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Finned Headbolt Bridge

$74.95
Part Number: 43859-00
Color: Black
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This exclusive aluminum Finned Headbolt Bridge covers both headbolts and the spark plug, filling out your cylinder fins all the way to the rocker box.

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Description
Details
Rating Snapshot
5
71
4
9
3
6
2
1
1
2
Quality
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Exceeded
Showing 1-5 of 89
Reviews
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  • FEATURED REVIEW
    3/2/2025
    These should be standard
    Featured H-D Dealership H-D Employee Sweepstakes Entry - Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Quality
    Did Not Meet
    Exceeded
    The Headbolt Bridge looks amazing it gives the Engine a more finished look This is something that should come standard on all Harley’s
    • User review image
    Mike A - Goodlettsville Tennessee
  • FEATURED REVIEW
    2/16/2025
    Good add on trim
    Featured H-D Dealership H-D Employee Sweepstakes Entry - Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Quality
    Did Not Meet
    Exceeded
    Great idea in theory but the fit could be a bit better. It doesn’t line up great, but it fills the whole.
    Tren - Belle Isle, FL
  • FEATURED REVIEW
    1/18/2025
    Worthwhile addition!
    Featured H-D Dealership H-D Employee Sweepstakes Entry - Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Quality
    Did Not Meet
    Exceeded
    So easy! Takes a little dexterity! No problem even with my arthritis! Read the reviews to avoid little mistakes! You will notice every m’cycle that hasn’t done this yet! All pros! No cons! Makes a huge visual difference!
    • User review image
    Billnuke1 - Florida
  • FEATURED REVIEW
    1/5/2025
    They look great!
    Featured H-D Dealership H-D Employee Sweepstakes Entry - Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Quality
    Did Not Meet
    Exceeded
    Easy to install and cleans up the look of the engine nicely! Will put another set on my Ultra Classic.
  • FEATURED REVIEW
    7/16/2024
    BOTH SIDES CAN BE MONEY SHOTS!
    Featured H-D Dealership H-D Employee Sweepstakes Entry - Verified Purchaser Top 10 Contributor Top 25 Contributor Top 50 Contributor Top 100 Contributor Top 250 Contributor
    Quality
    Did Not Meet
    Exceeded
    These Finned Headbolt Bridges really complete the finned cylinder heads. This is to me a perfect way to complete the engine fins and one of the first upgrades I do to my Harleys! The crinkle black powder coat and polished fin edges exactly match the rest of the engine. I’ve installed these on several cycles and the only thing I can say negatively is that I don’t understand why the kit comes with 6 bridge bolt cover set screws when each of the 4 bolt covers is drilled and tapped for 2 set screws each? I’ve not had any that I installed come loose so 2 empty holes when done are “outa sight…outa mind”! read more.
    • 2017 Dyna Wide Glide
    DynaRob - Central PA
Showing 1-5 of 11
Q&A
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  • Question:
    9/14/2023
    Hi - will these fit a 2016 Road Glide Ultra 103? Details say yes, bike match says no....
    Makwas - Cape Town
    • Answer:
      Hi Makwas, This part is not an approved fitment for your 2016 Road Gllide Ultra.
      Southerngrl
      Helpful?
  • Question:
    8/20/2023
    Did Harley ever fix the improper thread size of the set screws as mentioned numerous times in the reviews?
    Mcasm5 - Pa
  • Question:
    6/4/2022
    will these fit 110 cub inch screaming eagle 2008
    Brad - IN
  • Question:
    2/8/2022
    will these fit the 120ci crate motor on my 2014 FXDC?
    BonezDaFiend - Michigan
  • Question:
    12/25/2021
    Can I easily change spark plugs with these covers installed ?
    Scrum - Berks county,PA.
    • Answer:
      Hello Scrum, Yes they are made for ease of removing the spark plugs in mind. Gigglesthehelper
      Gigglesthehelper
      Helpful?

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Finned Headbolt Bridge