Filter Biscuits For Nozzle Vent - (8-pack)

The Kinsler Filter Biscuits For Nozzle Vent (8-pack) are precision foam filter elements designed for engine breather systems and crankcase ventilation applications. Whether you're running a high-performance street engine, a track-focused build, or a heavily modified daily driver, proper crankcase evacuation is essential to engine longevity and consistent performance. These filter biscuits prevent oil mist, vapor, and contaminants from entering your intake manifold while maintaining optimal crankcase pressure—critical for turbocharged, supercharged, or naturally aspirated applications where blow-by management directly impacts ring seal integrity and combustion chamber cleanliness.

Each foam filter element in this 8-pack uses a compact, efficient design engineered to trap oil particulates and moisture while minimizing backpressure on your crankcase. The porous foam construction offers superior filtration surface area compared to traditional mesh screens, extending the service life between cleanings and reducing the frequency of carbon buildup in intake valves. Kinsler's reputation for precision engineering in fuel systems extends to their ventilation components—these biscuits are dimensioned to fit Kinsler nozzle vents exactly, ensuring zero leakage and maximum filtration efficiency. The lightweight construction (0.01 lbs per biscuit) and compact footprint (3.3 x 0.65 x 6.1 inches) allow easy integration into custom intake or breather manifold setups without adding bulk or complexity.

Serious engine builders and performance mechanics favor Kinsler filter biscuits for both street and competition applications, especially in forced-induction environments where crankcase pressure control directly affects turbo efficiency and intercooler performance. The 8-pack quantity allows you to stock spares for routine maintenance cycles or maintain multiple vehicles without frequent reordering. Installation is straightforward—simply insert the foam biscuit into your Kinsler nozzle vent assembly; no special tools or adhesives required. These are essential consumables for anyone serious about preventing oil contamination in fuel systems and maintaining clean, efficient engine breathing under sustained high-RPM operation.