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Product Overview
Aeromotive 18649 is the 15-gallon baffled aluminum fuel cell with an integrated brushless 10.0-GPM nominal pump module, pre-pump filter and True Variable Speed controller. Select the exact capacity, sender arrangement, mounting space and complete fuel-system configuration. The pressure sources differ as detailed below.
Key Features
- 15-gallon nominal cell; current listed dimensions 18-inch length × 20-inch width × 10-inch height.
- The current exact 15-gallon specification includes a fuel-level sender. The shared manual specifies a 0–90-ohm gauge connection: zero ohms empty, 90 ohms full. A gauge or signal converter is separate; do not assume compatibility with another resistance range.
- Integrated analog-controlled brushless spur-gear pump; no raw-PWM supply or universal CAN compatibility.
- Bypass regulation, return plumbing and properly routed external tank venting are separate installation requirements.
Fitment
Universal racing/custom fuel-cell installation selected by mounting support, space, fuel, required delivery, pressure, electrical supply and gauge compatibility. No vehicle-specific Year/Make/Model fitment is implied. Support the floor, top and sides appropriately and follow the applicable racing body's mounting requirements; straps and mounting hardware must be selected separately.
Current primary states an OEM-specification direct-replacement exception for emission-controlled vehicles, while the shared manual states not legal for emission-controlled vehicles. Confirm the exact legal installation; a custom fuel-cell conversion is not automatically an OEM-equivalent replacement.
Specifications
| Detail | Value |
|---|---|
| Manufacturer part number | 18649 |
| Cell configuration | 15-gallon nominal capacity; baffled natural-finish aluminum |
| Listed dimensions | 18-inch length × 20-inch width × 10-inch height; verify full installed clearance including cap, pump/controller and fittings |
| Pump | Integrated brushless spur-gear, 10.0-GPM nominal family designation; no pressure/voltage test-point flow guarantee inferred |
| Fuel sender | The current exact 15-gallon specification includes a fuel-level sender. The shared manual specifies a 0–90-ohm gauge connection: zero ohms empty, 90 ohms full. A gauge or signal converter is separate; do not assume compatibility with another resistance range. |
| Ports | ORB-10 pump outlet; the manual describes an AN-08 cell return connection and two AN-08 rollover/vent connections. Verify the actual cell-port and adapter sealing interfaces. The primary's ORB-12 pump-inlet reference describes the pump's inlet path, not a second vehicle feed outlet or a filler/return connection. |
| Pressure limits | Current exact family page lists 60-psi continuous operation and up to 100-psi peak pressure, base plus boost. The linked shared manual instead says 90-psi continuous and a 90-psi intermittent ceiling for these exact 10.0-GPM cell variants. Obtain the limits for the actual pump/controller revision before choosing pressure; do not adopt the separate 125-psi intermittent allowance assigned to other part numbers. |
| Power | Current primary specifies straight 12–16-VDC power and warns that nominal 16-V charging systems can run at 16–18 V and require reduction to normal 12-V charging-system levels. Power must be flat DC, not PWM; reverse polarity can destroy the controller. The exact manual diagram shows 6-AWG main supply/ground, minimum 60-A relay/fuse and 16/18-AWG control wiring; verify the actual circuit and protection with the installer. |
| Speed control | Integrated external brushless True Variable Speed controller uses a dedicated yellow signal wire for true analog 0–5-VDC speed control. Manual threshold is approximately 0.5 V before rising above the minimum speed floor and approximately 3.7 V for full speed. At zero signal the pump still runs at its 30–40% minimum floor; zero signal does not stop the pump. Separate manual modes permit constant full, constant low and switched low/high operation; they are not a reason to apply arbitrary voltages to an ECU analog output. |
What's Included
One 15-gallon nominal aluminum baffled fuel cell with its filler-neck arrangement, integrated brushless 10.0-GPM nominal pump module, TVS controller and pre-pump filtration. The current exact 15-gallon specification includes a fuel-level sender. The shared manual specifies a 0–90-ohm gauge connection: zero ohms empty, 90 ohms full. A gauge or signal converter is separate; do not assume compatibility with another resistance range. Mounting straps, vehicle mounting hardware, a separate gauge, complete power/relay wiring, post-filter, regulator and complete fuel lines are not promised; the exact loose package/BOM and pre-filter media/micron specification must be confirmed.
About Aeromotive
Aeromotive develops performance fuel pumps, regulators, filters, rails, tanks, fittings, controllers, and complete fuel-system components for street, racing, and custom applications. Black Ops Auto Works organizes each listing by exact part number and available application data to support accurate system planning.
Related Parts
- Shop Aeromotive fuel-system components
- Read the manufacturer shared fuel-cell and TVS controller instructions
Frequently Asked Questions
What is 18649?
15-gallon fuel cell with an integrated brushless 10.0-GPM nominal pump and True Variable Speed controller, not the other cell capacity or a bare external pump.
Does it include a fuel-level sender?
The current exact 15-gallon specification includes a fuel-level sender. The shared manual specifies a 0–90-ohm gauge connection: zero ohms empty, 90 ohms full. A gauge or signal converter is separate; do not assume compatibility with another resistance range.
Does variable speed eliminate the regulator?
No. The shared manual requires a bypass-style fuel-pressure regulator and return circuit. Speed control reduces delivery at low demand; it is not documented as closed-loop fuel-pressure regulation.
Can I use raw PWM power or control?
Pump power must be flat DC. The dedicated speed wire expects true analog DC; the manual allows a PWM-derived signal only if sufficiently filtered for smooth operation. Do not assume a raw ECU PWM signal, generic pump speed controller or CAN bus is compatible.
Does zero control voltage switch the pump off?
Integrated external brushless True Variable Speed controller uses a dedicated yellow signal wire for true analog 0–5-VDC speed control. Manual threshold is approximately 0.5 V before rising above the minimum speed floor and approximately 3.7 V for full speed. At zero signal the pump still runs at its 30–40% minimum floor; zero signal does not stop the pump. Separate manual modes permit constant full, constant low and switched low/high operation; they are not a reason to apply arbitrary voltages to an ECU analog output.
What pressure limit applies?
Current exact family page lists 60-psi continuous operation and up to 100-psi peak pressure, base plus boost. The linked shared manual instead says 90-psi continuous and a 90-psi intermittent ceiling for these exact 10.0-GPM cell variants. Obtain the limits for the actual pump/controller revision before choosing pressure; do not adopt the separate 125-psi intermittent allowance assigned to other part numbers.
Which fuels and runtime precautions are documented?
Current primary and exact shared manual identify gasoline/race gasoline, E85/ethanol and alcohol/methanol. Verify every other installed component. For continuous running beyond 30 minutes the manual recommends maintaining at least half a tank of fuel.
What is included?
One 15-gallon nominal aluminum baffled fuel cell with its filler-neck arrangement, integrated brushless 10.0-GPM nominal pump module, TVS controller and pre-pump filtration. The current exact 15-gallon specification includes a fuel-level sender. The shared manual specifies a 0–90-ohm gauge connection: zero ohms empty, 90 ohms full. A gauge or signal converter is separate; do not assume compatibility with another resistance range. Mounting straps, vehicle mounting hardware, a separate gauge, complete power/relay wiring, post-filter, regulator and complete fuel lines are not promised; the exact loose package/BOM and pre-filter media/micron specification must be confirmed.
Installation Instructions
Have a qualified installer match the actual cell, controller revision and complete circuit to the exact shared manual. Resolve the manufacturer pressure-limit conflict before operation.
- Mount the cell on a supported floor with suitable side/top support and the required straps/hardware; remove sharp contact edges and follow the applicable racing requirements.
- Route both tank vent lines outside the vehicle and confirm correct rollover/vent arrangements. Use high-pressure compatible supply/return lines and the selected fittings; the manual calls for 150-psi-minimum-rated pressure lines, which is a hose-selection requirement rather than permission to operate the pump at 150 psi.
- Plumb suitable post-filtration, the engine fuel circuit and a bypass regulator with a return to the cell. Verify fuel compatibility of all filters, hose and seals; no external component is certified by the pump's fuel list alone.
- Current primary specifies straight 12–16-VDC power and warns that nominal 16-V charging systems can run at 16–18 V and require reduction to normal 12-V charging-system levels. Power must be flat DC, not PWM; reverse polarity can destroy the controller. The exact manual diagram shows 6-AWG main supply/ground, minimum 60-A relay/fuse and 16/18-AWG control wiring; verify the actual circuit and protection with the installer.
- Integrated external brushless True Variable Speed controller uses a dedicated yellow signal wire for true analog 0–5-VDC speed control. Manual threshold is approximately 0.5 V before rising above the minimum speed floor and approximately 3.7 V for full speed. At zero signal the pump still runs at its 30–40% minimum floor; zero signal does not stop the pump. Separate manual modes permit constant full, constant low and switched low/high operation; they are not a reason to apply arbitrary voltages to an ECU analog output. Choose the documented analog or constant/switched mode and verify adequate fuel delivery through the whole engine-load range.
- The current exact 15-gallon specification includes a fuel-level sender. The shared manual specifies a 0–90-ohm gauge connection: zero ohms empty, 90 ohms full. A gauge or signal converter is separate; do not assume compatibility with another resistance range. A different gauge range requires a suitable separately verified interface, not an invented sender specification.
- For regulator setup, the manual recommends checking pressure with full pump flow so the return circuit can handle it. Resolve the actual permitted pressure, prime and inspect for leaks before starting, repair every leak and recheck after operation.
California Proposition 65 Warning
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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