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HDBUBALUS Motorcycle Head Bolt Cover Spark Plug Cap Fit for Harley Twin Cam Dyna Big Twin Evolution 1340 Sportster XL 1999-2017 4PCS

  • Based on 19 reviews
Condition: New
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Availability: In Stock.
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Arrives Wednesday, May 13
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Features

  • Fitment:Fits for Harley all Twin Cam models 1999-Later, Big Twin 1340 Evo Models 1985-1999, All Sportster 1986-Later
  • Engine Dress Up:These Motorcycle Head Bolt Covers add a clean custom accent around the cylinder head area and help improve the overall look of your engine. Installed near the spark plug area, they work as decorative Spark Plug Caps that make exposed hardware look more refined on daily riders, custom builds, and touring motorcycles.
  • Protective Design:These Head Bolt Covers help cover exposed head bolt and nut areas from dust, moisture, and road grime during regular riding. As a practical Head Bolt Screw Cover upgrade, they also help give the engine a more finished appearance while reducing the exposed look of factory hardware.
  • Material:Made of aluminum with a precision-machined finish, these covers are built for dependable fit and a neat custom look. The metal construction supports long-term use in different riding conditions and gives these Motorcycle Head Bolt Covers a solid feel that matches the style of classic and modern Harley models.
  • Package includes 4*Head Bolt Nut Covers

Features

  • Material:Aluminum,Used for the head bolts on spark plugs
  • Color: Anodized Black
  • Fitment:Fits for Harley all Twin Cam models 1999-Later, Big Twin 1340 Evo Models 1985-1999, All Sportster 1986-Later
  • Outside Diameter: 28mm (1 1/8"), Inside Diameter: 15mm (9/16")
  • Package includes 4*Head Bolt Nut Covers

Description

Motorcycle Head Bolts Covers Case Aluminum 4pcs Black/Chrome for Harley Sportster Models 1986-Later All Twin Cam models 1999-Up Description: Conditon: Aftermarket 100% Brand New. Outside Diameter: 28mm (1 1/8"), Inside Diameter: 15mm (9/16") No installation instruction and installation remove easily. The package includes 4x high quality Head Bolt/Nut Covers. Fitment: Fit for Harley all Twin Cam models 1999-Later Fit for all Big Twin 1340 Evo models 1985-1999 Fit for all Sportster models 1986-Later Note:Please check and confirm this product if it fits yours before buying. Thank you!


Manufacturer: ‎HDBUBALUS


Brand: ‎HDBUBALUS


Item Weight: ‎2.39 ounces


Package Dimensions: ‎4.3 x 3.3 x 1.2 inches


Item model number: ‎REUSCR009505


Exterior: ‎Chrome


Manufacturer Part Number: ‎REUSCR009505


Date First Available: November 7, 2017


Manufacturer: ‎HDBUBALUS


Brand: ‎HDBUBALUS


Model: ‎Motorcycle Head Bolt Cover


Item Weight: ‎2.39 ounces


Package Dimensions: ‎4.3 x 3.3 x 1.2 inches


Item model number: ‎REUSCR009505


Exterior: ‎Chrome


Manufacturer Part Number: ‎REUSCR009505


Date First Available: November 7, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 13

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • H
Satisfied
Reviewed in the United States on November 12, 2025 by Maryland Spaulding

  • Inexpensive dress up
Inexpensive dress up , fit my Harley with no issue and look great installed - use loctite!
Reviewed in the United States on January 14, 2024 by Eddie

  • You will replace them
2 out of 4 truned brown . So until I find something better.
Reviewed in the United States on July 23, 2023 by David m.

  • These look great on my Harley but..
They looked great for the first 3 weeks. Then the heat on the rear cylinder turned the rear cover to mud brown..
Reviewed in the United States on July 5, 2022 by Drdamewood

  • Looks cool but!
The bolt cover on the exhaust side turned to purple in less than 25miles…..😔
Reviewed in the United States on August 8, 2025 by P jake

  • Collar faded
Collar faded
Reviewed in the United States on June 5, 2025 by Jamie

  • Head bolt covers
Turned brown after 200 miles on bike
Reviewed in the United States on January 18, 2024 by Amazon Customer

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