Fitting - Union, Restrictor, 3/8 x 1/2

The Freightliner 05-23345-001 union restrictor fitting offers dependable flow control for fuel or air systems requiring a regulated passage. Its 3/8 x 1/2 configuration is engineered to match Freightliner line specifications and maintain sealing integrity under vibration and pressure changes. Constructed from durable materials and machined to OEM dimensions, this restrictor union ensures consistent performance and helps prevent over-pressurization or unrestricted flow that could lead to system faults.

Freightliner Part No: 05-23345-001

$3.81

Specifications

Freightliner part 05-23345-001 is a precision restrictor union fitting designed for systems that require controlled or metered flow, commonly found in fuel delivery and air management circuits. With a 3/8 x 1/2 configuration, this union provides a secure connection point between lines while incorporating a built-in restriction to prevent excessive flow rates. Its durable brass construction resists corrosion, thermal cycling, and mechanical stress, making it ideal for commercial truck environments. Replacing worn fittings helps ensure proper system behavior and long-term reliability.

Weight

0.48

Compatibility

Freightliner M2 Business Class — various years

Freightliner Cascadia — various years

Freightliner Columbia — various years

Freightliner Century Class — various years

Freightliner vocational trucks sharing similar fuel/air line assemblies