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Russell

YBLOCK ADAPTER 3/8 SAE QUICK DISCONNECT FEMALE (2) 3/8 SAE QD MALE BLACK

$61.08

SKU: R00K 644163

In Stock
In Stock
Ships by Jun 15
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Russell Performance 644163 is a Y-block adapter designed for electronic fuel injection (EFI) systems. It features 3/8 in. female quick-connect and two 3/8 in. male hose barb attachments, with a Y-configuration for splitting fuel lines.

Constructed from black anodized aluminum, this fitting is precision-machined for secure thread engagement and a positive seal, even at maximum operating pressures. It is sold individually.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandRussell
Part NumberR00K 644163

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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