Direct: (503) 987-4002
Main: (503) 987-4000





The Adrenaline MFG Gearbox Breather is a premium, high-point vent solution engineered for serious off-road and racing applications. Designed to consolidate multiple gearbox vents into a single elevated breather location, this system helps protect driveline components from water intrusion, contamination, and pressure-related failures during extreme use.
Precision CNC-machined from aircraft-grade 6061 billet aluminum, this breather manifold delivers both rugged durability and clean, professional aesthetics. A Type II anodized finish enhances corrosion resistance while maintaining a refined appearance suitable for engine bays, frame rails, and custom fabrication projects.
Beyond gearbox ventilation, this versatile unit also functions as a high-pressure air distribution manifold. With multiple NPT and BSPP ports, it can be configured for central tire inflation systems (CTIS), air horns, air bag suspension setups, and other compressed air applications requiring multiple inlet and outlet ports.
Proudly manufactured and assembled in the USA by a 100% veteran-owned and operated company, this kit provides a complete, ready-to-install solution for off-road enthusiasts, fabricators, and race teams demanding reliability and performance.
We ship nationwide and internationally. Most in-stock items leave our shop within 1–3 business days. Made-to-order and oversized parts may require additional lead time; any special timing will be noted on the product page.
If an order is placed outside of our normal business hours (Monday–Friday), we will process it as soon as possible once our team is back in the shop during regular operating hours. Weekend orders will be handled the next business day.
We want you stoked on your gear. Eligible items may be returned within 30 days of delivery for a refund or exchange.
Many products include a manufacturer warranty. We’re happy to help facilitate claims—reach out with your order number, photos, and a description of the issue.
Questions about shipping or returns? Get in touch—our team is here to help you get trail-ready.
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