Harley Breather Kits and Parts

A properly functioning breather system is critical for engine longevity and consistent performance—inadequate ventilation leads to pressure buildup, oil degradation, and potential seal failure. The EASTERN MOTORCYCLE PARTS Breather Pipe O-6-001 is an...

Proper crankcase ventilation is essential for engine longevity and performance, and a quality breather nipple ensures your '58-'64 engine breathes efficiently without compromising internal pressure. This Eastern Motorcycle Parts nipple maintains proper...

A properly functioning breather system is critical to engine longevity and performance—it prevents crankcase pressure buildup that can compromise seals, gaskets, and overall engine integrity. The EASTERN MOTORCYCLE PARTS Breather Pipe A-24912-48A...

A properly functioning breather system is critical to engine longevity and consistent performance, as it prevents excessive crankcase pressure that can damage seals and compromise oil integrity. The EASTERN MOTORCYCLE PARTS Breather Tube A-29476-99 is...

Big bore engines inevitably produce excessive blow-by, and that pressure buildup can degrade your oil quality and engine seals over time. The Feuling Vented Dipstick solves this problem by venting unwanted crankcase pressure while giving you an accurate...

Big-bore Harley engines are prone to excessive blow-by, which builds unwanted pressure in your oil tank and compromises engine health. The FEULING Vented Dipstick solves this problem by actively venting pressure through a breather system while giving you...

The S&S Cycle Breather Screw is an essential replacement component for maintaining proper crankcase ventilation on your engine. A worn or damaged breather screw can compromise seal integrity, leading to oil seepage and reduced engine reliability. This...

Proper crankcase ventilation is critical to engine longevity and reliable operation—this S&S Cycle vent banjo fitting ensures your breather system maintains optimal flow and pressure relief. A worn or damaged vent fitting can lead to pressure buildup,...

Proper crankcase ventilation is essential to maintaining bearing integrity and preventing oil blowby in high-performance engines. The S&S Cycle Vent Banjo Fitting ensures reliable fluid routing without leaks, protecting your engine's longevity during...

If you're running a Mikuni carb setup on your '92-'06 Harley, you know that choke accessibility and carb stability matter when you're dialing in performance. This DRAG Specialties support bracket eliminates the guesswork by providing a rock-solid...

If you're running an XL 120179 and want to upgrade your intake system without fighting fitment issues, this mount solves the compatibility puzzle between modern EFI systems and quality aftermarket air cleaners. You get a complete, bolt-on solution that...

If you're running a late-model Harley with either OEM CV carb or Delphi EFI, upgrading to a high-flow aftermarket air cleaner is one of the most direct paths to improved throttle response and horsepower—but only if you have the right bracket system. This...

Proper crankcase ventilation is critical for engine longevity and performance—excess pressure buildup accelerates wear on seals, gaskets, and internal components. This DRAG SPECIALTIES breather kit eliminates that risk with a sealed, filtered design that...

Engine breather systems demand precision fitment to prevent vacuum leaks and maintain proper crankcase ventilation. This washer kit provides the critical centering and sealing components necessary for a leak-free installation, ensuring your breather...

Breather system reliability hinges on secure, corrosion-resistant fastening—and these chrome-plated hex-head bolts deliver exactly that. Designed specifically for Twin Cam platforms, they provide the sealing integrity your engine's crankcase ventilation...

Proper engine breather systems require reliable fastening hardware that resists corrosion and maintains a secure seal under vibration. These DRAG Specialties breather bolts deliver chrome-plated durability and precision fit across most Evolution engine...

Grooved hose clamps deliver a professional, finished appearance to your fuel and oil line routing—essential for builds where aesthetics matter as much as function. Whether you're running braided stainless steel lines or OEM rubber hose, these chrome...

Grooved hose clamps deliver the polished, factory-finished appearance that separates a quality build from an amateur assembly. Whether you're securing braided fuel lines, oil cooler hoses, or coolant lines on a race engine, these chrome clamps eliminate...

Maintaining proper airflow through your S&S Super E/G carburetor starts with a quality replacement cover that seals air leaks and protects internal components from contamination. This genuine S&S part ensures optimal performance consistency and extends...

Air cleaner cover screws may seem like minor fasteners, but worn or damaged hardware compromises your air intake seal—allowing unfiltered air to bypass your filter element and potentially damage your engine. S&S Cycle replacement cover screws restore a...