Delphi FA10039 Fuel Pump Tank Seal

Fuel Pump Tank Seal for Mazda Miata

Delphi FA10039 is a black polymer fuel pump tank seal made for a flat sealing surface with an oval rim shape. It measures 151 mm inside diameter, 178 mm outside diameter, and 3.1 mm thickness for a precise tank-to-pump seal on select Mazda Miata applications.

Compatible with 1990-1997 Mazda Miata and 1999-2005 Mazda Miata fuel system service, this seal supports a secure fit where the fuel pump module meets the tank. Delphi’s OE-focused fuel delivery background helps ensure the part aligns with the demands of routine fuel system repair.

• Part number: FA10039
• Material: polymer
• Color: black
• Flat seal type with oval rim shape
• Inside diameter: 151 mm / 5.944 in
• Outside diameter: 178 mm / 6.984 in
• Thickness: 3.1 mm / 0.122 in

Detailed Product Overview

Delphi FA10039 is a fuel pump tank seal for Mazda Miata models that use the listed tank seal dimensions and oval flat-seal profile. It is built from polymer to provide a consistent sealing surface during fuel pump service, helping maintain the interface between the tank and pump assembly. This part number, FA10039, is a direct-fit style sealing component for select Miata fuel delivery repairs.

This part cross-references Spectra Premium LO157 for the same application. It also cross-references 4060046, BP4W-60-962, and J004-60-962.

Common Repair Uses

• Fuel odor at the tank opening after pump service
• Seepage around the fuel pump module seal area
• Damaged, flattened, or aged tank seal material
• Seal replacement during fuel pump or sender maintenance
• Restoring a proper seal on Mazda Miata fuel tank service

Installation Notes and Tips

Confirm the seal dimensions, rim shape, and seal type before installation. Clean the tank and pump mounting surfaces thoroughly so the polymer seal seats evenly. Verify the fuel pump module is positioned correctly before tightening the assembly to help prevent leaks. For fitment verification, use the vehicle application list for 1990-1997 Mazda Miata and 1999-2005 Mazda Miata.

Quality Assurance

Delphi is a Tier 1 supplier to major global vehicle manufacturers and has decades of experience in fuel pumps and fuel delivery parts. The brand also supports technicians with training resources and a technical hotline for product and service guidance.