Breather Can LS7 w/Mnt Bracket

The Peterson Fluid Breather Can LS7 with Mount Bracket is a purpose-built crankcase ventilation tank for LS-series engine platforms. This bolt-on breather system manages positive crankcase pressure while preventing oil carryover—a critical function in high-performance and modified engine applications where factory ventilation proves inadequate.

Rated at 1-quart capacity with a 4.5-inch diameter and 7-inch height, the tank features aluminum construction finished in natural (unpainted) for corrosion resistance and lightweight integration. The dual 6 AN male inlets accept hose connections from the engine's valve cover breather ports, while the single 12 AN male outlet routes recovered vapors back into the intake or atmosphere depending on your tuning configuration. The included mount bracket provides secure installation and vibration isolation. These specifications translate to reliable pressure management in street, track, and off-road LS swaps where crankcase blow-by control directly impacts seal longevity and engine cleanliness.

Operators and engine builders integrating LS powerplants into non-original platforms—whether in off-road vehicles, marine applications, or custom fabrication projects—rely on secondary breather systems like this to prevent oil contamination and maintain consistent engine bay conditions. The dual-inlet design accommodates two separate breather sources, common in LS valve cover layouts. AN port sizing ensures compatibility with standard hose and fitting ecosystems used in performance engine builds.

Peterson Fluid Systems holds established credibility in the performance engine community for breather technology. This model suits builders seeking OEM-quality crankcase management without the cost of full engine-bay redesigns. Compact dimensions and bolt-on integration minimize installation labor while meeting real-world ventilation demands in modified LS applications.