K-Tuned 3/8 EFI to 6AN Fitting - Threaded Locking Clip-KTD-38E-6AN

Description

K-Tuned 3/8 EFI to 6AN Adapter Fitting with Threaded Locking Clip

Easily convert your OEM EFI fuel system connections to a custom AN line setup with this universal 3/8 EFI to 6AN adapter fitting by K-Tuned. Designed for a leak-free seal under high pressure, this adapter features a threaded locking clip for secure connection and uses dual internal O-rings.

Features:

• Converts 3/8” EFI male fitting to 6AN male fitting

• Threaded locking clip for reliable, vibration-resistant connection

• Dual internal O-rings for a high-pressure leak-free seal

• CNC-machined for durability and precision

• Universal application—ideal for fuel rails, sending units, and fuel pump hangers

• Compatible with returnless fuel systems on various Honda/Acura models

Notes on EFI Sizes:

• 1/4" EFI fittings: 01-15 Civic firewall, RSX firewall

• 5/16" EFI fittings: 96-00 Civic sending unit, K-Series fuel rail (01-15 Civic, 02-06 RSX, 04-12 TSX)

• 3/8" EFI fittings (this adapter): 8th Gen Civic Si sending unit, RSX sending unit, Flex Fuel sensor

How to Confirm Your EFI Fitting Size:

Use a 1/4", 5/16", or 3/8" wrench to measure the line thickness. This adapter fits 3/8” EFI fittings.

Upgrade your fuel system quickly and securely with this K-Tuned EFI to AN adapter!