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Product Description
?This is an authentic OEM sourced component which is designed for use with Toro handheld string trimmers. It is a high-quality replacement for a missing or a faulty bump knob that helps to retrieve the line. Please make sure to refer to the owners manual and the appropriate diagrams of your model for the correct application of this part. Keep in mind this high-quality bump knob is made of durable plastic and is sold individually. Replacing it is a simple task that does not require any tools, simply remove the old and secure the new.
Troubleshooting
- Toro
- Homelite
- Ryobi
- Trimmer
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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Bump knob worn down
Dennis from Cape Coral, Florida
Bump knob was worn and the string head housing was worn as well.
Cheryl from New Orleans, Louisiana
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Parts Used:
- 518803003
Missing cap/bummer knob
Elisha from EDGEWATER, Florida
Wore out bump knob on weedeater
Adam from rockledge, Florida
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Pliers
- Parts Used:
- 518803003
Bumper knob had worn down
James from Cleveland, Ohio
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 518803003
The surface of the knob-bump was worn out so I replaced it with a new one.
David from Miami, Florida
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers
- Parts Used:
- 518803003
2. Removed the dual string spool.
3. Removed the string from the spool.
4. Removed the old knob-bump.
5. Installed the new knob-bump.
6. Installed the spool in the housing and replaced the spool cap.
7. Installed the string onto the spool and wound it on.
... Read more >8. Tested the unit. It worked like brand new.
Just wore it out.
James from Birmingham, Alabama
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 518803003
Bump knob wore down.
irwin from new city, New York
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Tools:
- Screw drivers
- Parts Used:
- 518803003
Bump knob was broken
Chuck from Chaska, Minnesota
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 518803003
Bump cap wore out
Paul from AUBURNDALE, Florida
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 518803003
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Model Cross Reference
Manufacturer Part Number: 518803003
| Brand | Model Number | Description |
|---|---|---|
| Toro | 51954 | Trimmer - 17" Curved Shaft Gas Trimmer |
| Toro | 51955 | Trimmer - String Trimmer |
| Toro | 51956 | Trimmer - Toro String Trimmer Model 51956 Parts |
| Toro | 51957 | Trimmer - Toro String Trimmer Model 51957 Parts |
| Toro | 51958 | Trimmer - Toro String Trimmer Model 51958 Parts |
| Toro | 51958VNM | Trimmer - 51958vnm 17 In. Gas Trimmer - Curved Shaft S/N 320000001 & Up Mfg. No. 090309052 |
| Toro | 51974 | Trimmer - String Trimmer |
| Toro | 51975 | Trimmer - Toro String Trimmer Model 51975 Parts |
| Toro | 51976 | Trimmer - Toro String Trimmer Model 51976 Parts |
| Toro | 51977 | Trimmer - 18 Inch Straight Shaft String Trimmer |
| Toro | 51978 | Trimmer - Toro String Trimmer Model 51978 Parts |
| Toro | 51978A | Trimmer - 18in Straight-Shaft Gas Trimmer |
| Toro | 51978VNM | Trimmer - 51978vnm 18 In. Gas Trimmer - Straight Shaft S/N 319000001 & Up Mfg. No. 095309106 7-16-21 (Rev:03) |
| Toro | 51998 | Trimmer - Toro String Trimmer Model 51998/Serial: 315000001-315999999/2015 (51998/Serial:315000001315999999/2015, 51998/Serial: 315000001 315999999/2015) Parts |
| Homelite | BM25TEC | Trimmer - Bm25tec String Trimmer Mfg. No. 090309033 1-25-19 (Rev:01) |
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.