- This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
- New stock is on the way! On order parts usually ship within 7 business days.
- Item is not in stock and usually ships 10-15 business days from the time you place your order.
- This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
Throttle Lock 503854401
- Manufactured by:
- Husqvarna
- ERP Number:
- ERP8990814
- Part Number:
- 503854401
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- Husqvarna
- Chainsaw
Customer Part Reviews
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Customer Repair Instructions
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
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Trigger was broke.
Jonathan from Middletown , Ohio
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Pliers, Screw drivers
Cleaned out the broken pieces of trigger.(most of it was where the pin holds the trigger in place)
Reassembled the new trigger with the new lock and spring.
I used the old pin.
I tried to keep all the old parts connected to see how they went together.
All parts of trigger were missing.
Kurt from Woodburn, Oregon
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
Throttle lock was broken in half
Charles from Syracuse, New York
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
- Parts Used:
- 503854401
Broken trigger and throttle lock on chainsaw
Gene from Rustburg, Virginia
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers
Replaced the broken trigger and the spring and the throttle lock.
Installed the missing screw.
Installed the new decals.
Throttle lock broke off.
RONALD from PUEBLO, Colorado
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Model Cross Reference
Manufacturer Part Number: 503854401
| Brand | Model Number | Description |
|---|---|---|
| Husqvarna | 253RB | Brush Cutter - 253 Rb (20101000001-20182200000) |
| Husqvarna | 340 | Chainsaw - 340 (20051800001-20062300000) |
| Husqvarna | 340E | Chainsaw - 340 E (20051800001-20062300000) |
| Husqvarna | 340EPA | Chainsaw - Chainsaw |
| Husqvarna | 345 | Chainsaw - 345, 19993600001-20013500000 |
| Husqvarna | 345E | Chainsaw - 345 E Triobrake, 20083600001-Current |
| Husqvarna | 345EPA | Chainsaw - Chainsaw |
| Husqvarna | 345ETRIOBRAKE | Chainsaw - Chain Saw |
| Husqvarna | 346 | Chainsaw - Chainsaw |
| Husqvarna | 346XP | Chainsaw - Chainsaw |
| Husqvarna | 346XPEPA | Chainsaw - Husqvarna Chainsaw Model 346XPEPA Parts |
| Husqvarna | 346XPTRIOBRAKE | Chainsaw - Husqvarna Chainsaw Model 346XPTRIOBRAKE/2008-09 (346XPTRIOBRAKE/200809, 346XPTRIOBRAKE/2008 09) Parts |
| Husqvarna | 350 | Chainsaw - Chainsaw |
| Husqvarna | 350EPA | Chainsaw - Chainsaw |
| Husqvarna | 351 | Chainsaw - Chainsaw |
| Husqvarna | 351EPA | Chainsaw - Chainsaw |
| Husqvarna | 353 | Chainsaw - Chainsaw |
| Husqvarna | 353-353G | Chainsaw - 353 / 353g / 353e-Tech / 353g E-Tech |
| Husqvarna | 353EPA | Chainsaw - Chainsaw |
| Husqvarna | 353EPAI | Chainsaw - Husqvarna Chainsaw Model 353EPAI Parts |
| Husqvarna | 353TRIOBRAKE | Chainsaw - Chain Saw |
| Husqvarna | 357 | Chainsaw - Chainsaw |
| Husqvarna | 357EPA | Chainsaw - Chainsaw |
| Husqvarna | 357XP | Chainsaw - Chainsaw |
| Husqvarna | 357XPEPA | Chainsaw - Chainsaw |
| Husqvarna | 357XPEPAI | Chainsaw - Chainsaw |
| Husqvarna | 359 | Chainsaw - Chainsaw |
| Husqvarna | 359EPA | Chainsaw - Chainsaw |
Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.