Description
The Mishimoto Weld-On Bung (MMEXH-WB18-SS) is a precision-engineered, 304 stainless steel fitting built with an M18x1.5 thread for DIYers who need to add gauges or sensors to virtually any vehicle system. This flat-style bung is designed to be welded directly onto tubing, piping, or housings, giving fabricators a clean, permanent mounting point for boost gauges, wideband O2 sensors, and other performance instrumentation.
As part of Mishimoto’s Fabrication lineup, this weld-on bung offers universal vehicle fitment, meaning it isn’t tied to a specific make or model — it can be welded onto exhaust, intake, or other systems wherever an M18x1.5 port is needed. Whether you’re building a custom exhaust setup, adding boost monitoring, or wiring in a wideband O2 sensor, the bung’s robust 304 stainless steel construction and straightforward weld-on installation make it a reliable choice for enthusiasts and professional fabricators alike. Mishimoto also backs the bung with its signature Lifetime Warranty, so it becomes a permanent, trustworthy part of your build.
Vehicle Applications
This Mishimoto Weld-On Bung is designed with universal vehicle fitment, meaning it is not limited to a particular make, model, or year. Instead, its M18x1.5 thread and weld-on design allow it to be installed onto various vehicle systems on virtually any car, truck, or project build where a fabricator needs to add a boost gauge, wideband O2 sensor, or similar component.
Features
- Universal vehicle fitment, allowing for additional components onto various vehicle systems
- Precision M18x1.5 metric thread size
- Constructed from durable 304 stainless steel
- Flat-style bung design suited for weld-on installation
- Simple DIY weld-on installation process
- Backed by Mishimoto’s signature Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMEXH-WB18-SS
- Product Type: Fabrication
- Material: 304 Stainless Steel
- Type: Flat
- Thread Size: M18 – 1.5 (Metric)
- Includes: (1) Weld-on Bung, Mishimoto Lifetime Warranty
Frequently Asked Questions
What thread size does the Mishimoto Weld-On Bung use?
It features an M18x1.5 metric thread.
What material is the MMEXH-WB18-SS bung made from?
It is constructed from 304 stainless steel.
What is this bung used for?
It’s designed for installing boost gauges, wideband O2 sensors, and other performance upgrades.
Does this bung fit a specific vehicle?
No, it offers universal vehicle fitment, allowing for additional components onto various vehicle systems on any vehicle.
How is it installed?
It is installed via a DIY weld-on process.
Does it come with a warranty?
Yes, it is backed by Mishimoto’s signature Lifetime Warranty.
⚠ WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
