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Your cart is empty.AeroVent axle vent breather is a crucial component that allows your vehicle's differential to breathe, preventing pressure buildup and potential leaks. As your vehicle's drivetrain components rotate, they displace air, causing pressure changes inside the differential housing. The AeroVent vent breather acts as a controlled pathway, allowing this air to flow in and out while keeping contaminants like dirt and moisture at bay. Constructed with durable materials and precise engineering, this unassuming part plays a vital role in extending the life of your differential's gear oil and internal components. Whether you're tackling rugged off-road trails or simply commuting, a properly functioning axle vent breather ensures your differential operates at peak efficiency, providing a smooth and reliable driving experience mile after mile. Vent Head Size: 0.55 in (14 mm) Vent Head Style: Hex Vent Material: Engineering Steel Vent Thread Size: ⅛” NPT or PTF Vent Weight: 0.49 oz (14 grams) UPC: 634562041500