Description
Product Overview
The IUVWISN 5‑hole derby cover gasket is crafted for Harley‑Davidson Evolution 1340 and Twin Cam engines produced between 1999 and 2016. Featuring a premium silicone bead, the gasket offers exceptional flexibility and resilience, maintaining a tight seal under high heat and vibration. Dimensions are 7.87 x 7.83 x 0.28 inches and it weighs only 1.44 ounces, making it lightweight yet robust. Designed to fit Dyna, Softail and Touring models, it replaces the original gasket with a direct‑fit solution that eliminates leaks and improves engine efficiency.
![[Product front view showing all components]](https://www.cleverbuy.store/wp-content/uploads/2026/05/5e38635e02874b4abc1edec92dbcc393.jpg)
Usage
This gasket is ideal for both routine maintenance and emergency repairs on Harley‑Davidson motorcycles. Whether cruising on the highway or tackling off‑road terrain, the silicone construction adapts to temperature fluctuations, preventing oil seepage and protecting the camshaft area. It is suited for owners who demand reliable performance from their bikes and for mechanics seeking a dependable replacement part.
Why Choose Us
IUVWISN combines years of engineering expertise with high‑grade materials to deliver a gasket that outlasts standard OEM parts. Each unit undergoes strict quality control, ensuring consistent thickness and bead integrity. Our customer support team provides prompt assistance, and a hassle‑free return policy gives buyers confidence in their purchase.
Key Features
- Premium silicone bead delivers a flexible, leak‑proof seal.
- Exact 5‑hole design fits Evolution 1340 and Twin Cam engines flawlessly.
- Lightweight construction reduces overall engine weight without sacrificing strength.
- Resists heat, oil, and vibration for long‑term durability.
- Dedicated customer support and easy return policy for peace of mind.
FAQ
Will this gasket fit my 2015 Softail?
Yes, the 5‑hole design is compatible with Softail models that use Evolution 1340 or Twin Cam engines from 1999‑2016.
Do I need special tools to install?
No special tools are required; the gasket installs with standard hand tools and a torque wrench for the cover bolts.
Is the silicone material safe for high‑temperature engine environments?
The silicone bead is formulated to withstand the high temperatures typical of Harley‑Davidson camshaft areas, maintaining elasticity and seal integrity.
What is the warranty period?
IUVWISN offers a one‑year limited warranty covering manufacturing defects.
Can I use this gasket on a custom‑built Harley?
As long as the engine uses a 5‑hole derby cover compatible with Evolution 1340 or Twin Cam specifications, the gasket will fit.





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