Oxygen Sensors
Lambda sensing for fuel control
Oxygen Sensors
Exhaust oxygen sensors that measure residual oxygen in exhaust gases to let the ECU optimise fuel injection and emissions.
The oxygen sensor closes the loop on air-fuel ratio. Our sensors use a heated zirconia element that produces a voltage proportional to the difference in oxygen between exhaust gas and ambient air, giving the ECU the signal it needs to trim injection.
Available as heated lambda sensors for closed-loop control and as wideband-style units for SCR applications, with connector and harness matched to the OE specification.
Representative series and where they fit
Representative series, not an exhaustive price list. Series codes are our internal naming; the connector and range cells are what a buyer actually checks first. For any OE number you fit we will return the exact SHR equivalent with its own datasheet.
| Series | Sensing element | Range | Connector | Typical fitment |
|---|---|---|---|---|
| O2-1xx | Heated zirconia, narrowband | λ 0.7 – 1.3 | 4-pin, M18×1.5 | Pre-catalyst, gasoline |
| O2-2xx | Heated zirconia, narrowband | λ 0.7 – 1.3 | 4-pin, M18×1.5 | Post-catalyst, diesel |
| O2-3xx | NBO2 wideband linear | λ 0.1 – 100 | 5-pin, M18×1.5 | Lean-burn & turbo gasoline |
OE numbers in demand
Numbers harvested from current after-market demand in our categories, with the application the demand carried. This is a statement of what we cross-reference routinely — not a fitment guarantee. Send your OE number and we will confirm coverage and return the datasheet before any order is placed.
| OE number | System / family | Application | Verified |
|---|---|---|---|
| 0 258 017 025 | Bosch | LSU 4.9 wideband — VW, Audi, Ford, Chevrolet | |
| 0 258 986 602 | Bosch | Mercedes-Benz | — |
| 0 258 006 185 | Bosch | Citroën / Peugeot | — |
| 89465-60300 | Toyota | V6 applications | — |
| 89467-33040 | Toyota | Rear sensor | — |
| 39210-04000 | Hyundai/Kia | Upstream lambda | — |
| 4326874 | Cummins | CUMMINS | — |
| 4326769 | Cummins | CUMMINS | — |
| A0101531628 | Mercedes | MERCEDES | — |
| 0281004107 | Bosch | Golf, Man | — |
| 021906265AG | Chrysler | Vw | — |
Why distributors buy from SHR
Heated zirconia element
Stable voltage output with fast warm-up, so closed-loop control engages before the engine reaches normal operating temperature.
Two output variants
Standard lambda for stoichiometric control and wideband-style for SCR applications.
Calibrated voltage output
Each unit's offset and gain are measured at the bench and recorded per serial number.
Rugged ceramic body
High-temperature ceramic housing rated for continuous exhaust service.
OE connector match
Connector and harness matched to your target engine.
Fitment coverage
- Diesel fuel-injection control
- SCR emission systems
- Light and heavy duty diesel engines
- Diesel generators
- Engine management ECUs
- Aftermarket emissions upgrades
Send your OE numbers today
Exhaust oxygen sensors that measure residual oxygen in exhaust gases to let the ECU optimise fuel injection and emissions.