K & N Electric Fuel Pump 81-0400

A reliable fuel pump is the foundation of any high-performance fuel system—undersized or failing units cause vapor lock, hesitation, and inconsistent power delivery. The K&N 81-0400 delivers consistent fuel pressure with minimal electrical draw and noise, making it ideal for carbureted builds, EFI conversions, and forced induction applications. Its self-priming design and multi-fuel compatibility mean one pump handles gasoline, E85, diesel, and fuel additives without compromise.

• Self-priming internal check valve
• Lightweight composite housing
• Corrosion-resistant construction
• Sealed electronics protection
• Compatible with gasoline, diesel, E85, biodiesel
• Replaceable inlet fuel filter
• Bolt-on 5/16" fuel line fittings
• 12V DC operation
• Only 65 dB operating noise
• Self-regulating (no external regulator)
• 6,000-hour performance rating
• 12" maximum lift height
• Made in U.S.A.
• Eliminates vapor lock
• Eliminates fuel flooding