877-600-8388 Contact Us Mon-Sat 10a-6p
BUILD YOUR PASSION

Holley Chrome Carbureted Fuel Pressure Regulator 12-803

Holley Chrome Carbureted Fuel Pressure Regulator 12-803
Holley Chrome Carbureted Fuel Pressure Regulator 12-803Holley Chrome Carbureted Fuel Pressure Regulator 12-803Holley Chrome Carbureted Fuel Pressure Regulator 12-803Holley Chrome Carbureted Fuel Pressure Regulator 12-803Holley Chrome Carbureted Fuel Pressure Regulator 12-803Holley Chrome Carbureted Fuel Pressure Regulator 12-803Holley Chrome Carbureted Fuel Pressure Regulator 12-803
$77.99 ea
NEWARRIVING SOONEstimated Ship Date 07/04/2024 (If Ordered Today)100 Available from HOLLEY PERFORMANCE PRODUCTS as of 06/14/2024
Model: 3917904
STANDARD
DELIVERY
Holley fuel pressure regulators are designed to precisely control the fuel pressure from the fuel pump to the carburetor. Too much fuel pressure for a given needle and seat assembly can overload the needle and seat and may cause flooding or drivability problems. Each Holley fuel pressure regulator is fully adjustable so regulating the fuel pressure to your engines needs is a simple task. All Holley regulators are pre-set at the factory so there is no guesswork when first installing the regulator. The Holley 12-803 fuel pressure regulator features 3/8" NPT in/out ports.
Features:
  • Adjustable fuel regulation from 4-1/2 to 9 psi
  • .220" (7/32") restriction
  • 3/8" NPT ports ( 1 in, 2 out)
  • Chrome finish
  • Mounting bracket included
The mounting holes in the regulator are not threaded. The screws included are self-tapping for use in installation. Regulator is compatible with Diesel #1 and Diesel #2.
Installation Notes:
The mounting holes in the regulator are not threaded. The screws included are self-tapping for use in installation. Regulator is compatible with Diesel #1 and Diesel #2.
About Holley Performance Products

Holley has been the undisputed leader in fuel systems for over 100 years. Holley carburetors powered every Monster Energy NASCAR Cup team and nearly every NHRA Pro-Stock champion for four decades. Now, Holley EFI products power these cars and are dominating the performance world. Holley products for GM's popular LS engine are dominating the LS scene as well. Holley's products also include performance fuel pumps, intake manifolds and engine dress-up products for street performance, race and marine applications. As a single solution or partnered with products from other Holley companies we can give you the edge you need over the competition!

Downloads:

Download Name File Size
holleyfuelsystems_chart1.pdf360.32KB
199r7914-3rev6.pdf591.79KB

Videos:

Specifications:

Color Shiny
Emission Code 5, 3
Fuel System Gasoline
Fuel Type Gasoline, Diesel
Inlet Size 3/8 inch NPT
Material Aluminum
Outlet Size 3/8 inch NPT
Part Type Fuel Pressure Regulator
Pressure Range 4.5-9 PSI
Product Type Fuel Pressure Regulator
Proposition 65 www.P65Warnings.ca.gov
Style Non-Return
Warranty Limited 90 Day

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

Holley Chrome Carbureted Fuel Pressure Regulator 12-803:

Frequently bought together

B&M Pro Stick Lockout Pin 80726
Model: 3998399
Condition: NEW
$31.99 ea
1953-1976 Dimmer Switch Grommet - Plastic Replacement
Model: 1000443
Condition: NEW
$11.99 ea
Hooker Cut-Out Motor Only 11060HKR
Model: 4008516
Condition: NEW
$86.99 ea
Mr. Gasket Fuel Block with 0-15 PSI Fuel Pressure Gauge 1560
Model: 4010872
Condition: NEW
$92.99 ea
Corvette Depot 2024