This is an authentic OEM part for use in Troy-Bilt trimmers and goes inside the cutting head assembly. If this part becomes broken it will need to be replaced. A screwdriver may be needed when replacing this part. The bump knob is made of plastic and is available as an individual replacement part.
Troubleshooting
This part works with the following brands:
Troy-Bilt
MTD
This part works with the following products:
Trimmer
Part# 753-08157 replaces these:
753-08152, 753-08157,
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.
Easy
15 - 30 mins
(5 rated repairs)?
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Sorry, we couldn't find any existing installation instruction that matched.
The bump knob was so worn that it would not let the line out
I unscrewed the gearbox and installed the new gearbox to the drive shaft. I needed the cutting head assembly just screws onto the shaft from the gear box. The bump head snaps onto the housing, but I ordered one just to have a spare.
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Line not coming or too much coming, line not cutting, tune up
Remove the bottom cap of the cutterhead remove the old bump head and snap on the cover.
Replace the blade assembly with the screws and nuts. Remove the old spark plug and install the new one.
1. Remove screws from bottom casing.
2. Remove 2 upper cover screws.
3. Remove screw on oil fill plug.
4. Pull out and replace fill plug.
5. Replace all screws.
Easy!
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Model Cross Reference
This part works with the following models:
ERP Number: ERP19283987
Manufacturer Part Number: 753-08157
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.
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Mail-In Recycling Rebate
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.
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