See part B-23 in the diagram

Throttle Lockout 506495101

Works with your model 143RST!

$6.17

Works with your model 143RST!

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This part works with the following brands:

This part works with the following products:

Part# 506495101 replaces these:

5064951-01,

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This part works with the following models:

ERP Number: ERP8994330
Manufacturer Part Number: 506495101

Brand	Model Number	Description
Husqvarna	122R	Brush Cutter - 122r
Husqvarna	124R	Brush Cutter - Brushcutter
Husqvarna	128R	Brush Cutter - 128 R (Can. Only) (2010-03)
Husqvarna	129R	Brush Cutter - 129 R - 967193302 (Us/Can)
Husqvarna	143RS	Brush Cutter - 143rs
Husqvarna	143RST	Brush Cutter - 143rst
Husqvarna	236RS	Brush Cutter - 236rs
Husqvarna	243R	Brush Cutter - 243 R (20121000001-Current)
Husqvarna	325R	Brush Cutter - 325 R
Husqvarna	333RJ	Trimmer - Husqvarna String Trimmer Model 333RJ/2007-01 (333RJ/200701, 333RJ/2007 01) Parts
Husqvarna	333RX	Trimmer - Husqvarna String Trimmer Model 333RX Parts
Husqvarna	335LS	Trimmer - Husqvarna String Trimmer Model 335LS/2007-01 (335LS/200701, 335LS/2007 01) Parts
Husqvarna	335LX	Trimmer - Husqvarna String Trimmer Model 335LX/2007-01 (335LX/200701, 335LX/2007 01) Parts
Husqvarna	522HS75S	Trimmer - Pole Hedge Trimmer
Husqvarna	522HS75X	Hedge Trimmer - 522 Hs75 X
Husqvarna	522HSR75X	Hedge Trimmer - 522 Hsr75 X
Husqvarna	531RS	Brush Cutter - 531 Rs
Husqvarna	541RS	Brush Cutter - 541 Rs
Husqvarna	541RST	Brush Cutter - 541 Rst
Husqvarna	543RS	Brush Cutter - 543 Rs (20141800001-20192200000)