SKU: 81-0403 | UPC: 024844350831
K&N 81-0403 Performance Electric Fuel Pump 7-10 PSI Diesel
This K&N 81-0403 inline electric fuel pump delivers consistent 34 gallons per hour at 7-10 PSI for diesel and multi-fuel systems. Its universal design works with 5/16-inch fuel lines in trucks, off-road vehicles, and custom diesel setups. Self-regulating operation eliminates vapor lock and flooding while providing quiet, reliable performance across biodiesel, gasoline, E85, methanol, and more.
Key Features
- High Flow Rate: Pumps 34 GPH between 7-10 PSI to maintain steady fuel delivery under demanding conditions
- Multi-Fuel Compatible: Handles diesel, biodiesel, gasoline, E85, methanol, ethanol, alcohol, and other fuels without issues
- Vapor Lock Prevention: Self-priming design stops flooding and ensures smooth starts in hot environments
- Complete Kit: Includes inline fuel filter and all installation hardware for immediate use
- Quiet Operation: Universal inline mount fits most applications with minimal noise and vibration
Product Notes
- Designed for external inline installation on 5/16-inch fuel lines
- 12-volt operation requires clean power source for longevity
- Box dimensions 7.25 x 3 x 2.75 inches for compact storage
Installation Notes
- Professional installation recommended.
- Mount securely in-line after tank pickup using provided clamps
- Compatible with rubber or hard fuel lines. check polarity on wiring
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | Universal | Diesel Fuel Systems | 5/16″ Lines |
| 1989-2023 | Dodge/Ram | Cummins Diesel Trucks | All |
| 1998-2023 | Ford | Powerstroke Diesel | All |
| 1989-2023 | GM/Chevy | Duramax Diesel | All |
Why Choose K&N?
- Over 60 years in performance filtration and fuel delivery
- Durable construction withstands extreme fuels and pressures
- Engineered for precise flow in high-demand diesel applications
Frequently Asked Questions
- Q: Does this fit specific diesel trucks?
A: Yes, universal design suits most 5/16-inch line systems including Cummins, Powerstroke, and Duramax swaps or upgrades - Q: What materials are used in construction?
A: Rugged steel body with corrosion-resistant internals for diesel and alcohol fuels - Q: What is the warranty and install time?
A: 2-year limited warranty. basic inline install takes 1-2 hours with included hardware
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure box 7.25 x 3 x 2.75 inches
- Weight: 1.5 lbs
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