HTTMT Chrome Bolt Toppers for Harley Dyna Twin Cam 1991–2013 — 76-Piece ABS Covers, Push-On Fit

These HTTMT MT247-003-CD chrome bolt toppers are a 76-piece ABS plastic trim kit designed to conceal and upgrade the look of engine, primary and transmission bolts on 1991–2013 Harley-Davidson Dyna Twin Cam models.

If you want a clean, factory-finished appearance without replacing hardware, this complete bolt cover set provides a fast cosmetic upgrade. The kit includes all the caps needed to cover exposed bolts across the motor, primary and transmission areas. Made from durable ABS plastic and available in the chrome finish shown, the pieces slip over stock bolt heads and are secured with a small bead of silicone during installation.

Will these bolt caps fit my 1991–2013 Harley Dyna Twin Cam?

Yes — the MT247-003-CD kit is specified for Harley-Davidson Dyna models with Twin Cam engines produced between 1991 and 2013. It is an aftermarket accessory made to match the common bolt sizes and locations found on those bikes.

• Fitment: Harley Dyna Twin Cam 1991–2013
• Complete set: 76 pieces to cover motor, primary, transmission and more
• Aftermarket, 100% new components

How are these bolt covers installed and secured?

Installation is straightforward: each cover slips over the existing bolt head. For a secure, long-lasting hold, place a few drops of silicone adhesive on the cover stem before pressing it into place. No special tools are required, but silicone is recommended to prevent movement.

• Install method: push-on with silicone at stem
• Tools required: typically none—cleaning cloth and silicone recommended
• Instructions: not included, but installation is simple and reversible

What are these caps made from and how durable are they?

The caps are molded from ABS plastic, chosen for its balance of toughness and resistance to weathering. While not metal, properly installed ABS covers resist road debris and fading; they provide a chrome-look surface that enhances appearance without adding weight.

• Material: ABS plastic for impact and UV resistance
• Finish: chrome-look as pictured (also available in black depending on listing)
• Durability: designed for exterior use on motorcycle components

What does the kit include and what should I expect in the package?

The package contains 76 individual bolt covers intended to outfit the motor, primary, transmission and other visible fasteners on the bike. Because this is an aftermarket set, small variations in fit can occur; verify bolt sizes before installing to ensure full coverage.

• Pieces: 76 covers to complete the visible bolt coverage
• Condition: new aftermarket parts, color matches product images
• Note: no printed instructions included in the box

Who is this kit for? Riders and restorers who want a tidy, unified look for their Harley Dyna without replacing original bolts will appreciate this cost-effective cosmetic upgrade. It's ideal for owners preparing a bike for shows, resale, or everyday riding who prefer the glossy chrome appearance without heavy modification. If you prefer a metal replacement or need guaranteed exact OEM sizing, consider professional fit checking before purchase. For straightforward aesthetic enhancement that installs quickly and is reversible, this HTTMT bolt topper set is a practical choice.