Aeromotive 11108
Aeromotive A1000 Marine Inline Fuel Pump (Model 11108) User Manual
For EFI and Carbureted Marine Engines
1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Aeromotive A1000 Marine Inline Fuel Pump, Model 11108. This high-performance rotary vane fuel pump is designed for marine applications, compatible with both EFI (Electronic Fuel Injection) and carbureted engines, and supports gasoline and E85 fuel types.
The A1000 marine fuel pump is certified to ISO 8846, SAE J1171, and U.S. Coast Guard standards for ignition protection and fire resistance, ensuring reliable and safe operation in marine environments.

Figure 1: Aeromotive A1000 Marine Inline Fuel Pump (Model 11108).
2. Safety Information
- Always disconnect the battery before working on the fuel system.
- Ensure proper ventilation when working with fuel.
- Wear appropriate personal protective equipment (PPE), including eye protection and gloves.
- Fuel systems operate under pressure. Relieve fuel pressure before disconnecting any fuel lines.
- This product is not legal for sale or use on emission-controlled vehicles except when used as a direct replacement part matching OEM specifications.
3. Setup and Installation
The Aeromotive A1000 Marine Fuel Pump is designed for external inline mounting. Proper installation is crucial for performance and safety. Refer to the detailed installation manual (PDF) available on the product page for comprehensive instructions.
3.1 Mounting
Mount the pump in a location that is protected from direct impact and excessive heat. Ensure the pump is mounted below the fuel tank's lowest level to facilitate gravity feeding and prevent cavitation. Use the provided mounting bracket and hardware. The pump features ORB-10 female inlet and outlet ports for secure, high-flow fuel line connections.

Figure 2: Aeromotive A1000 pump showing ORB-10 inlet/outlet ports.
3.2 Fuel Line Connections
Connect appropriate ORB-10 fittings and fuel lines to the pump. Ensure all connections are tight and leak-free. Use high-quality fuel hose suitable for marine applications and the fuel type (gasoline or E85).
3.3 Electrical Wiring
The pump operates on a 12V electrical system. Connect the pump to a fused, switched 12V power source capable of handling the pump's maximum current draw (18A @ 45 psi). Ensure proper grounding. Consult a qualified marine electrician if you are unsure about wiring procedures.
3.4 Fuel System Diagram Examples
Below are example diagrams for complete fuel system setups. These illustrate typical configurations for EFI and carbureted systems. A fuel pressure regulator is required and sold separately.

Figure 3: OEM Fuel Rail, Fuel Injected System Diagram.

Figure 4: Dual Fuel Rail, Fuel Injected System Diagram.

Figure 5: Dual Feed Carbureted System Diagram.
For EFI applications, use regulator P/N 13101 or P/N 13303. For carbureted applications, use regulator P/N 13204 or P/N 13304.
4. Operating Instructions
The Aeromotive A1000 fuel pump is designed for continuous operation. Once properly installed and wired, the pump will activate when the ignition is turned on, pressurizing the fuel system. Always ensure the fuel tank has an adequate supply of fuel before operating the pump.
- Pre-Start Check: Before starting the engine, visually inspect all fuel lines and connections for leaks.
- Initial Start-up: After installation, cycle the ignition key a few times without starting the engine to allow the pump to prime the system and build pressure. Check for leaks again.
- Continuous Operation: The pump is designed for long-term use, tested to run continuously for over 2,000 hours.
- Fuel Compatibility: This pump is compatible with gasoline and E85 fuel types. Do not use with diesel fuel.

Figure 6: Horsepower ratings for EFI and Carbureted Engines.
5. Maintenance
The Aeromotive A1000 fuel pump is designed for minimal maintenance. However, regular checks of the fuel system are recommended to ensure optimal performance and longevity.
- Fuel Filter Inspection: Regularly inspect and replace fuel filters as needed. Clogged filters can restrict fuel flow and reduce pump life. Aeromotive recommends using appropriate pre- and post-pump filters.
- Hose and Fitting Inspection: Periodically check all fuel hoses and fittings for signs of wear, cracking, or leaks. Replace any damaged components immediately.
- Electrical Connections: Ensure all electrical connections are clean, tight, and free from corrosion.
- Mounting Security: Verify that the pump remains securely mounted and that there is no excessive vibration.
6. Troubleshooting
If you experience issues with your Aeromotive A1000 fuel pump, consult the following troubleshooting guide. For complex issues, contact Aeromotive technical support or a qualified mechanic.
| Problem | Possible Cause | Solution |
|---|---|---|
| Pump does not turn on | No power, blown fuse, faulty wiring, poor ground connection. | Check fuse, verify 12V power supply, inspect wiring and ground connections. |
| Low fuel pressure | Clogged fuel filter, restricted fuel line, faulty fuel pressure regulator, low fuel level, air in system. | Replace fuel filter, inspect fuel lines for kinks, check regulator function, ensure adequate fuel, bleed air from system. |
| Fuel leaks | Loose fittings, damaged fuel lines, faulty seals. | Tighten all fittings, replace damaged lines or seals. |
| Excessive noise from pump | Cavitation (air in fuel), restricted inlet, worn pump components. | Ensure pump is below fuel level, check inlet for obstructions, consider professional inspection if noise persists. |
7. Specifications
Key specifications for the Aeromotive A1000 Marine Inline Fuel Pump (Model 11108):
| Feature | Detail |
|---|---|
| Model Number | 11108 |
| Brand | Aeromotive |
| Series | A1000 |
| Maximum Flow Rating | 1000 lbs/hr (approximate, refer to flow chart) |
| Maximum Pressure | 100 psi |
| Fuel Type Compatibility | Gasoline, E85 |
| Fit Type | Universal Fit |
| Mounting Type | External, Inline |
| Pump Design | Rotary Vane |
| Motor Style | Brushed |
| Inlet Connection Type | ORB-10 Female Thread |
| Outlet Connection Type | ORB-10 Female Thread |
| Maximum Current Draw | 18A @ 45 psi |
| Voltage | 12V |
| Body Material | Aluminum |
| Item Dimensions (L x W x H) | 8.5 x 4.75 x 4 inches |
| Item Weight | 6 pounds |
| Certifications | ISO 8846, SAE J1171, U.S. Coast Guard (Ignition Protection & Fire Resistance) |

Figure 7: Detailed Specifications and Dimensions.

Figure 8: Flow Chart for Aeromotive A1000 Fuel Pump (Model 11101, similar performance).
8. Warranty Information
The Aeromotive A1000 Marine Inline Fuel Pump is covered by a manufacturer's warranty. For detailed terms and conditions, please refer to the official Warranty document available as a PDF on the product page or contact Aeromotive customer support.
A link to the Warranty document can be found here.
9. Customer Support
For technical assistance, questions regarding installation, operation, or warranty claims, please contact Aeromotive customer support. You can find contact information on the official Aeromotive website.
Additional resources, including the full Installation Manual and User Manual, are available in PDF format:
10. Product Videos
Watch official product videos for more information and visual guidance.
Aeromotive Brand Video
This video provides an overview of the Aeromotive brand and its commitment to fuel system performance. It highlights the quality and engineering behind their products.
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