S&S CYCLE Oil Filter — Chrome, 31-4102 – 84-98 Touring, 85-99 Softail, 91-99 Dyna, 85-86 Big Twin, 85-94 FXR, 86-22 Sportster

🛠️ Upgrade your engine's protection with a high-performance replacement that balances fine filtration and ease of service.

• Sturdy steel canister houses premium filtering media and internal components.
• Canister is slightly smaller in diameter than stock filters to make removal and installation easier.
• Direct bypass valve routes bypass oil to the filter exit, minimizing contaminants carried to the engine.
• The nominal particle capture size is finer than stock while resistance to oil flow remains nearly the same.
• Includes drain plug O-ring for clean, simple oil changes.
• Made in the USA.

Designed for reliable, long-term filtration without sacrificing oil flow or serviceability. 🔧