K&N Inline Electric Fuel Pump (81-0401)

The K&N 81-0401 is designed for street-performance carbureted engines that require a moderate fuel flow with precise pressure control. It strikes an ideal balance, offering higher output than basic units while maintaining the 1.5–4 PSI range necessary for sensitive street carburetors, ensuring your engine gets the fuel it needs without flooding.

Key Specifications

• Part Number: 81-0401 | Flow Rate: 95LPH (25 GPH) | Pressure: 1.5–4 PSI
• Compatibility: Gasoline, Diesel, Biodiesel, E85, Methanol, Ethanol, Alcohol

Overview

This pump is a favorite for street builds and classic cars where performance is improved but the engine is not yet at a full-race level. The 81-0401’s quiet operation and self-priming capability make it a seamless upgrade for those moving away from mechanical fuel pumps.

Usage Notes

• Application: Ideal for street performance engines and classic V6/V8 setups.
• Mounting: Install within 12 inches of the fuel tank.

K&N Inline Fuel Pump Series

• 81-0400 - 57LPH, 1–2 PSI (Vintage)
• 81-0401 - 95LPH, 1.5–4 PSI (Street Performance)
• 81-0402 - 121LPH, 4–7 PSI (High-Performance Carbureted)
• 81-0403 - 129LPH, 7–10 PSI (High-Flow / Diesel)