Aeromotive 18638 340LPH Stealth In-Tank Fuel Pump & Hanger for 1983-97 Mu

Vehicle Fitment

• 1983-1997 Ford Mustang (EFI-equipped models with stock style in-tank fuel tank)

Features

• High-flow Aeromotive 340 LPH Stealth in-tank electric fuel pump with hanger
• CNC-machined billet aluminum hat fits stock fuel tank opening
• ORB-06 outlet and return ports for robust plumbing
• Supports performance fuel systems with AN-06 or AN-08 fittings (adapters req'd)
• Stainless steel mounting bracket for pump retention
• Durable OEM-grade convoluted supply and return lines
• Extended high-flow return reduces aeration and cavitation
• Quiet operation and long-life design for performance use

Specifications

• Brand: Aeromotive
• Part Number: 18638
• Fuel Pump Type: Stealth in-tank electric fuel pump and hanger assembly
• Flow Rate: 340 LPH (~90 GPH) typical at ~40 PSI
• Ports: ORB-06 female supply and return
• Compatible Fuel Types: Gasoline, E85
• Fuel System Style: Return style
• Max HP Support (EFI Gasoline): ~850 HP NA, ~700 HP FI
• Max HP Support (EFI E85): ~595 HP NA, ~490 HP FI
• Max HP Support (Carbureted Gas): ~1000 HP NA, ~850 HP FI
• Max HP Support (Carbureted E85): ~700 HP NA, ~595 HP FI
• Installation Type: In-tank module replacement

Included Components

• 1x Aeromotive 340 LPH Stealth in-tank fuel pump
• 1x Billet billet fuel pump hanger module
• 1x Pre-assembled fuel supply and return hoses

Product Description

The Aeromotive 18638 340 LPH Stealth In-Tank Fuel Pump & Hanger is a performance fuel delivery upgrade engineered specifically for **1983-1997 Ford Mustang (EFI)** applications where the factory fuel pump hanger and pump fall short of high-flow demands. This fully assembled unit drops into the stock fuel tank opening and replaces the weak OEM pump with a high-flow Aeromotive Stealth 340 pump mounted to a CNC-machined billet aluminum hanger hat. The assembly features ORB-06 outlet and return ports, allowing integration with AN-06 or AN-08 plumbing using appropriate adapters.

The internal design includes OEM-grade convoluted supply and return lines along with an extended high-flow return that reduces aeration and cavitation common in stock fuel pump hangers. The 340 LPH pump delivers reliable high-pressure fuel delivery with rated support up to approximately **850 HP naturally aspirated and 700 HP forced-induction** on gasoline EFI builds, with strong support figures on E85 and carbureted setups when paired with suitable regulators and plumbing.

Installation is straightforward for compatible stock-style in-tank fuel systems and does not require modification to the fuel tank (beyond fitting the hanger). This part is ideal for performance street or strip Mustangs with increased fueling demands. Note: This product **is not legal for sale or use on emission-controlled vehicles except as a direct replacement part** matching OEM specifications.