Cruiser Bike Engine Vents
- Kuryakyn®Bluegrass Breather KitBluegrass Breather Kit by Kuryakyn®. Unfortunately, almost all Harley-Davidson engines that vent the crankcase through the cylinder heads also expel oil through the same passages. Venting directly into the air cleaner, especially a...Not Available for Sale in the State of CaliforniaThoroughly developed for unbeatable quality and enduring value$74.69
- Kuryakyn®Breather BoltBreather Bolt by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$11.69 - $13.49
- Kuryakyn®Rubber BootsRubber Boots by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$8.09 - $11.69
- Kuryakyn®1 1/4" Breather Bolt (9975)1 1/4" Breather Bolt (9975) by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$12.56
- Kuryakyn®Long Leg Bluegrass Breather Kit (9930)Long Leg Bluegrass Breather Kit (9930) by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$74.69
- Kuryakyn®Short Leg Bluegrass Breather Kit (9932)Short Leg Bluegrass Breather Kit (9932) by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$74.69
- Kuryakyn®TC Style Breather Bolt (9927)TC Style Breather Bolt by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$11.69
- Biker's Choice®Crankcase Breathers Replacement Filter (74065A)Crankcase Breathers Replacement Filter by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$14.09
- Kuryakyn®Rubber Boots (9900)Rubber Boots (9900) by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$8.09
- Biker's Choice®Breather Bolt KitBreather Bolt Kit by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$15.00 - $20.43
- Biker's Choice®Breather KitBreather Kit by Biker's Choice®. Includes breather bolts, washers and hardware. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of...One-piece chrome tube designIncludes breather bolts, washers and hardware$45.38
- HardDrive®Breather KitBreather Kit by HardDrive®. Use these brackets and breather kits when installing an aftermarket air cleaner. If a custom breather system is used, some support brackets are available without the breather system.Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$117.86 - $201.56
- JIMS®Breather Valve GearBreather Valve Gear by JIMS®. Made in the USA from aerospace grade steel, this is another quality JIMS® product. Use JIMS® Breather Hole Reamer Tool. A damaged breather hole used to be a costly problem, now it is not....Unique design to meet your tastes and preferencesManufactured to deliver incredible quality$119.12
- S&S Cycle®Breather Conversion KitBreather Conversion Kit by S&S Cycle®. Improved breather hardware for Super E & G air cleaner kits. Banjo fittings are sealed with silicone coated washers instead of O-rings. The washers are much more durable and seal better to...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$44.96 - $64.95
- S&S Cycle®Breather GearBreather Gear by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$110.95 - $152.95
- S&S Cycle®Crankcase Breather Reed ValveCrankcase Breather Reed Valve by S&S Cycle®. Consists of three steel reeds that are normally in the closed position. When pistons travel downward in the cylinders, the air in the crankcase is compressed and pressure in the crankcase...Easy-to-install when changing cams or servicing oil pumpPrecise engineering ensures the latest in quality$144.95 - $160.95
- Biker's Choice®Crankcase BreatherCrankcase Breather by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$12.03 - $17.87
- Biker's Choice®Breather Bolt Kit (120230)Breather Bolt Kit by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$20.43
- Biker's Choice®Breather Bolt Kit (120231)Breather Bolt Kit by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Designed to provide unrivaled value and maximum reliabilityExpertly crafted from the highest grade materials$15.00
- Biker's Choice®Breather Kit (120166)Breather Kit by Biker's Choice®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...One-piece chrome tube designIncludes breather bolts, washers and hardware$45.38
- HardDrive®Bracket with Bolts and Breather Tube (120238)Bracket with Bolts and Breather Tube (120238) by HardDrive®. Use these brackets and breather kits when installing an aftermarket air cleaner. If a custom breather system is used, some support brackets are available without the breather...Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$76.46
- HardDrive®Bracket with Bolts and Breather Tube (120117)Bracket with Bolts and Breather Tube (120117) by HardDrive®. Use these brackets and breather kits when installing an aftermarket air cleaner. If a custom breather system is used, some support brackets are available without the breather...Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$62.06
- HardDrive®Breather Kit (120426)Breather Kit (120426) by HardDrive®. Use these brackets and breather kits when installing an aftermarket air cleaner. If a custom breather system is used, some support brackets are available without the breather system.Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$117.86
- HardDrive®Breather Kit (120425)Breather Kit (120425) by HardDrive®. Use these brackets and breather kits when installing an aftermarket air cleaner. If a custom breather system is used, some support brackets are available without the breather system.Precise manufacturing and high-grade materialsExpertly crafted from the highest grade materials$117.86
- Hayden Enterprises®Crank Vent Plus Crankcase Venting System (KVP)Crank Vent Plus Crankcase Venting System by Hayden Enterprises®. More than simply venting your crankcase fumes, the Krank Vent Plus controls the air under the pistons by maintaining the proper amount of vacuum in the crankcase at any...Made in USAThoroughly developed for unbeatable quality and enduring value$128.38
- JIMS®Steel Breather Valve Gear (2337S)Steel Breather Valve Gear by JIMS®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Crafted to deliver unbeatable levels of qualityHigh grade materials for exceptional performance$119.12
- James Gaskets®Rocker Cover Breather Filter Elements (JGI-63815-99)Rocker Cover Breather Filter Elements by James Gaskets®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured...Made in USADesigned to cover your gasket and sealing needs$23.93
- Kuryakyn®1/2" Breather Bolt (9976)1/2" Breather Bolt (9976) by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$13.49
- Kuryakyn®Formed Breather Hoses (9977)Formed Breather Hoses by Kuryakyn®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading...Thoroughly developed for unbeatable quality and enduring valueMade with experience and proven by quality$10.79
- S&S Cycle®Air Cleaner Breather Fittings (17-0355)Air Cleaner Breather Fittings by S&S Cycle®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from...Precise engineering ensures the latest in qualityExpertly manufactured from highly reliable materials$10.95
A breather is essentially a valve designed to unseal the crankcase under the action of pressure naturally appearing in the enclosed space while the piston is moving down. A rather primitive surge valve, a breather is the part of the crankcase ventilation system which was greatly improved when people realized that crankcase gases are toxic and not very good for nature. To make them less harmful, the breather guides them to the air intake where they are sucked by the motor with fresh air. Thus, breathers now serve the eco-friendliness of an internal combustion engine no matter the vehicle.
The primary difference between the crankcase ventilation of your motorcycle and the automotive one is that the latter has quite a lot more elaborate design than the former, dictated by far stricter eco standards that modern cars and trucks must meet. Still, the breather is definitely not a part you want to be malfunctioning on your motorcycle. Not only because it’s bad for the planet but also because it’s bad for the engine itself – keep in mind the primary function of the valve and imagine how long the seals and gaskets would last if it was not fulfilled. For a new breather, browse our cruiser bike engine vents inventory.
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