ARP Weld Bungs

2010–2025 Universal Fitment for Oil and Fuel Tanks, Radiators, Valve Covers, Manifolds, and Rear Axle Housings

Part #: 800-8113

Overview

The ARP Weld Bungs are premium-quality, CNC-machined aluminum weld-in fittings designed for a wide range of automotive applications. Whether you're customizing oil or fuel tanks, radiators, valve covers, manifolds, or rear axle housings, these bungs provide a reliable and durable solution for adding threaded ports in your vehicle's components. Crafted from high-grade materials, ARP weld bungs ensure a precise fit and long-lasting performance, making them an essential choice for enthusiasts and professional fabricators alike.

If you're involved in custom fabrication, restoration, or performance upgrades, these weld bungs allow you to create secure, leak-proof threaded connections. Their versatile design supports various fluid and sensor connections, helping you achieve a clean, professional look while maintaining the integrity of your vehicle's systems. Whether for custom oil catch cans, fuel system modifications, or radiator fittings, ARP weld bungs deliver quality and reliability.

Key Features

Designed with precision and durability in mind, the ARP Weld Bungs offer several key features that make them stand out:

• Manufactured from CNC-machined 6061 solid aluminum billet, ensuring high strength and corrosion resistance.
• Available in a variety of sizes and thread configurations to suit your specific needs.
• Outside diameter of 1.314 inches provides a compact yet robust fitting for tight spaces.
• Thread size of -8 AN compatible with a wide range of AN fittings, hoses, and adapters.
• Precision CNC machining guarantees accurate threading and smooth finish for easy welding and installation.
• Ideal for oil and fuel tanks, radiators, valve covers, manifolds, and rear axle housings.
• Lightweight construction adds minimal weight to your custom fabrication projects.
• High-quality aluminum material ensures excellent thermal and mechanical stability under demanding conditions.
• Designed for professional-grade weld-in applications, providing a secure and leak-proof seal.

Construction & Design

The ARP Weld Bungs are meticulously CNC-machined from 6061 solid aluminum billet, a material renowned for its strength, corrosion resistance, and ease of fabrication. The precision machining process ensures that each bung features clean, accurate threads and a smooth exterior surface, facilitating seamless welding and installation. The compact outside diameter of 1.314 inches makes these bungs suitable for tight spaces, while the robust construction guarantees durability under high-pressure and high-temperature conditions commonly encountered in automotive systems.

The design incorporates a threaded port compatible with -8 AN fittings, making them versatile for various fluid transfer applications. The aluminum material not only offers excellent thermal conductivity but also helps reduce weight without sacrificing strength. These weld bungs are ideal for custom fabrication projects where precision, reliability, and longevity are critical.

Performance & Application

While these weld bungs are not performance-enhancing components per se, their quality construction ensures a secure, leak-proof connection that supports the integrity of your custom systems. They are perfect for creating custom oil catch cans, fuel system modifications, radiator fittings, or any application requiring a durable threaded port. Their high-quality aluminum construction ensures they withstand the rigors of automotive environments, including exposure to heat, vibration, and fluids.

Installation & Fitment

Installing the ARP Weld Bungs requires welding expertise. The bungs are designed to be TIG-welded into your chosen component, providing a strong, permanent connection. No additional machining or modifications are typically necessary beyond preparing the mounting surface. Ensure the area is clean and free of contaminants before welding for optimal results. Once welded, the threaded port can be used with compatible -8 AN fittings, hoses, or adapters to complete your custom setup.

• Weld-in installation process requires basic welding skills and equipment.
• No cutting, drilling, or additional modifications are necessary beyond preparing the weld area.
• Ensure proper welding techniques to prevent leaks and ensure structural integrity.

What's Included

• One CNC-machined aluminum weld bung with -8 AN threaded port
• High-quality finish ready for welding

Ideal For

• Custom oil and fuel tank modifications
• Radiator and cooling system fittings
• Valve cover and manifold ports
• Rear axle and differential breather or vent fittings
• Professional fabricators and DIY enthusiasts working on custom automotive projects

Emissions Note

This product is intended for off-road, racing, or show use only and may not be legal for use on pollution-controlled vehicles in all jurisdictions. Please verify local regulations before installation.