Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Dare to be bold. Dressed in luxurious chrome, this complete collection of engine covers raises the customization bar. Defined by sweeping curves and accented with deep longitudinal lines and a contemporary H-D logo, the Chrome Defiance Collection design imparts a feeling of forward motion to the bike’s profile.

• Chrome Finish

• Designed side-by-side with the Original Equipment components

• Add the complete collection, or start with one component and build your custom ride

Fits ’17-’20 Touring and Trike models. Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

The Harley‑Davidson Defiance Transmission Side Cover – Chrome is a premium engine trim accessory that elevates the look of your touring or trike motorcycle’s drivetrain with a bold, polished finish and distinctive design language. As part of the Defiance Chrome Collection — a coordinated suite of trim pieces developed by Harley‑Davidson — this transmission cover is engineered to work seamlessly alongside other matching Defiance components to create a striking, custom aesthetic that enhances your bike’s visual presence on the road. (Wisconsin Harley-Davidson)

Styling & Design
The standout feature of this transmission side cover is its luxurious chrome finish, which gives the transmission area a clean, high‑end shine that contrasts beautifully against darker engine elements and bodywork. Chrome has long been a hallmark of classic Harley‑Davidson style, and this cover brings that heritage look into a modern trim package. (Wisconsin Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063
The design is defined by sweeping curves and deep longitudinal lines that flow with the bike’s profile, creating a sense of motion even when the motorcycle is standing still. A contemporary H‑D® logo is subtly integrated into the styling, giving the cover a purposeful and refined appearance that’s unmistakably Harley‑Davidson. (Wisconsin Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Quality & Construction
Built to Harley‑Davidson’s exacting standards, this cover is designed side‑by‑side with original equipment components to ensure proper fitment, finish, and durability. The result is a trim piece that not only looks great but installs cleanly and integrates with the bike’s existing transmission housing without modification or compromise. (Wisconsin Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Customization & Coordination
The Defiance Chrome Transmission Side Cover is ideal for riders who want to build a coordinated trim theme around their motorcycle. It matches other Defiance Collection pieces — including upper rocker covers, derby covers, cam covers, and axle nut covers — allowing you to create a unified visual theme that’s both bold and upscale. Starting with this cover and adding other matching elements enables a personalized look that reflects your individual style. (Maidstone Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Fitment & Compatibility
This chrome transmission side cover is designed to fit ’17‑later Touring and Trike models equipped with the appropriate transmission configuration. Riders should confirm exact fitment for their specific year and model to ensure compatibility before purchase. (Wisconsin Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Installation & Use
Installation is straightforward for riders familiar with basic engine trim upgrades. The part replaces the stock transmission side cover and typically uses the existing mounting points, making it a relatively simple bolt‑on enhancement. Because this is a trim piece and not a functional component of the drivetrain, it does not affect performance, but it greatly enhances the appearance of the transmission area of your Harley‑Davidson. (Wisconsin Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063

Summary
Overall, the Defiance Transmission Side Cover – Chrome combines eye‑catching styling, solid OEM compatibility, and coordinated trim potential to give your motorcycle a more custom and refined look. It’s a great choice for riders who want to dress up the transmission area and create a cohesive appearance with other chrome or Defiance‑themed accessories. (Wisconsin Harley-Davidson) Harley-Davidson Defiance Transmission Side Cover – Chrome 25800063