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HPS Performance Products AN-4 Weld-on 304 Stainless Steel Bung for Custom Fabrication
$8.09

So, you’re diving into a custom project and need some solid weld bungs? Let me tell you about these HPS stainless steel AN-4 Weld Bungs. Made from 304 stainless steel, they’re tough enough to handle whatever you throw at them. They’re designed for 37-degree AN flare fittings, which is pretty standard for a lot of setups.

One of the cool things about these bungs is the raised feature on the back. It makes welding a breeze because it keeps everything aligned. No more fumbling around trying to get the perfect angle—just weld it up and move on. Plus, they come in a raw finish, which means less prep work for you. Just clean them up a bit, and you’re good to go.

  • Size: AN-4
  • Material: 304 stainless steel
  • Weld-on: Yeah, this is a proper weld bung with a male 37-degree flare.
  • Versatile: Perfect for all sorts of custom projects—think turbo oil returns, anti-lag systems, coolant lines, and even fuel tanks.
  • Fluid Compatibility: These bungs can handle water, coolant, air, oil, hydraulic fluid, and most fuels. So, no worries there!

Whether you’re building a catch can or just need a reliable fitting for your oil tank, these bungs have you covered. They’re practical, durable, and straightforward—just how it should be when you’re knee-deep in a project. Grab a few and see how they fit into your next build!

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About HPS Performance Products

HPS Performance Products is a leading manufacturer of aftermarket performance parts, fabrication components, and silicone hoses. HPS serves a number of different industries, including automotive, aerospace, construction, commercial truck/bus, marine, agricultural, turbo diesel, off-road, performance racing, general manufacturing, and water treatment. The company’s ability to fabricate custom-shaped multiply silicone hoses make it ideal for a wide range of applications. The multiply carcass makes HPS’ hose perfect for coolant and turbocharged pressure applications while the fluoro-silicone-lined hoses make it safe to be used with petroleum-based oil and fuel.

HPS Performance Products is committed to meeting its original goals of producing quality parts at competitive pricing and providing customer service responses in a personal, timely manner. All HPS products have been thoroughly tested on the dyno and track, and meet or exceed SAEJ20 standards. The HPS staff has solid expertise in the silicone hose department, which allows them to deliver standard size silicone hoses with same-day shipping. HPS’ highly skilled and knowledgeable team, paired with the latest state-of-the-art technology, ensures the brand’s continued success and reputation as a premier manufacturer in the industry 

HPS Quality Silicone Hoses

HPS Performance Products specializes in and is best known for manufacturing multi-application silicone hoses. HPS silicone hoses are carefully crafted from only the highest quality 4-ply reinforced high-temperature material. The hoses are available in the following varieties: straight coupler, 1-foot tube, 3-foot coolant tube, charge air cooler hose (CAC), hump coupler, reducer couple her, 45-degree elbow coupler and reducer, and 90-degree elbow coupler and reducer.

HPS Performance Products also carries performance silicone vacuum hoses and silicone heater hoses. You can choose silicone hoses in both standard inch and hard-to-find metric sizes. Stainless steel T-bolt clamps are available to match with the silicone hoses as well. In order to meet the high demand and shorten the turnaround time for its silicone hoses, up to 90 percent of the product is already in stock and ready to ship or pick up from HPS authorized dealers like Vivid Racing. 

HPS Performance Products at Vivid Racing

Vivid Racing carries a comprehensive lineup of HPS Performance Products for a number of different makes, models, and applications. Our extensive inventory of HPS parts includes aluminum tubing, cold air and short ram intakes, vacuum lines, hoses and clamps, intercooler pipes, radiator caps, and much more! If you have any questions regarding the items listed above or have fitment concerns, please contact our expert sales team at (480) 966-3040. We are here to help you through the entire purchase process and make it a pleasant experience.

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