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The K&N 81-0400 Performance Electric Fuel Pump delivers steady, low-pressure fuel flow for carbureted engines and other low-pressure systems. Designed for universal compatibility, this 12-volt inline pump provides approximately 15 gallons per hour at 1–2 psi, ensuring smooth and consistent performance across a variety of fuel types and vehicle setups.
Its self-regulating design minimizes vapor lock and flooding, helping maintain reliable operation under varying conditions. Each pump includes a built-in fuel filter for clean fuel delivery and comes with all necessary mounting hardware for straightforward installation. The compact construction allows flexible placement, making it an excellent choice for custom builds, system upgrades, or OEM replacements.
Built with K&N’s quality engineering and materials, the 81-0400 is designed for durability, efficiency, and ease of use. It complies with Prop 65 standards, providing safe and dependable performance for both enthusiasts and professionals.
Features:
Universal fit for a wide range of carbureted and low-pressure applications
12-volt self-regulating operation maintains steady 1–2 psi fuel pressure
Pumps approximately 15 gallons per hour for reliable fuel delivery
Includes durable inline fuel filter and complete installation hardware
Compact, lightweight design fits tight mounting locations
Engineered for consistent performance and long-term reliability
Compatible with most fuel types
Prop 65 compliant (not CARB-approved)
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
