Description
Robinair 16916 genuine OE oxygen sensor — AC1234-4 & AC1234-9
The genuine Robinair factory OE oxygen sensor (part #16916) for Robinair R-1234yf recovery, recycling, and recharging machines. It's the sensor behind your machine's refrigerant identifier — the part that tells pure R-1234yf from contaminated gas. When it wears out, the machine locks out; a fresh 16916 restores full function and clears the “O2 Sensor Expired” warning.
Made-in-USA aftermarket sensor — exact fit, a fraction of the price
Need the same function for far less? Our Made-in-USA aftermarket O₂ sensor is an exact fit for the same AC1234-4 & AC1234-9 machines and clears the same “O2 Sensor Expired” lockout — at a much lower cost than genuine OE. See the aftermarket sensor →
The brain behind refrigerant identification
Robinair's R-1234yf machines run a mandatory refrigerant-identification check before recovery. The oxygen sensor is what makes that check possible — and because it's an electrochemical component, it naturally depletes with use.
When the sensor reaches the end of its life, the machine's software initiates a lockout to prevent inaccurate readings, and the display shows an “O2 Sensor Expired” or “O2 Sensor Warning” message. Installing a fresh sensor immediately restores full functionality so the station can identify refrigerant and recover again.
Factory accuracy, factory fit
Genuine OE accuracy
The factory Robinair 16916 sensor, calibrated to keep your machine reading refrigerant purity correctly.
Meets SAE J2843
Supports the machine's compliance with the SAE J2843 standard for R-1234yf recovery and purity.
Clears the lockout
Eliminates “O2 Sensor Expired” and “O2 Sensor Warning” errors and returns the station to service.
Built to last
Industrial-grade construction for the high-use environment of a busy automotive shop.
Fast swap
Designed for a quick, low-tool replacement to minimize equipment downtime.
Protects your work
Accurate identification protects your equipment and your customers' vehicles from cross-contamination.
Robinair R-1234yf machines
Fits the integrated refrigerant identifiers on these Robinair R-1234yf stations. Confirm your machine model and sensor part number before ordering.
| Brand | Machine / identifier |
|---|---|
| Robinair | AC1234-4 · AC1234-4SL · AC1234-4-230 |
| Robinair | AC1234-6 · AC1234-9 |
| Robinair | 16990 / 16995 refrigerant identifier |
Part & interchange numbers
| Source | Part number |
|---|---|
| Robinair (OE) | 16916 |
| Neutronics / Bacharach | 1-16-1013-00-2 |
| Mahle / RTI | 022-80174-00 |
Technical details
O₂ sensor FAQ
What is the Robinair 16916 sensor?
Is there a cheaper alternative?
Which machines does it fit?
Why did my machine lock out?
How hard is it to replace?
Genuine OE — or save with the aftermarket
Order the genuine Robinair 16916 here, or choose our Made-in-USA aftermarket exact-fit sensor to save. Not sure which sensor your machine takes? Call and we'll confirm.
Add to cart ↑ See the aftermarket sensorRobinair® and all manufacturer names and part numbers are trademarks of their respective owners and are used for identification and cross-reference purposes only. Confirm your machine model and required sensor part number before ordering.
