AFTERMARKET PRODUCTS 12804 Carburetor Fuel Pressure Holley Regulator 12-803 Port 1/2

( Brand: Aftermarket Products ), ( Manufacturer Part Number: 12804 ), ( Country/region Of Manufacture: China ), ( Custom Bundle: No ), ( Manufacturer Warranty: 1 Year ), ( Material: Aluminum ), ( Mounting Hardware Included: Yes ), ( Type: Pressure Regulator ), ( Universal Fitment: Performance/custom )

Review AFTERMARKET PRODUCTS Carburetor Fuel Pressure Regulator For Holley Port 1/2 To Psi

Introducing the 12804 Carburetor Fuel Pressure Regulator from Holley, specifically designed for use with Holley part number 12-803 and port 1/2 applications. This regulator is an essential component in maintaining the optimal fuel pressure for your carbureted engine.

The 12804 regulator is meticulously crafted from high-quality materials to ensure durability and reliability. It features a robust brass body with a corrosion-resistant plating, ensuring it can withstand the rigors of regular use. The internal components are designed for precise fuel pressure regulation, featuring a diaphragm-operated mechanism that is both efficient and effective.

This regulator is designed to deliver fuel pressure ranging from 4 to 12 psi, making it suitable for a wide range of applications. It is also compatible with both gasoline and diesel fuels, making it a versatile choice for various engine types. The regulator comes with a 3/8 NPT threaded inlet and outlet, allowing for easy installation on most carbureted engines.

The 12804 regulator is also equipped with a convenient adjustment screw, enabling you to fine-tune the fuel pressure to your specific engine requirements. This feature allows for optimal engine performance, improved fuel efficiency, and reduced emissions.

Installation of the regulator is straightforward, thanks to its user-friendly design. The clear markings on the body make it easy to identify the correct orientation for installation, while the included instructions provide step-by-step guidance to help ensure a successful installation.

In summary, the 12804 Carburetor Fuel Pressure Regulator from Holley is an essential addition to any carbureted engine setup. Its rugged construction, precise fuel pressure regulation, and adjustable design make it a reliable and versatile choice for maintaining optimal engine performance.

The Holley 12-803 carburetor fuel pressure regulator, part number 12804, is a crucial component in maintaining proper fuel pressure for optimal engine performance in certain applications. Here are some pros and cons associated with purchasing this fuel pressure regulator.

1. Holley is a reputable brand known for manufacturing high-quality fuel system components, including fuel pressure regulators.

2. This regulator is specifically designed for Holley carburetors, ensuring a perfect fit and compatibility.

3. The regulator provides an adjustable fuel pressure range from 3 to 12 psi, making it suitable for various engine applications.

4. The regulator features a brass body and a stainless steel diaphragm, ensuring durability and resistance to corrosion.

5. Easy-to-use adjustment knob allows for quick and precise fuel pressure adjustments.

1. The price point for this fuel pressure regulator is slightly higher than some aftermarket alternatives.

2. Some users have reported that the regulator may leak fuel at the base or around the adjustment knob.

3. The regulator may require frequent adjustments to maintain the desired fuel pressure, especially under varying engine loads or operating conditions.

In conclusion, the Holley 12804 carburetor fuel pressure regulator offers several advantages, including brand reputation, compatibility, adjustability, and durability. However, it comes with potential downsides, such as a higher price point and the possibility of leaks.

If you're looking for a reliable and compatible fuel pressure regulator for your Holley carburetor, this option from Holley may be worth considering. Just be prepared for the potential need for frequent adjustments and the higher cost compared to some aftermarket alternatives. Ultimately, the decision to purchase this regulator depends on your specific needs, budget, and tolerance for potential issues.

Details:

Chrome finish. The 12-803 fuel pressure regulator features 3/8 NPT in/out ports. 12-803 2 Port 4 1/2 to 9 PSI Carburetor Fuel Pressure Regulator. Each fuel pressure regulator is fully adjustable so regulating the to your engines needs a simple task.

Mounting bracket included. 3/8 NPT ports 1 in, 2 out. Carburetor Fuel Pressure Regulator For Holley 12-803 2 Port 4 1/2 to 9 PSI.

Fuel pressure regulators are designed to precisely control the fuel from pump carburetor. All regulators are pre-set at the factory so there is no guesswork when first installing regulator. Too much fuel pressure for a given needle and seat assembly can overload the may cause flooding or provability problems.

part #: 12804 prices

• $21.82-$161.95

specifications airfueldepo:

• brand: Aftermarket Products
• mpn: 12804
• country/region of manufacture: China
• custom bundle: No
• manufacturer warranty: 1 Year
• material: Aluminum
• mounting hardware included: Yes
• type: Pressure Regulator
• universal fitment: Performance/custom

offer airfueldepo:

• quantity: 1
• started: July 24, 2025
• sold: 0
• options: Ship-to-home
• best offers: True
• availability: In Stock

shipping airfueldepo:

• cost: $0.00
• class: Standard
• type: Fixed
• service: Standard
• transit: 5-9 Days

returns airfueldepo:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

general airfueldepo:

• condition: New
• Car Truck Parts Accessories > Air Fuel Delivery > Other Air Fuel Delivery

payments airfueldepo:

• credit card: Mastercard
• other
• wallet: Apple-pay

seller airfueldepo:

• city: Monroe Township, New Jersey
• # reviews: 814
• rating: 97.4%

Aftermarket Products 12804 Is Similar To:

• Standard Motor Products Pr484 New Pressure Regulator (48.4% similar) Has made a positive impact on the automotive marketplace and beyond. Meeting customer demands in many different market channels is one of the qualities that sets sump apart. Our temperature control segment manufactures and remanufactured a full line of replacement parts for automotive air...(September 22nd, 2024)
• Standard Motor Products Qx981kt Carbon Canister For 2002-2004 Honda Crv 2003 Vapor (40.4% similar) Used canister with all sensors fits 2002 2003 and 2004 ...(November 16th, 2024)
• Walker Products 341xa59 Fuel Line Retainer For 1985 1987-1988 Ford E-150 Econoline (47% similar) Direct fit connectors. Important: please review fitment notes to ensure proper fit. 1985 ford E-150 online engine: 4.9L L6;. Direct fit replacement. Shipping handling service: please refer to shipping section. 1985 ford E-150 online engine: 5.0L V8;. Fuel line retainer walker for...(December 12th, 2024)
• Jaz Products 360-132-11 360 132 11 Fuel Cell Foam Kit 32 Gallon (36.6% similar) For kits, photo might show entire kit and listing is only for one component. Note: photos do not always represent the actual product. Fuel cell foam kit - 32-GALLON cell,:: 32 gal jazz cells set of 10...(December 20th, 2024)
• Jaz Products 305-050-01 305 050 01 Bat Wing Fuel Pick Up (29.3% similar) For kits, photo might show entire kit and listing is only for one component. Jazz Products 305-050-01 bat-wing fuel pick-up,:: pickup - bat wing 8 an hose barb plastic black each. Note: photos do not always represent the actual product...(December 21st, 2024)
• Hps Performance Products 827-680p-2 Air Intake 827 Series Polished For 2013-2016 Nissan Pathfinder 3.5l V6 (36.7% similar) HP's light weight 3 mandrel-bent aluminum alloy piping replace the stock restrictive air box and optimize flow with long lasting durability. Washable and reusable. Vehicle application: 2013 -2016 Nissan pathfinder 3.5L V6. The aluminum heat shield included in the kit blocks out from engine and...(December 27th, 2024)
• Jaz Products 360-016-11 Fuel Cell Foam 16 Gallon Cells Kit (38.5% similar) Buyer pays return shipping. Sold individually.; fuel cell foam is constructed of a high quality aviation rated safety foam offering extended lifespan. Note: not recommended to be used with alcohol, methanol, ethanol, E-85 or water as the content in these fuels can speed up unwanted deterioration...(December 28th, 2024)
• Hps Performance Products 827-545r Shortram Air Intake For 2015-2017 Subaru Wrx 2.0l Turbo With Heat Shield Red (33.2% similar) Bolt-on easy installation, no modification. All-new HP's performance 827 series air intake kit red with heat shield fits 2015 -2017 Subaru Rx 2.0L turbo. For listings with free shipping, it only applies within the continental 48 states. Deliver Dino proven performance gains - increase...(January 6th, 2025)
• Auto Racing Products 430-1602 430 1602 Stnless Fuel Pump Bolt Kt (35.2% similar) Sinless fuel pump bolt kt,:: for use with Chevy; hex head type; polished; stainless steel; washers. Your choice of either conventional hex heads or 12 point head. Washers are included. Note: photos do not always represent the actual product. For kits, photo might show...(January 11th, 2025)
• Cp Auto Products 40204 Hi-performance Carburetor Adapter Two Barrel (42.4% similar) Two barrel adapter: adapts any quad carb to 4 bolt 2-BARREL manifold. Part numbers are from the actual packaging and may not have a make / model reference. Everyone pays the price for this. 02/01/2025: GDP, location: Ana 57, rack: 8, shelf: 2, box: 230, ship 2.0 - 10X6X2, line: 569...(February 1st, 2025)
• Jaz Products 275-016-06 Fuel Cell And Can Pro Sport 16 Gal 26in W X 18in (37.7% similar) 28.1 and are accepted by most sanctioning organizations. All jazz polyethylene fuel cells exceed Sufi spec. This foam is far superior and has a 10 times longer service life than that of other non fuel approved foams on the market. 28.1, only fuel cells labeled this fuel cell carries Sufi...(February 4th, 2025)