- Home Page /
- Auto & Tires /
- Performance Parts /
- Performance Fuel, Carburetors and Intakes /
- Performance Fuel Regulators /
- Holley Performance 12-840 Fuel Pressure Regul...
0 ratings
Item #:
105084478
Holley Performance 12-840 Fuel Pressure Regulator
Item #:
105084478
STD 5012713
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, September 23
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Adjustable from 4.5-9 psi for precise fuel pressure adjustments.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Precision Control
Offers accurate fuel pressure regulation, ensuring optimal engine performance and reliability in high-demand situations, making it essential for performance-oriented vehicles.
Durable Design
Constructed from high-quality materials to withstand extreme conditions, providing longevity and consistent performance compared to competing products.
Versatile Compatibility
Designed to fit a wide range of applications, from street cars to high-performance engines, catering to various user needs and enhancing functionality.
Product Details
| Vehicle model | 12-840 |
| Vehicle make | Holley |
| Vehicle fitment type | Specific |
| Automotive parts division | Performance |
| Brand | Holley |
| Automotive specialty part type | Fuel Pressure Regulator |
| Features | Adjustable |
| Material | Billet Aluminum |
| Finish | Metal |
| Dimensions | 3.800 |
| Weight | 0.6 lb (270 grams) |
| Has written warranty | No |
| Items included | Fuel Pressure Regulator, Mounting Plate |
| Vehicle type | Car |
| Pack quantity | 1 |
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 those enhancing vehicle performance through precise fuel pressure adjustments for optimal engine efficiency.
-
Racers
Perfect for competitive racing environments where fuel delivery and pressure consistency are crucial for maximum power.
-
Engine Rebuilders
Great for mechanics or enthusiasts rebuilding engines needing reliable fuel system components for improved functionality.
-
Casual Drivers
Not necessary for everyday drivers seeking standard performance without specialized aftermarket modifications.
Product Description
Holley Performance 12-840 Fuel Pressure Regulator
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the pressure adjustment range of the regulator?
Answer: The regulator is adjustable from 4.5 to 9 psi. -
Question:
Is this regulator suitable for both electric and mechanical pumps?
Answer: Yes, it can be used with both electric and mechanical pumps. -
Question:
Does the regulator come with a mounting bracket?
Answer: Yes, a mounting bracket is included.
Holley Performance Fuel Regulators Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Stable fuel pressure control
- Easy to adjust settings
- Durable construction
- Improves engine performance
Cons
- Installation can be tricky for some.
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
STD 5012713
Order now and get it around Wednesday, September 23
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.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Adjustable fuel pressure from 4.5 to 9 psi.
- Constructed from durable 6061-T6 billet aluminum.
- Corrosion-resistant black anodized base and clear anodized top.
- Designed for use without a return line.
- Compatible with both electric and mechanical pumps.
- Includes one 3/8 NPT inlet, two outlets, and a gauge port.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.