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Howling Moto

Drag Specialties Weld-In O2 Sensor Bung – Honda Grom, Monkey, Z125 & More

Drag Specialties Weld-In O2 Sensor Bung – Honda Grom, Monkey, Z125 & More

$34.76 USD
$34.76 USD $34.76 USD
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Size

Available on backorder

Shipping & returns

Shipping is calculated at checkout by size and destination. Most in-stock gear ships within a few business days; large freight items (campers, racks, bumpers) are made to order. Wrong fitment? Send it back within 30 days — we'll help you find the part that does fit.

Fitment & build help

Not sure if this fits your platform? Tell us your year, make, model, and trim — we'll confirm before you order. For bigger builds, we'll help you plan the full stack.

Warranty

Every product on this site ships through authorized channels with full manufacturer warranty. If something breaks in normal use, we'll help you get it resolved.

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Drag Specialties Weld-In O2 Sensor Bung – Universal Exhaust Fitting

Add an oxygen sensor port to any custom or aftermarket exhaust system with the Drag Specialties Weld-In O2 Sensor Bung. Made in the USA, this weld-in fitting is the clean, professional solution for builders and tuners who need to integrate an O2 sensor into a pipe that doesn’t have one — whether you’re running a standalone ECU, a wideband controller, or need to retain emissions compliance on a custom exhaust build.

Features

  • Weld-In Design – Permanently mounts to any exhaust pipe for a clean, leak-free O2 sensor installation
  • Universal Fitment – Compatible with standard O2 sensor thread sizes used across most motorcycle and mini bike exhaust systems
  • Made in the USA – Quality construction from Drag Specialties, a trusted name in motorcycle hardware

Common Uses

  • Custom exhaust builds requiring O2 sensor integration
  • Aftermarket pipe installations on fuel-injected mini bikes
  • Wideband AFR controller setups
  • ECU tuning builds (e.g., aRacer, Bazzaz, Power Commander)

Compatibility

  • Honda Grom – All Years (OG, SF, JC92, 2025+)
  • Honda Monkey 125 (1st Gen & 2022+)
  • Kawasaki Z125 Pro
  • Kawasaki KLX110
  • Honda CRF110 (2019+)
  • TNT135 and other mini bike platforms with compatible exhaust tubing

  • Ships from San Diego

    We ship from our San Diego dealer network. Most in-stock gear goes out within a few business days — shipping's calculated at checkout by size and destination.

  • Wrong fitment? We make it right.

    If a part doesn't fit your platform the way it should, send it back. We handle the return and find you the part that does.

  • Authorized dealer support

    Every product moves through proper channels. Full manufacturer warranty, real tech support — no gray-market headaches.