K&N 81-0403 Electric Fuel Pump, Inline, 34 GPH, 10 PSI, 5/16 Inch Line
K&N 81-0403 Electric Fuel Pump, Inline, 34 GPH, 10 PSI, 5/16 Inch Line
K&N

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#465810403

K&N 81-0403 Electric Fuel Pump, Inline, 34 GPH, 10 PSI, 5/16 Inch Line

  • Pump is compatible with diesel, biodiesel, gasoline, E85, methanol, ethanol, alcohol and other fuels
  • The universal design will fit most applications
  • It can pump 34 gallons per hour between 7 and 10 psi
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PSI:

7-10 PSI

1-2 PSI1.5-4 PSI4-7 PSI

$94.99

/each

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Product Summary

Universal Fit, External Electric Fuel Pump Type, Inline

  • Pump is compatible with diesel, biodiesel, gasoline, E85, methanol, ethanol, alcohol and other fuels
  • The universal design will fit most applications
  • It can pump 34 gallons per hour between 7 and 10 psi
  • A unique self-priming design provides a quiet running volume
  • Engineered to eliminate vapor lock and flooding
See more details

Key Specs

MFG. Part #81-0403
BrandK&N
Electric Fuel Pump TypeExternal
Free Flow Rate34 GPH / 129 LPH
Maximum Pressure10 psi
See more specs

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K&N 81-0403 Details

This fuel pump from K&N provides premium quality fuel system hardware with a universal design that fits a wide variety of applications. This 12-volt pump helps prevent vapor lock and flooding. 

  • Compatible with diesel, biodiesel, gasoline, E85, methanol, ethanol, alcohol and other fuels
  • Universal design fits most applications
  • Pumps 34 gallons per hour between 7 and 10 psi
  • Self-priming design provides a quiet running volume
  • Eliminates vapor lock and flooding
  • Fuel filter and installation hardware is included

When a lower fuel pressure is required when using this fuel pump, please consider the following low pressure regulators:

When a lower fuel pressure is required when using this fuel pump, please consider the following low pressure regulators:

Warranty Information

K&N Warranty Info (PDF)

K&N 81-0403 Specifications

KEY SPECS
MFG. Part #81-0403
BrandK&N
Electric Fuel Pump TypeExternal
Free Flow Rate34 GPH / 129 LPH
Maximum Pressure10 psi
GENERAL
InlineYes
Electric Fuel Pump Inlet Fitting(s)5/16" Hose Barb
Electric Fuel Pump Outlet Fitting(s)5/16" Hose Barb
Material TypePlastic
Sold in QuantityEach
NotesIncludes fuel filter, self-regulating.
GTIN Code024844350831

Ratings & Reviews

4.3

3 Reviews

Overall Assessment

Customers have appreciated the product, in particular for its compatibility with engines, such as Ford's flathead. Many have made use of it more than once, indicating its reliability. While it is reportedly a bit noisy, it does not pose an issue as the sound is usually drowned out by the engine. Its chief aspects are thus utility, dependable performance and compatibility with a range of engines. The product is preferred for its standout features and functions over competitor offerings.

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4.3

3 reviews

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Good product

5.0

5 years ago

Earl

Lansing, Ks

Verified

New engine will not accept mechanical fuel pump

Would Recommend

Fuel pump

4.0

8 years ago

John

Minnesota

Verified

Will use on Ford flathead

Would Recommend

This is my second one,

4.0

8 years ago

Poopsy

Pennsburg

Verified

Good pump, a little noisy but cannot hear it over engine

Would Recommend

Showing 3 of 3 reviews

Questions & Answers

6 Questions • 7 Answers

Does this pump require a return to the fuel tank

by Tommy Wright

• 8 years ago

2 answers

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I am building an Enduro car using a 1992 Ford Escort. I would like to replace the stock fuel tank with a fuel cell - as a result I will need to install an inline fuel pump. Will this product work for my application? Stock 4 cylinder fuel injected.

by New

• 10 years ago

1 answer

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will this pump work on a 1998 mercruiser 3.0 its the old chevy 2.5 this isnt a gravity fed pump is it

by steve

• 10 years ago

1 answer

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Would this pump be correct for a slightly modified Flathead 1.949 running three stromberg 97 carb.?

by Masot

• 10 years ago

1 answer

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What size line fittings does this pump use. I will need to connect it to a 3/8 inch gas line.

by Bill

• 10 years ago

1 answer

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Would this pump be sufficient for a slightly modified Chevy 350 running an Edelbrock 600cfm carb?

by kirok

• 11 years ago

1 answer

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