Vibrant Performance 10289 Oil Restrictor Fitting, -4 AN to 1/8 in NPT, Black Anodized Aluminum

The Vibrant Performance 10289 Oil Restrictor Fitting is designed to help control oil flow in turbocharger, engine lubrication, and other custom automotive applications. This kit connects a -4 AN line to a 1/8 in NPT port, providing a practical solution when precise oil restriction is required in a compact installation. Its hex-head design supports secure tightening and easier service during assembly or maintenance.
Constructed from lightweight aluminum with a black anodized finish, the Vibrant Performance 10289 offers corrosion resistance and a clean, professional appearance. The fitting incorporates stainless steel restrictor jets for dependable performance and consistent oil-flow management. The interchangeable jet design allows the fitting to be configured for application-specific oil delivery requirements, making it suitable for performance builds, turbo systems, and custom fluid-routing projects.
Installation is supported by the integrated Allen-key interface, which helps provide controlled tightening in confined spaces while reducing the need for bulky tools. The -4 AN connection is commonly used with performance oil lines, while the 1/8 in NPT male thread interfaces with compatible engine, turbocharger, and plumbing components. Verify thread type, line size, and required restriction before installation to ensure proper fitment and system operation. The Vibrant Performance 10289 is supplied as a complete oil restrictor fitting kit and is not air restricted.

Features:

• -4 AN to 1/8 in NPT oil restrictor fitting

• Black anodized aluminum body for lightweight durability and corrosion resistance

• Stainless steel restrictor jets for dependable oil-flow control

• Hex-head design with Allen-key interface for convenient installation

• Suitable for turbocharger, engine lubrication, and custom automotive oil-line applications

• Kit configuration supports application-specific restrictor selection

• Not air restricted