1-800-345-4545
FREE SHIPPING!
Orders Over $95
Same Day Shipping Before 11 PM ET
0
My Cart
$0.00
Shop By Vehicle
Shop By
Category
All Categories

Rebates
Gift Certificates
My Account
E-Mail Signup
Catalog Request
Help

Holley 12-803

Max Fuel Pressure Regulator 3/8" NPT Inlet/Outlet

Holley 12-803

510-12-803

jegs shipping
Ships
$30.41
$27.37
ON SALE - $3.04 OFF
Holley 12-803 Max Fuel Pressure Regulator 3/8" NPT Inlet/Outlet $27.37
Max Pressure Regulator
  • Chrome Finish
  • For use with gasoline
  • Port Size: 3/8'' NPT Inlet/Outlet
  • 4-1/2 to 9 PSI
  • Includes Mounting Bracket

  • Holley 12-803 Details

    Max Pressure Regulator

  • 3/8 in. NPT Ports
  • .220 in. Restriction
  • Incl. Mounting Bracket
  • Low Pressure 1-4 PSI
  • High Pressure 4.5-9 PSI
  • Chrome Finish
  • Not Alcohol Compatible

  • Specifications:

    Mounting Bracket Included
    Yes
    Fittings Included
    No
    Boost/Vacuum Reference Port
    No
    Gauge Port
    No
    Inlet Attachment
    Female Threads
    Inlet Quantity
    One
    Outlet Attachment
    Female Threads
    Pressure Range (psi)
    4.5-9
    Quantity
    Sold individually
    Rebuildable
    Yes
    Regulator Finish
    Chrome plated
    Regulator Location
    Inline
    Regulator Material
    Aluminum
    Regulator Style
    Non-Return
    Inlet Size (in.)
    3/8 NPT
    Outlet Size (in.)
    3/8 NPT
    Outlet Quantity
    Two
    Manufacturer's Part Number:
    12-803

    These Holley Fuel Pressure Regulators are great for adjusting for fuel pressure requirements of various carburetors. Having too much fuel pressure present at the inlet of the carburetor will cause the needle and seat to stay open resulting in flooding and driveability issues.

    Holley Standard Pressure Regulator
    Recommended for low-pressure applications that require steady flow. Fuel pressure regulators are factory adjusted by Holley to 2.7 psi with a 1-4 psi range. Accepts 3/8" NPT fittings.

    Holley Max Pressure Regulator
    Adjusts from 4.5 to 9 psi. Also good as a high-pressure bypass. 2 regulators are recommended for dual 4-barrel applications. Accepts 3/8" NPT fittings.

    Holley Big-Port Regulator
    Die-cast aluminum regulator adjusts from 4.5 to 9 psi. Least restrictive, highest flowing production regulator with one 1/2" NPT inlet port and two 1/2" NPT outlet ports. Mounting hardware included.

    12-803 - Holley Fuel Pressure Regulators is rated 4.6667 out of 5 by 9.
    • 2016-12-03T08:48CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
    • cp_1, bvpage1
    • co_hasreviews, tv_2, tr_7
    • loc_en_US, sid_10001_10001_18328, PRD, sort_relevancy
    • clientName_jegs
    Rated 5 out of 5 by from Holley regulator Been doing a lot of business with Jegs as of recent and will continue. Their prices are reasonable and the products are great. Thank you for being there for us gearheads
    Date published: 2016-05-16
    Rated 5 out of 5 by from EXACT REPLACEMENT OF MY EXISTING PART WORKS LIKE A DREAM! ONLY ISSUE WAS BOTTOM MOUNTING HOLES NEEDED TO BE THREADED PRIOR TO INSTALL.
    Date published: 2014-12-26
    Rated 5 out of 5 by from excellent price Works just as the writeup said. Happy with my purchase.
    Date published: 2014-11-03
    Rated 5 out of 5 by from High Quality I bought this for my Edelbrock AFB and it works great
    Date published: 2016-01-19
    Rated 5 out of 5 by from High Quality! This regulator may be inexpensive, but it is definitely not cheap. The whole assembly is solid and well constructed. Adjustments are very easy to make if the preset pressure is not preferred, and the pressure is maintained accurately regardless of temperature. Be sure to attach the mounting bracket to the regulator before attaching the inlet fuel line!
    Date published: 2016-05-03
    Rated 5 out of 5 by from Great Regulator for the money Awesome regulator for carburated nitrous set up. Have 3 regulators, one for each stage of nitrous. Rock steady and reliable. Best for the money.
    Date published: 2016-05-31
    Rated 5 out of 5 by from Holley Regulator Very Satified!!!!!!!!!!!!!!! Would buyu this product again!
    Date published: 2016-10-04
    • 2016-12-03T08:48CST
    • bvseo_cps, prod_bvrr, vn_cps_3.4.0
    • cp_1, bvpage1
    • co_hasreviews, tv_2, tr_7
    • loc_en_US, sid_10001_10001_18328, PRD, sort_relevancy
    • clientName_jegs
    Easy Kits
    Items You Need
    Items You May Also Consider