Breather Tank - Dry Sump Rear End Bar Mount Style

The MOROSO Breather Tank – Dry Sump Rear End Bar Mount Style (MPN 85464) is a purpose-built crankcase ventilation reservoir designed for high-performance and motorsport applications requiring dry sump system management. This aluminum breather tank mounts directly to a bar mount configuration, making it ideal for vehicles running modified or race-oriented engine packages where oil separation and vapor control are critical to engine longevity and performance consistency.

Sized at 3.125 inches in diameter and 11.5 inches in height with a 1-quart capacity, this reservoir handles blow-by gases and oil vapors before they can compromise combustion efficiency or contaminate the intake tract. The tank features dual inlets—a 3/8-inch NPT female connection and a 1/2-inch NPT female inlet—allowing flexible plumbing configurations to match existing dry sump lines. The included petcock drain simplifies oil recovery and maintenance, while the integrated breather element prevents atmospheric moisture contamination. Natural aluminum construction provides corrosion resistance while keeping weight minimal, a priority in performance-oriented builds.

This breather tank is engineered for motorsports enthusiasts, drag racing builds, road course competitors, and custom engine builders who demand reliable crankcase ventilation without compromising hood clearance or aesthetics. Bar mount attachment keeps installation clean and unobtrusive while maintaining full accessibility for service. The verified capacity and port sizing ensure adequate separation and drainage under sustained high-RPM operation, making it a proven choice for serious engine builders and race shops.

MOROSO has built its reputation on precision engine ventilation and oil management components trusted across bracket racing, street performance, and circle track applications. This breather tank represents the engineering focus on reliability and fit that the brand is known for, ensuring your dry sump system functions as designed without surprises on the dyno or at the track.