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- Holley 12-840 4.5-9 PSI Adjustable Billet Fue...
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Item #:
598926
Holley 12-840 4.5-9 PSI Adjustable Billet Fuel Pressure Regulator with 3/8" NTP Ports,Black Anodized
Item #:
598926
SHP 282
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What Stands Out
Adjustable Pressure
The Holley 12-840 allows precise fuel pressure adjustment between 4.5 to 9 PSI, ensuring optimal engine performance and adaptability for various applications.
High-Quality Construction
Crafted from premium billet aluminum and finished with a black anodized coating, this regulator offers exceptional durability and resistance to corrosion, ensuring long-lasting reliability in demanding environments.
Versatile Compatibility
With 3/8" NTP ports, this fuel pressure regulator easily integrates into different fuel systems, making it a versatile choice for both street and race applications, enhancing overall vehicular functionality.
Product Details
| Brand Name | Holley |
| Model Number | 12-840 |
| Global Trade Identification Number | 00090127670453 |
| Manufacturer | Holley |
| Number of Items | 1 |
| UPC | 090127670453 |
| Included Components | Holley HP Billet Fuel Pressure Regulators 12-840 |
| Item Weight | 3.2 ounces (90.72 grams) |
| Manufacturer Part Number | 12-840 |
| Exterior Finish | Black Anodized Aluminum |
| Outlet Connection Type | NPT |
| Maximum Pressure | 9 psi |
| Number of Ports | 2 |
| Thread Size | 3/8 inch (96.5 cm) |
| Thread Type | NPT |
| Connector Type | Threaded |
| Valve Type | Fuel Pressure Regulator |
| Outlet Connection Size | 0.38 inches (1 cm) |
| Size | 3/8 Inch (96.5 cm) |
| Material Type | Aluminum |
| Material | Aluminum |
| Brand | Holley |
| Maximum Operating Pressure | 9 psi |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
-
Performance Tuners
Ideal for automotive enthusiasts adjusting engine performance, providing precise control over fuel pressure for optimal tuning.
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Custom Builds
Perfect for custom engine builds that require adjustable pressure settings to accommodate different fuel delivery needs.
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Racing Enthusiasts
Designed for race cars needing reliable and easily adjustable fuel pressure, enhancing performance under competitive conditions.
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Casual Drivers
Not necessary for everyday driving situations where fixed pressure regulators suffice for standard vehicle performance.
Product Description
Holley 12-840 4.5-9 PSI Adjustable Billet Fuel Pressure Regulator with 3/8" NTP Ports,Black Anodized
About This Item
Introducing the Holley 12-840 4.5-9 PSI Adjustable Billet Fuel Pressure Regulator with 3/8" NTP Ports in a sleek black anodized finish. Designed by fuel system experts, Holley, this fuel pressure regulator is built to provide exceptional performance and durability for your vehicle. Precision machined from 6061-T6 billet aluminum, this regulator is not only strong but also lightweight. Its black bright dip anodized body, paired with the clear bright dip anodized top, not only give it a sleek appearance but also provide corrosion resistance, ensuring it stays in top-notch condition for years to come. The Holley 12-840 fuel pressure regulator is designed with 3/8" NPT in/out ports, allowing for easy installation and compatibility with a wide range of fuel systems.
With an adjustable pressure range of 4.5-9 PSI, this regulator gives you the flexibility to fine-tune your fuel system for optimal performance. Whether you're upgrading your existing fuel system or building a high-performance engine, the Holley 12-840 Fuel Pressure Regulator is a must-have. Its billet construction, adjustable pressure, and reliable performance make it an essential component for any fuel system setup. Upgrade to the Holley 12-840 Adjustable Billet Fuel Pressure Regulator and experience the difference in fuel system performance. Fuel your passion with Holley, the trusted name in fuel system technology. Keywords: Holley Billet Fuel Pressure Regulator, Adjustable Billet Fuel Pressure Regulator, Holley 12-840 Fuel Pressure Regulator, Billet Fuel Pressure Regulator, Holley Fuel Pressure Regulator, Adjustable Fuel Pressure Regulator, Fuel Pressure Regulator, Holley 12-840, Billet Fuel Pressure.
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Customer Questions & Answers
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Question:
What is the material of the product?
Answer: The product is CNC machined with a black bright dip anodized body and clear anodized ends. -
Question:
Is installation easy?
Answer: Yes, it includes a mounting plate for quick and easy installation. -
Question:
What is the weight of the package?
Answer: The package weight is 0.2 pounds. -
Question:
What’s the max inlet pressure for the regulator?
Answer: Since it is not a bypass style regulator you should not put more than 25 PSI into the regulator and expect to regulate it down to 4.5-9 PSI. -
Question:
Is this regulator e85 compatible?
Answer: AS FAR AS I KNOW, YES, IT IS E85 COMPATIBLE -
Question:
Is this a return style regulator?
Answer: No, it is not. -
Question:
Which port is for the return line to the fuel tank? Or does it not matter with 'Out' port you use?
Answer: This is not a return style fuel regulator, it has two outs for convenience so you can mount it where you want. So if you need one with a return, this is not the correct regulator for you. -
Question:
What size AN fittings can I use on this?
Answer: Most normal fuel lines are 6 an. -
Question:
What size are the slotted screws that mount it to the bracket?
Answer: 12-24 -
Question:
Is there any benefit to running 2 fuel lines out to split carb pressure? 4 barrel carb
Answer: No advantage, will only burn more fuel and possibly make it easier to flood engine. Unless you are running a high HP engine on the drag strip, stick with one line. -
Question:
What is the pressure range?
Answer: 4.5-9 PSI as stated
Holley Pressure Regulators 12-840 Editorial Review
The Holley 12-840 4.5-9 PSI Adjustable Billet Fuel Pressure Regulator has garnered a mixed reception among users. For many, it has proved to be an effective solution for regulating fuel pressure. Several customers have praised its performance, particularly noting its ability to maintain steady fuel pressure for their carbureted setups, like in the case of a 1999 Dodge Dakota. These users express satisfaction with the unit's quality and fit, indicating that it met their installation needs. However, there are significant concerns regarding the longevity and reliability of this product. Some users have reported issues with the regulator's Construction, including problems with the bottom clip that holds the internal components in place, which has resulted in operational failures. Furthermore, a notable complaint involves internal degradation leading to fuel quality issues, with reports of discolored fuel after extended downtime. This inConsistency has left a portion of the user base disappointed, fueling skepticism about the product's reputation despite its initial promise. Overall, while the Holley 12-840 may serve well for those needing reliable fuel pressure regulation, potential buyers should be aware of the durability concerns that have emerged and carefully weigh their options. **
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Pros
- Maintains steady fuel pressure for carbureted setups
- Generally high product quality and good fit
Cons
- Reports of degradation after short usage leading to discolored fuel
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SHP 282
Order now and get it around Tuesday, September 15
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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Features & Benefits
- CNC Machined for precision and durability.
- Striking black and clear anodized finish for aesthetics.
- Features a convenient 1/8 in. NPT gauge port.
- Includes a mounting plate for hassle-free installation.
- Designed to enhance fuel-system performance.
- Backed by Holley's century-long commitment to innovation.
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