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Item #:
25381066
Holley 12-327-11 110 GPH Mechanical Fuel Pump
Item #:
25381066
AED 801
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Order now and get it around Monday, August 17
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Holley has the mechanical fuel pump you need for your engine
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What Stands Out
High Flow Rate
Delivers an impressive 110 GPH, ensuring optimal fuel supply for high-performance engines, minimizing the risk of fuel starvation during intense driving conditions.
Mechanical Operation
Engineered for reliability, the mechanical design provides durability and ease of installation, appealing to enthusiasts who prefer simplicity and efficiency without complex wiring.
Versatile Compatibility
Designed to work with a variety of carbureted engines, this pump enhances performance while accommodating different applications, making it a great choice for custom builds and restorations.
Product Details
| Fit Type | Vehicle Specific Fit |
| Compatible with Vehicle Type | Marine Carbureted Applications Fits Small Block Chevy V8s |
| Part Interchange Info | 12-327-11 |
| Auto Part Position | Unknown |
| Outlet Connection Type | Threaded |
| Inlet Connection Type | Threaded |
| Gas Type | Methanol |
| Mounting Type | Tank Mount |
| Operation Mode | Mechanical |
| Product Grade | New |
| Automotive Fit Type | Vehicle Specific Fit |
| OEM Equivalent Part Number | 12-327-11 |
| Connector Type | NPT |
| Material Type | Aluminum |
| Body Material | Aluminum |
| Specification Met | [Regulatory Compliance] |
| Product Style | Gerotor |
| Item Dimensions | 6.9 x 5.7 x 4.2 inches (17.5 x 14.5 x 10.7 cm) |
| Item Weight | 1.5 Pounds (680 grams) |
| Outlet Connection Size | 0.38 Inches (1 cm) |
| Inlet Connection Size | 0.38 Inches (1 cm) |
| Brand Name | Holley |
| Manufacturer Part Number | 12-327-11 |
| Global Trade Identification Number | 00090127483992 |
| Manufacturer | Holley |
| UPC | 090127483992 |
| Model Number | 12-327-11 |
| Item Type Name | Mechanical Fuel Pump |
| Included Components | Mechanical Fuel Pump |
| Unit Count | 1.0 Count |
| Brand | Holley |
| Vehicle Service Type | Marine Carbureted Applications Fits Small Block Chevy V8s |
| Item dimensions L x W x H | 6.9 x 5.7 x 4.2 inches (17.5 x 14.5 x 10.7 cm) |
| Material | Aluminum |
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?
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Classic Car Enthusiasts
Ideal for those restoring or modifying classic vehicles that require a reliable mechanical fuel pump for optimal performance.
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High-Performance Engines
Best suited for users with high-performance engines needing a reliable fuel supply to maintain efficient power output.
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DIY Mechanics
Great for DIY enthusiasts looking to install a dependable fuel system in their projects with straightforward installation requirements.
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Modern Fuel Systems
Not ideal for newer vehicles that require electronic fuel pumps and advanced fuel management systems for operation.
Product Description
Holley 12-327-11 110 GPH Mechanical Fuel Pump
About This Item
Introducing the Holley HOL 12-327-11 Mechanical Fuel Pump in Silver, the perfect fuel pump for all your high-performance needs. Whether you're a racing enthusiast, a muscle car lover, or a hot rod enthusiast, this fuel pump is designed to enhance the performance of your vehicle. The Holley HOL 12-327-11 Fuel Pump is a mechanical fuel pump that ensures optimal fuel delivery to your engine. Its silver finish adds a touch of style to your engine compartment, making it perfect for classic cars and vintage vehicles. This high-performance fuel pump is engineered to meet the demands of performance vehicles, street rods, drag racing, and off-road adventures.
It delivers a consistent and reliable fuel flow, ensuring that your engine receives the fuel it needs to perform at its best. Designed with the needs of motorsports enthusiasts in mind, the Holley HOL 12-327-11 Fuel Pump is built to withstand the rigors of track racing. Its durable construction ensures long-lasting performance, even in the most demanding conditions. Whether you own a sport car, a modified car, a tuner car, or an import car, the Holley HOL 12-327-11 Fuel Pump is compatible with a wide range of vehicle makes and models. From American muscle cars like Ford, Chevrolet, and Dodge, to European classics like BMW, Audi, and Volkswagen, to Japanese favorites like Honda, Toyota, and Nissan, this fuel pump is designed to fit them all. Upgrade your vehicle's performance with the Holley HOL 12-327-11 Mechanical Fuel Pump in Silver.
Order yours today and experience the difference it can make in your driving experience.
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Customer Questions & Answers
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Question:
What is the flow capacity of the Holley 12-327-11 Mechanical Fuel Pump?
Answer: The Holley 12-327-11 Mechanical Fuel Pump offers a flow capacity of 110 GPH (gallons per hour). This capacity is designed to meet the demands of high-performance engines, ensuring that they receive a consistent and sufficient fuel supply. Whether you're racing, off-roading, or just enhancing your vehicle's performance, this pump can effectively support your engine's needs. The robust design allows for consistent operation under various pressure conditions, making it a reliable choice for enthusiasts. -
Question:
Is the Holley 12-327-11 Mechanical Fuel Pump compatible with all engines?
Answer: The Holley 12-327-11 is primarily designed for use with carbureted engines, particularly those that require a high fuel delivery rate. It's crucial to check the specifications of your engine to ensure compatibility. This pump works well with performance engines that utilize carburetors, providing the necessary fuel flow for optimal performance. If you’re upgrading your engine or building a customized setup, this pump could be an excellent addition to ensure your fuel system can meet heightened demands. -
Question:
What materials is the Holley 12-327-11 Mechanical Fuel Pump made of?
Answer: The Holley 12-327-11 Mechanical Fuel Pump is constructed using high-quality materials, including a durable aluminum housing designed to withstand harsh environments. This robust design not only enhances the longevity of the pump but also reduces the risk of fuel leaks. Moreover, the pump contains a sturdy diaphragm and high-grade components that contribute to its reliable performance even in demanding conditions. These materials are ideal for automotive applications, making it a trusted choice for serious car enthusiasts. -
Question:
How does the mechanical fuel pump operate compared to electrical pumps?
Answer: Mechanical fuel pumps like the Holley 12-327-11 operate using a diaphragm that is activated by the engine's camshaft, allowing for continuous fuel supply as the engine runs. This contrasts with electrical pumps that rely on an electric motor. Mechanical pumps are often favored for their simplicity, reliability, and reduced risk of failure due to fewer electronic components. They are an excellent choice for traditional and performance vehicles, ensuring fuel is delivered seamlessly as the engine operates. -
Question:
Can I install the Holley 12-327-11 Fuel Pump myself?
Answer: Yes, many car enthusiasts choose to install the Holley 12-327-11 Mechanical Fuel Pump themselves, especially if they have basic automotive skills. The installation typically involves mounting the pump securely, connecting fuel lines, and ensuring proper alignment with the engine's mechanical system. It’s advisable to have the right tools and refer to the installation manual provided by Holley for detailed steps. DIY installation can be a rewarding experience, enhancing your knowledge of your vehicle’s fuel system. -
Question:
What type of fuel is suitable for use with the Holley 12-327-11 pump?
Answer: The Holley 12-327-11 Mechanical Fuel Pump is designed to work with gasoline, making it suitable for various fueling applications in performance vehicles. When using this pump, it's essential to ensure that the fuel system is clean and free from contaminants that could affect pump performance. If you're using fuel additives or special blends, make sure they are compatible with your pump. This pump is particularly effective in high-performance settings, ensuring a steady fuel supply for optimized engine performance. -
Question:
What are the benefits of using a mechanical fuel pump like the Holley 12-327-11?
Answer: Using a mechanical fuel pump such as the Holley 12-327-11 offers several benefits, including reliability, simplicity, and consistent fuel delivery. Mechanical pumps are less prone to electrical issues and can provide excellent performance in high-demand situations, such as racing or off-roading. Additionally, they often require less complex electrical wiring, making them easier to install and maintain. If you're looking for a dependable fuel delivery system for your classic car or performance build, this pump is a great option. -
Question:
What kind of pressure can the Holley 12-327-11 Mechanical Fuel Pump produce?
Answer: The Holley 12-327-11 Mechanical Fuel Pump is capable of producing a pressure range of approximately 6-8 PSI, which is suitable for most carbureted engines. This pressure is ideal for delivering fuel efficiently, ensuring that the carburetor receives an adequate supply without flooding. It's essential to monitor fuel pressure in your system to prevent performance issues. This pressure output makes the pump a preferred choice for enthusiasts looking for reliability in both performance enhancement and daily driving. -
Question:
Where can I buy Holley 12-327-11 110 GPH Mechanical Fuel Pump?
Answer: You can purchase the Holley 12-327-11 110 GPH Mechanical Fuel Pump at Ubuy. Ubuy offers a variety of automotive products and has a reputation for reliable service, making it a convenient option for finding this specific fuel pump. Shopping at Ubuy can provide you with product details and customer support that ensures you make an informed choice for your vehicle's needs. -
Question:
What are the dimensions of the Holley 12-327-11 Mechanical Fuel Pump?
Answer: The Holley 12-327-11 Mechanical Fuel Pump has dimensions that optimize its installation compatibility. While exact measurements may vary, it is typically compact enough to fit various engine compartments without significant modifications. Ensuring that your chosen location for installation accommodates the pump's size is important to guarantee proper functioning. Securing the pump in the appropriate position also aids in effective fuel delivery, contributing to the overall performance of your vehicle.
Holley Mechanical Fuel Pumps 12-327-11 Editorial Review
The Holley 12-327-11 110 GPH Mechanical Fuel Pump has garnered a mixed reception from customers, with a notable divide between users who have successfully installed and used the pump and those who experienced significant quality control issues. Customers who reported positive experiences highlighted the fuel pump’s solid Construction and functionality. Reviewers noted that the pump fit well in their vehicles, including classics like the Chevelle and El Camino, and delivered the expected fuel pressure. However, a distressing number of users encountered serious problems, particularly concerning the quality of the threaded fittings on the pump. Several reviewers highlighted that they received units with poorly tapped threads, making installation difficult or even impossible. A common complaint was that the threads did not conform to 3/8" NPT specifications as advertised. Quality control seemed to be a major concern, with some customers encountering issues such as stripped threads and internal damages that rendered the pumps unusable after a short period. The lack of support from Holley's customer service further aggravated frustrations among dissatisfied customers who needed assistance. Overall, while the Holley 12-327-11 Mechanical Fuel Pump boasts a nice finish and good performance for some, the recurrent quality control issues have left many customers feeling let down, resulting in a divided opinion about this product. **
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Pros
- Well-made with good fit and finish.
- Successfully fits and provides adequate fuel pressure in various classic vehicle models.
- Many users report satisfactory performance after installation.
Cons
- Common complaints about poorly tapped inlet and outlet threads, not conforming to advertised specifications.
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11 June 2026 · via Trustpilot
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“On time delivery and great product at a really great price!”
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AED 801
Order now and get it around Monday, August 17
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Features & Benefits
- Wide range of mechanical fuel pumps available
- Pumps range from 80 GPH to 225 GPH
- Suitable for street performance and racing applications
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