Billet Aluminum Thru-Frame Bulkhead Fitting - 3/8 NPT

Billet Aluminum Thru-Frame Bulkhead Fitting - 3/8 NPT - #160-110375NPT
The GSI Billet Aluminum Thru-Frame 3/8" NPT Fitting is engineered for builders who demand both high-performance function and flawless style. CNC-machined from premium billet aluminum and finished in a clear anodize, this fitting is built to resist corrosion while adding a high-end, polished touch to any chassis.

Measuring 3 inches in length and requiring a 7/8" hole, it is designed to integrate seamlessly with most frame rails. The dual 3/8" NPT threaded ports provide a versatile solution for fuel delivery or air suspension plumbing. By routing your lines directly through the frame, you protect them from road debris, eliminate clutter, and achieve a professional, show-quality finish.

The GSI Advantage

• Premium Billet Aluminum – Lightweight, corrosion-resistant, and CNC-machined for absolute precision.

• Clear Anodized Finish – Provides long-lasting durability and a sleek, professional appearance.

• 3″ Length & 7/8″ Hole Requirement – Engineered to fit the majority of chassis frame rail applications.

• Dual 3/8″ NPT Threaded Ports – Versatile utility for fuel lines, air suspension, or brake plumbing.

• Clean, Protected Routing – Pass lines through the frame to prevent mechanical damage and streamline your build.

Key Features & Benefits

• Universal Fit – Ideal for C10 trucks, classic car restorations, hot rods, and race cars.

• Versatile Plumbing – Compatible with both air and liquid transfer systems.

• Secure Installation – Each unit includes a dedicated nut for a tight, vibration-resistant fit.

• Show-Quality Aesthetic – Replaces messy external line clamps with a hidden, internal routing solution.

Design & Construction

• Material: CNC-Machined Billet Aluminum

• Finish: Clear Anodized

• Dimensions: 3" Length

• Installation: Requires a 7/8" diameter hole through the frame rail

• Port Size: Dual 3/8" NPT

What’s Included

• (1) Billet Aluminum Thru-Frame Fitting

• (1) Mounting Nut

At GSI Machine & Fabrication, we offer a one-year warranty on all manufactured parts, covering defects upon inspection. However, we are not liable for personal or property damages resulting from misuse of our products. Note that warranties for non-manufactured parts, such as shocks or ball joints, must be handled directly with the part’s manufacturer.

Orders may be canceled before shipment, except for special-order and custom items, such as chassis products and air ride suspension. Refunds for eligible returned items will exclude shipping costs and may incur additional fees. For cancellations or issues with orders, contact our customer support at 1 (877) 951-1890 or sales@gsimfab.com.

Customers are responsible for all customs fees, duties, and taxes on international orders. Once your package is shipped, we are not liable for damage, theft, or loss during transit. Please inspect your delivery promptly and report any issues within 48 hours. For international shipments, local policies may cause delays, and additional documentation may be required. Always ensure shipping details are accurate to avoid additional costs.