Helps reduce oil leaks caused by excessive back pressure
For air-cooled Volkswagen engines
Cast aluminum. Breather box features a combination of vents (from your air cleaner, valve covers and crankcase) to let engine breathe easily. Includes breather box with 3 mounting tabs, washable foam filter, zinc-plated fittings, 1/2 in. vinyl hose, hose clamps and instructions.