Airtex 6P1257 PCV Valve Filter - BF36 Positive Crankcase Ventilation Filter

The Airtex 6P1257 is a direct-fit PCV (Positive Crankcase Ventilation) Valve Filter, also marketed under the trade designation BF36. This filter is a critical component of the engine's emissions and crankcase ventilation system, preventing unfiltered air and contaminants from entering the PCV circuit and ultimately the engine's intake.

The PCV valve filter works in conjunction with the PCV valve to regulate the flow of blow-by gases from the crankcase back into the intake manifold for reburn. A clean, properly functioning filter ensures accurate crankcase pressure regulation, helps reduce oil consumption, and keeps the intake system free of contaminants.

Key Features:

• Direct OEM-style replacement for a precise, no-modification fit
• Manufactured to meet or exceed original equipment specifications
• Helps maintain proper crankcase pressure and ventilation efficiency
• Protects the PCV system from dirt and debris ingestion
• Made by Airtex Automotive Division, a trusted OEM-grade supplier

Cross-Reference Part Numbers:

• Airtex / Wells: 6P1257
• Trade Number: BF36
• Ford OE: E6ZZ-6A631-B
• Standard Motor Products / SMP: PCV388
• BWD Automotive: EC241
• CarQuest: ECA1409
• Additional Cross: A13463, 47064

Airtex Automotive Division is headquartered in Fairfield, IL, and holds quality certifications including ISO/TS 16949:2002 and ISO 14001, ensuring consistent product quality and reliability.