Harley Breather Kits and Parts

Head breather oil carryover is a common problem on M8 engines that leads to messy drips, clogged air filters, and unnecessary performance loss. The TRASK Transmission Cover eliminates this issue at the source by venting excessive crankcase pressure...

A properly ventilated transmission cover keeps heat and pressure from building up in your M8 engine bay, maintaining optimal fluid temperatures and extending transmission life under sustained performance demands. The TRASK vented design ensures...

Proper crankcase ventilation is critical for engine longevity and reliability, especially in high-performance applications where pressure buildup can compromise seals and gaskets. The FEULING Oil Tank Breather Kit eliminates excessive crankcase pressure...

An oil tank breather kit prevents pressure buildup in your crankcase, protecting seals and gaskets from premature failure while reducing oil leakage and maintaining consistent engine performance. Proper crankcase ventilation is essential for long engine...

An oil tank breather kit is essential for maintaining proper crankcase ventilation and preventing pressure buildup that can damage seals and gaskets. This stainless steel unit from Feuling offers superior corrosion resistance and longevity compared to...

Proper crankcase ventilation is essential for engine longevity and performance—excessive pressure buildup can compromise seals, degrade oil, and reduce overall reliability. The Feuling Oil Tank Breather Kit eliminates these issues by managing crankcase...

A properly functioning breather system is critical to maintaining crankcase pressure and preventing oil leakage, seal degradation, and internal engine damage. This stainless steel breather kit from Feuling eliminates restrictive factory designs, ensuring...

Big-bore engines naturally develop excessive blow-by that degrades oil quality and tank pressure—the FEULING Vented Dipstick solves this by actively venting unwanted pressure while you monitor oil levels accurately. This direct replacement screws into...

Blow-by buildup in large-displacement engines creates excessive pressure in your oil tank, leading to oil leaks, contamination, and accelerated wear. The FEULING Vented Dipstick actively manages this pressure while maintaining accurate oil level...

Excessive blow-by in big-displacement engines causes oil sump buildup and pressure that degrades engine seals and breather systems. The FEULING Vented Dipstick solves this problem by actively venting unwanted pressure through a dedicated breather circuit...

Big-bore engines suffer from excessive blow-by that builds unwanted pressure in your oil tank—pressure that degrades seals, forces oil past gaskets, and creates mess. The Feuling Vented Dipstick solves this by actively venting pressure through a breather...

Big-displacement M-Eight engines produce excessive blow-by that accumulates pressure in your oil tank—causing seal failures, oil leaks, and accelerated wear. The FEULING Vented Dipstick actively vents this pressure while letting you monitor oil levels...

Big bore M-Eight engines naturally generate excessive blow-by—unburned gases that build pressure in your oil tank and compromise engine sealing. The Feuling Vented Dipstick actively removes this pressure through a dual-option breather system, protecting...

A clogged breather filter compromises your engine's ability to manage crankcase pressure, leading to oil leakage, seal degradation, and potential performance loss. The Feuling Oil Pump Corp. replacement filter element (3082) restores proper ventilation...

Positive crankcase ventilation directly impacts engine reliability and longevity—poor breather systems allow moisture and blow-by gases to accumulate, degrading oil quality and accelerating internal wear. The FEULING Rocker Box Breather Kit eliminates...

An oil tank breather system prevents crankcase pressure buildup that can compromise seals, gaskets, and engine integrity over time. Feuling's breather kit channels vapors efficiently, reducing oil leakage and extending engine life—especially critical for...

A properly functioning crankcase breather system is essential for protecting your engine and maximizing performance on late-model XL platforms. This complete kit eliminates the complexity of retrofitting aftermarket air cleaners by providing all...

Upgrading to an aftermarket air cleaner transforms your Big Twin's breathing potential, delivering improved throttle response and peak horsepower gains while maintaining seamless compatibility with your stock fuel system. This complete kit eliminates the...

If you're running a '93-'14 Big Twin with factory carburetor or EFI, upgrading to an aftermarket air cleaner means ditching restrictive OEM intake geometry for improved throttle response and airflow efficiency. This DRAG SPECIALTIES support breather kit...

A properly functioning breather tube is essential for maintaining crankcase ventilation and preventing pressure buildup in your engine. This Eastern Motorcycle Parts unit integrates seamlessly with OEM backing plates and air filter assemblies, ensuring...