the primer bulb it had a hairline crack in it. One other way to tell is if the primer bulb fills half way before starting and then you have to refill it once it dies as it sucks all of the gas out of it. Once I fixed this I found out that my fuel line is also suspect but I am unable to find just the fuel line. This was just my experience. BTW the primer bulbs can be found at Lowes. Fuel lines nowhere to be found yet. I am on hold with Troy Bilt techsupport to see if I can just get the fuel line.