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frontpageRokket | Staff posted May 03, 2026 06:59 AM
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  1. Deal Image
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Item 1 of 2
frontpageRokket | Staff posted May 03, 2026 06:59 AM

Kobalt 80V String Trimmer Bump Knob Assembly

+ Free Pickup

$3.00

$14

78% off
Lowe's
17 Comments
9,361 Views
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Deal Details
Lowe's has Kobalt 80V String Trimmer Bump Knob Assembly (2908503) on sale for $2.98. Select free store pickup where available, otherwise shipping is free on orders $35+ for MyLowe's Rewards Members (free to join).

Note: Availability for free pickup may vary by location.

Thanks Deal Hunter Rokket for finding this deal

Features:
  • 80V String trimmer bump knob replacement
  • Fits Kobalt 80V String Trimmers items 623432 and 620250

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • Our research indicates that this deal is $11 less (78.7% savings) than the next best available price from a reputable merchant with prices starting from $13.98 at the time of this post.
    • Valid for a limited time, while supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.

Original Post

Written by Rokket | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Lowe's has Kobalt 80V String Trimmer Bump Knob Assembly (2908503) on sale for $2.98. Select free store pickup where available, otherwise shipping is free on orders $35+ for MyLowe's Rewards Members (free to join).

Note: Availability for free pickup may vary by location.

Thanks Deal Hunter Rokket for finding this deal

Features:
  • 80V String trimmer bump knob replacement
  • Fits Kobalt 80V String Trimmers items 623432 and 620250

Editor's Notes

Written by Corwin | Staff
  • About this Deal:
    • Our research indicates that this deal is $11 less (78.7% savings) than the next best available price from a reputable merchant with prices starting from $13.98 at the time of this post.
    • Valid for a limited time, while supplies last.
    • Please see the original post for additional details and give the WIKI and forum comments a read for helpful discussion.

Original Post

Written by Rokket | Staff

Community Voting

Deal Score
+37
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Price Intelligence

Model: Kobalt Plastic/Metal String Trimmer Bump Knob Assembly | 2908503

Deal History 

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17 Comments

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May 03, 2026 01:09 PM
68 Posts
Joined Dec 2017
NiteStarXXMay 03, 2026 01:09 PM
68 Posts
Thanks OP. I'm not 100% sure if this will fit my Kobalt 80v trimmer as the model number is off, but the comments on Lowe's by others gives me hope that it will. For only $3, it's worth a shot.
May 03, 2026 01:49 PM
237 Posts
Joined Mar 2017
JasoNB2773May 03, 2026 01:49 PM
237 Posts
So it's just the knob and not the whole trimmer head?
Original Poster
Pro
Deal Hunter
May 03, 2026 03:32 PM
50,284 Posts
Joined Jun 2011
RokketMay 03, 2026 03:32 PM
Original Poster
Pro
Deal Hunter
50,284 Posts
Yes, this is a very random deal! Hoping it's helpful.
May 04, 2026 12:23 AM
277 Posts
Joined Nov 2013
xxBiohazrDxxMay 04, 2026 12:23 AM
277 Posts
Wondering if the complaints about it not fitting are for the previous generation of the 80v tool? Either way, I need a new one so I'll give it a go for $3
May 04, 2026 01:03 AM
272 Posts
Joined Apr 2016
bktj600May 04, 2026 01:03 AM
272 Posts
Anybody know if this would also fit the 80v greenworks trimmer?
May 04, 2026 01:03 AM
1,875 Posts
Joined Jul 2019
ditto33May 04, 2026 01:03 AM
1,875 Posts
This may fit greenworks trimmer 80v.
May 04, 2026 01:07 AM
2,489 Posts
Joined Jun 2010
scgt1May 04, 2026 01:07 AM
2,489 Posts
You can use it on the older 80V. Just have to cut one of the little tabs off and it will only line up one way with the other tab left in place.

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May 04, 2026 03:47 AM
223 Posts
Joined Nov 2016
kcf1117May 04, 2026 03:47 AM
223 Posts
I heard that this bump knob assembly sometimes breaks and needs to be replaced. It is not always in stock. If you have this trimmer, buy this spare part.
May 04, 2026 11:05 AM
1,039 Posts
Joined Nov 2010
kickstand1May 04, 2026 11:05 AM
1,039 Posts
thanks. was about to throw mine out!
Pro
May 04, 2026 11:42 AM
6,797 Posts
Joined Oct 2005
sleepybubba
Pro
May 04, 2026 11:42 AM
6,797 Posts
$4.98 for me. Big fail
Pro
May 04, 2026 11:44 AM
6,797 Posts
Joined Oct 2005
sleepybubba
Pro
May 04, 2026 11:44 AM
6,797 Posts
Quote from bktj600 :
Anybody know if this would also fit the 80v greenworks trimmer?
They ate the same trimmers, so I bet it would fit nicely. If only I could find it for $3
May 04, 2026 01:24 PM
185 Posts
Joined Jun 2013
PeterS2865May 04, 2026 01:24 PM
185 Posts
Wow I have this trimmer and this piece went missing one year ago. I could not find this part anywhere including eBay. I loved the trimmer so much I ended up just re-buying the same one. This post is one year too late.
May 07, 2026 03:35 PM
3 Posts
Joined Nov 2025
CoolSeed234May 07, 2026 03:35 PM
3 Posts
How did this get posted. So random.
May 09, 2026 02:15 PM
62 Posts
Joined Nov 2019
slicker66May 09, 2026 02:15 PM
62 Posts
Nice find

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Original Poster
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Deal Hunter
May 13, 2026 02:18 PM
50,284 Posts
Joined Jun 2011
RokketMay 13, 2026 02:18 PM
Original Poster
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Deal Hunter
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Still available.

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