OneFastShop 7.89mm Dual Quick Connect Fuel Fitting for 39mm Fuel Pumps (Walbro 450/525/535 Compatible)

The OneFastShop 7.89mm Dual Quick Connect Fuel Fitting is a precision-engineered solution for splitting fuel lines directly from any 39mm fuel pump outlet, including popular models such as the Walbro 450, 525, and 535.

This fitting provides dual 7.89mm quick-connect ports from a single pump outlet, eliminating the need for adapters, hose clamps, or external Y-blocks. Ideal for high-performance and high-volume fuel systems, it supports dual-feed, return-style, and other custom configurations.

Constructed from CNC-machined 6061 aluminum with a black anodized finish, this fitting offers strength, precision, and long-term resistance to corrosion. The included Viton O-ring and locking clip ensure a secure, leak-free connection even under high fuel pressure.

Compatible with all fuels, including ethanol (E85), this fitting is fully reusable and requires no permanent pump modification, making it a versatile solution for performance builds.

Key Features

• Provides dual 7.89mm quick-connect ports from a single 39mm fuel pump outlet

• Compatible with any 39mm pump, including Walbro 450, 525, 535

• CNC-machined from 6061 aluminum for durability and precision

• Black anodized finish resists corrosion and supports ethanol fuels

• Integrated Viton O-ring and locking clip for secure, leak-free operation

• Works with all fuels, including E85

• Reusable: Yes – designed for multiple installations

• Fuel pump not included

Why Choose OneFastShop?

• Clamp-Free Install – OEM-style fitment without hose clamps

• Leak-Free Performance – Viton seal prevents leaks under high pressure

• Universal 39mm Fitment – works across Walbro and other 39mm pumps

• Race-Proven Reliability – ethanol-ready, built for street and track use