--- product_id: 62789603 title: "12-803BP Fuel Pressure Regulator" brand: "holley" price: "R6263" currency: ZAR in_stock: true reviews_count: 5 category: "Holley" url: https://www.desertcart.co.za/products/62789603-12-803bp-fuel-pressure-regulator store_origin: ZA region: South Africa --- # 3/8" pipe thread inlet/outlet Adjustable fuel pressure 4.5-9 PSI Durable aluminum build 12-803BP Fuel Pressure Regulator **Brand:** holley **Price:** R6263 **Availability:** ✅ In Stock ## Summary > ⛽ Master your fuel flow, dominate the drive. ## Quick Answers - **What is this?** 12-803BP Fuel Pressure Regulator by holley - **How much does it cost?** R6263 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/62789603-12-803bp-fuel-pressure-regulator) ## Best For - holley enthusiasts ## Why This Product - Trusted holley brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Quieter Engine Operation:** Reduces fuel system noise for a smoother, more refined driving experience. - • **Precision Pressure Control:** Fine-tune fuel pressure from 4.5 to 9 PSI for optimal carburetor performance. - • **Robust Aluminum Construction:** Lightweight yet durable design ensures long-lasting reliability under pressure. - • **Universal Carburetor Compatibility:** Seamlessly fits various carburetors with vehicle-specific precision. - • **Easy Installation with Standard Ports:** 3/8" pipe thread inlet and outlet ports for hassle-free setup. ## Overview The Holley 12-803BP Fuel Pressure Regulator offers precise fuel pressure adjustment between 4.5 and 9 PSI, designed to meet the demands of various carburetors. Featuring durable aluminum construction and standard 3/8" pipe thread ports, it ensures easy installation and reliable performance. Ideal for professionals upgrading or maintaining fuel systems, it also promotes quieter engine operation and fits vehicle-specific applications. ## Description This fuel pressure regulator is used to adjust to fuel pressure requirements of various carburetors. It includes 3/8" pipe thread inlet and outlet ports and fits systems with a return line back to the fuel line. It allows for quieter operation and has a pre-set pressure of 7 PSI with a range of 4.5 to 9 PSI. Review: Nice Regulator - I put a 280ZX engine in my 240Z and the new engine is not set up for the original mechanical fuel pump so I had to install an electric fuel pump. The electric pump puts out too many PSI for the carburetor so I needed the regulator to be able to control the PSI of the fuel to the carburetor. This regulator works great. Highly recommend it. Review: Great regulator to convert from high pressure fuel injection pump ... - Great regulator to convert from high pressure fuel injection pump to low pressure carburetor conversion. Im regulating from about 60 psi down to 6psi and this regualtor is working very well with my stock v6 high pressure pump. Great rebuildable unit, good price. ## Features - Adjusts fuel pressure - Meets requirements of various carburetors - Includes 3/8" pipe thread inlet and outlet ports - Pre-set pressure of 7 PSI with range of 4.5 to 9 PSI - International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000CMDV84 | | Auto Part Position | Rear | | Automotive Fit Type | Vehicle Specific Fit | | Brand | Holley | | Brand Name | Holley | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.4 out of 5 stars 152 Reviews | | Fit Type | Vehicle Specific Fit | | Fit type | Vehicle Specific Fit | | Global Trade Identification Number | 00090127605172 | | Item Dimensions | 8.9 x 8.9 x 6.4 centimetres | | Item Weight | 0.6 Pounds | | Item dimensions L x W x H | 8.9 x 8.9 x 6.4 centimetres | | Item weight | 0.6 Pounds | | Manufacturer | Holley | | Manufacturer Part Number | 12-803BP | | Material | Aluminium | | Material Type | Aluminium | | Model Number | 12-803BP | | OEM Equivalent Part Number | 12-803BP | | Outlet Connection Size | 0.38 Inches | | Product Style | Modern | | Specification Met | OE | | UPC | 090127605172 | | Vehicle service type | Car | ## Images ![12-803BP Fuel Pressure Regulator - Image 1](https://m.media-amazon.com/images/I/71S+0iwFfxL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Nice Regulator *by B***B on 22 February 2014* I put a 280ZX engine in my 240Z and the new engine is not set up for the original mechanical fuel pump so I had to install an electric fuel pump. The electric pump puts out too many PSI for the carburetor so I needed the regulator to be able to control the PSI of the fuel to the carburetor. This regulator works great. Highly recommend it. ### ⭐⭐⭐⭐⭐ Great regulator to convert from high pressure fuel injection pump ... *by M***E on 29 July 2015* Great regulator to convert from high pressure fuel injection pump to low pressure carburetor conversion. Im regulating from about 60 psi down to 6psi and this regualtor is working very well with my stock v6 high pressure pump. Great rebuildable unit, good price. ### ⭐⭐⭐⭐⭐ excelente producto *by V***O on 19 June 2020* justo lo que necesitaba --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.za/products/62789603-12-803bp-fuel-pressure-regulator](https://www.desertcart.co.za/products/62789603-12-803bp-fuel-pressure-regulator) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-07-03*