ARP Weld Bungs

3/8in. NPT Steel Weld Bung for Automotive Applications

Part #: 800-8202

Overview

The ARP Weld Bungs are premium-quality, precision-machined components designed for a variety of automotive and industrial applications. Crafted from high-grade materials, these weld-in bungs provide a reliable and durable solution for adding threaded ports to oil or fuel tanks, radiators, valve covers, manifolds, and rear axle housings. Whether you're customizing your vehicle or performing repairs, these bungs ensure a secure and professional fit, supporting your performance and fabrication needs.

Ideal for enthusiasts, fabricators, and professional mechanics, ARP weld bungs help you create custom mounting points or add sensors, fittings, and other components with confidence. Their CNC-machined construction guarantees precise threading and a clean finish, making them suitable for high-stress environments where durability and accuracy are critical. These bungs are perfect for custom builds, race cars, off-road vehicles, or any project requiring a high-quality weld-in threaded port.

Key Features

ARP Weld Bungs are engineered with a focus on quality, precision, and versatility. Key features include:

• Manufactured from CNC-machined 6061 solid aluminum billet or 1018 mild steel, offering excellent strength and corrosion resistance.
• Available in a 3/8 inch NPT thread size, compatible with a wide range of fittings and sensors.
• Designed with a flange outside diameter of 1.250 inches, providing a secure weld surface and proper sealing.
• Precisely machined threads ensure a tight fit and easy installation, reducing the risk of leaks or failures.
• Suitable for welding into oil or fuel tanks, radiators, valve covers, manifolds, and rear axle housings, among other components.
• Built to withstand high temperatures, pressures, and harsh operating conditions, making them ideal for performance applications.
• Available in steel or aluminum options to suit your specific needs for weight savings or strength.
• Manufactured with tight tolerances to ensure consistency and reliability across production runs.
• Designed for easy welding and integration into custom fabrication projects, supporting a wide range of automotive and industrial uses.

Construction & Design

The ARP Weld Bungs are crafted with meticulous attention to detail, utilizing CNC machining processes to achieve precise dimensions and high-quality finishes. The choice of materials—6061 aluminum billet or 1018 mild steel—provides a balance of strength, machinability, and corrosion resistance. The flanged design ensures a secure weld surface, facilitating a strong and leak-proof installation. These bungs are engineered to withstand the rigors of high-performance environments, including elevated temperatures and pressures, making them a dependable choice for demanding applications.

Performance & Reliability

Designed for durability and precision, ARP weld bungs support your custom fabrication projects by providing a reliable threaded port that maintains integrity under stress. Their high-quality construction ensures consistent threading and a secure fit, reducing the risk of leaks or failures. Whether used in fuel systems, oil catch cans, or radiator modifications, these bungs deliver dependable performance and long-lasting service life.

Installation & Fitment

Installing the ARP Weld Bungs is straightforward for experienced fabricators and mechanics. The process involves welding the flange into your chosen component, such as a tank or manifold, ensuring a clean and secure seal. No additional machining or threading is required beyond the initial installation. Proper welding techniques should be employed to achieve optimal strength and leak resistance. These bungs are designed to integrate seamlessly into your custom fabrication projects, providing a professional finish and reliable operation.

• Weld-in installation into oil or fuel tanks, radiators, valve covers, manifolds, or rear axle housings.
• No cutting, drilling, or additional modifications are necessary beyond welding.
• Ensure proper welding procedures are followed for maximum strength and leak prevention.

What's Included

• One ARP Weld Bung with 3/8 in. NPT thread size
• High-quality CNC-machined steel or aluminum construction
• Welding flange with outside diameter of 1.250 inches
• Installation instructions (if provided by ARP or included with the product)

Ideal For

This weld bung is perfect for automotive enthusiasts, race car builders, off-road adventurers, and professional fabricators who need a reliable threaded port for custom fuel, oil, or coolant systems. Its high-quality construction makes it suitable for high-pressure and high-temperature environments, ensuring long-term durability and performance.