Click here to learn more about this liquidation sale. Don't miss out!
-10% 100 GPH HP In-line Fuel Pump

Holley’s HP™ In-Line Billet Fuel Pumps are designed to be the perfect companion to your carbureted or fuel injected race car, off-road truck or any engine needing fuel! The HP™ fuel pumps feature OEM gerotor technology which yields lightweight, quiet operation and 100,000+ mile durability in a cost effective, attractive package. HP™ fuel pumps are Race gas, E-85 and diesel compatible and can be used in racing applications with 18.5 volt charging systems up to 80 psi.

*Pump gas compatible for intermittent or under 90 degree ambient temperature use

Pump gas use recommendations:

• This pump is compatible with pump gas, but is not recommended for street driven vehicles where the ambient temperature is regularly above 90 degrees

• For street driven vehicles in high temps with pump gas, Holley recommends part numbers 12-600 or 12-800 for optimum hot fuel handling

• Proper fuel system engineering is critical for maximum performance. Please see Holley Fuel System Chart for information about proper installation of your fuel system.

Will work with E-85 and Diesel!

These pumps do not have an internal bypass. A bypass style regulator and return line are required.


This pump is not designed to use a standard conical seat style union in the inlet or outlet of the pump. Example: Part # AT981508ERL. Use of this style fitting will block flow and WILL lead to poor performance and pump failure. The ONLY correct fitting to use is a contoured port fitting with an O-ring seal such as :Part # AT985008ERL.

Not Sure? Review this product documentation before you buy!

Installation Guide
Holley HP Fuel Pump (65, 80, and 100 GPH) Installation Guide

Holley Fuel System Primer

Fluid Fittings
Fittings IncludedNo
Inlet Size10 AN O-Ring - 7/8-14 SAE
Outlet Size8 AN O-Ring - 3/4-16 SAE
Fuel Pumps
Flow Rate (GPH)78 GPH (43 PSI), 70 GPH (60 PSI) - At 13.8 Volts
Flow Rate (LPH)295 LPH (43 PSI), 265 LPH (60 PSI) - At 13.8 Volts
Fuel SystemEFI
Fuel TypeRace Gas, Pump Gas, E85, Diesel
OEM ReplacementNo
Unit of SaleEach

Write a review

Note: HTML is not translated!
    Bad           Good

100 GPH HP In-line Fuel Pump

  • Views: 23836
  • Brand: Holley
  • Product Code: 12-890
  • Availability: In Stock
  • $542.00
  • $486.95