Home Aeroflow AF991SS Weld Bung O2 Oxy Sensor S/S M18x1.5mm Thread All Sensors

Aeroflow AF991SS Weld Bung O2 Oxy Sensor S/S M18x1.5mm Thread All Sensors

NOW $26.00
Or 4 interest-free payments of $6.50
In stock at 1 of our locations
🚛 Free NZ shipping
🔒 12 month warranty on all parts
NZ WOF compliant
🔧 Fitting available NZ wide

Weld-On O2 Sensor Bung




Stainless Steel

Aeroflow Performance features a range of different styles of high-quality weld on bungs and plugs to suit any M18 x 1.5mm oxygen sensors.  The oxygen sensor bung is a must have accessory for installing your wide-band oxygen sensor to your exhaust pipe. Especially If you are making custom headers, or just require a O2 Sensor in your system for data logging, engine management or test equipment. Works with Bosch LSU4.2, Bosch LSU4.9 and Aeroflow Performance (AF49-7501) wideband oxygen sensors. This range of bungs and plugs are available in three different materials Zinc Coated Steel, CS1030 Steel and 304 Stainless Steel to suit any application.

Shipping Information

Most orders land in 5–12 business days. We'll keep you updated at every step of the journey.


The Kren Bits journey:

  • Order received — Day 0
  • With fulfilment — Day 1–2
  • Heading to courier — Day 2–4
  • Shipped — Day 3–7
  • Almost there — Day 5–10
  • Delivered — Day 5–14

Where your part ships from:

Your order ships from the closest warehouse with available stock across our six-warehouse network — NZ, AU, TH, UK, US, and CN.


We email you at every real milestone — order received, with fulfilment, heading to courier, shipped, almost there, delivered. No chasing, no vague waits.


For more details, visit our Track Your Order page.

Product Enquiry

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