Products
Browse the catalogue by vehicle system. Application data and availability vary by part; send the full OE number and vehicle details so we can check whether a match is available before quoting.

NOx Sensors
Diesel SCR emission controlHeated NOx sensors for urea-SCR systems in light- and heavy-duty diesel vehicles, built to replace OE ECU-critical emission sensors.
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DEF / AdBlue Level Sensors
Urea tank level for SCR systemsTank-mounted level sensors for AdBlue/DEF tanks — capacitive and resistor-based designs, matched to OE ECU expectations.
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Fuel Level Sensors
In-tank sending units, gauges and level sensorsIn-tank sending units, float gauges and gauge modules for petrol and diesel tanks, matched to the OE resistance map and connector geometry.
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Expansion Tanks & Level Sensors
Cooling-system coolant controlCooling-system expansion tanks that retain coolant as it heats and expands, with integrated level sensing for dashboard indication.
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Electronic Pressure Sensors
MEMS pressure for fuel, air and oilHigh-precision MEMS pressure sensors for fuel, air, oil and hydraulic systems, calibrated to defined tolerances on our own test benches.
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Temperature Sensors
Coolant, oil, exhaust and fuel temperatureMounted along the fuel delivery system and engine bay, these give the ECU and driver real-time feedback on coolant, oil, exhaust and fuel-system temperature.
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Oxygen Sensors
Lambda sensing for fuel controlExhaust oxygen sensors that measure residual oxygen in exhaust gases to let the ECU optimise fuel injection and emissions.
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TPMS Sensors
Tire pressure monitoringTPMS sensors warn the driver as soon as one or more tires become significantly under-inflated — a required fitment on many markets.
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ABS Wheel Speed Sensors
Wheel-end speed & rotation detectionHall-effect and passive wheel speed sensors for ABS, ESP/ESC and traction control, built as direct OE replacements with matched tooth-count response.
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Exhaust Gas Temperature Sensors
Exhaust & aftertreatment temperatureHigh-temperature exhaust gas sensors for DPF, SCR, turbo and turbo-aftertreatment circuit control, PT1000 and thermocouple variants.
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Crankshaft & Camshaft Position Sensors
Engine synchronisation & timingHall-effect crankshaft and camshaft position sensors for fuel injection timing, ignition sequencing and variable valve timing on petrol and diesel platforms.
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Mass Air Flow (MAF) Sensors
Hot-film air-mass metering for petrol and dieselHot-film and hot-wire air-mass sensors measure intake air for engine-load calculations. Match the housing, connector, calibration and vehicle application before ordering.
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Manifold Absolute Pressure (MAP) Sensors
Load measurement for speed-density and turbo systemsAbsolute pressure, ratiometric output, OE-matched range — the sensor that decides how much fuel a speed-density engine gets.
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Oil Pressure Sensors & Switches
The reading that stops an engine before it seizesSwitch or sender, fixed or variable, for every engine family we cross — with the thread, taper and warning threshold the OE part uses.
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Fuel Pressure Sensors
Tank, low-pressure loop and common-rail pressureFrom tank delivery to 2 500 bar rail pressure — ratiometric output, fuel-compatible diaphragms, OE-matched ranges.
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Knock Sensors
Detonation detection that the ignition system trustsResonant and broadband piezo sensors with OE-matched frequency and sensitivity — because ignition timing follows this signal.
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Brake Pad Wear Sensors
The warning loop a disc brake cannot do withoutLead lengths, clips and connector patterns matched to the OE pad — because a wear loop that does not reach is a warning that never arrives.
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DPF Differential-Pressure Sensors
Diesel particulate-filter pressure monitoringCompares pressure before and after the filter. Correct range, ports and calibration depend on the vehicle application; confirm by OE number before quoting.
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Particulate Matter (PM) Sensors
Selected diesel aftertreatment systemsUsed downstream of the DPF on selected applications. Check whether the vehicle uses a PM sensor and its separate control unit before sourcing.
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Ammonia (NH3) Sensors
SCR ammonia-slip sensingNH3 sensor control modules for Euro 6 diesel aftertreatment. 15 OE cross-references and 15 housing styles — confirm the style by number and photo before ordering.
Product DetailsRequest a Quote
Send the full OE number and vehicle details. We will review the available catalogue information and ask for any missing fitment details before quoting.
Review product coverage by market
These are product-family areas to review with local distributors—not a measured sales ranking. Vehicle mix, fuel, emissions equipment and part availability vary by country. Confirm every application by OE catalogue or VIN.
| Region | Families to review | Fitment checks |
|---|---|---|
| Europe | Lambda/O₂; NOx, exhaust-temperature and DPF differential-pressure sensors for equipped vehicles; direct TPMS; engine-speed and position sensors. | Engine, emissions version, sensor position, production date, SCR/DPF layout and connector. |
| Southeast Asia | O₂/lambda, crank/cam, MAF/MAP, coolant and fuel pressure, fuel level and ABS speed; diesel aftertreatment where fitted. | Country, locally assembled/imported variant, engine code, fuel and model year. GAIKINDO publishes Indonesian industry indicators; ASEAN markets differ. |
| North America | O₂/air-fuel, TPMS, ABS speed, crank/cam and air-management; NOx/DEF/EGT/DPF pressure for equipped diesel and heavy-duty applications. | VIN, engine family, emissions label, sensor position, TPMS frequency/protocol and relearn needs. |
| South America | O₂/air-fuel, MAF/MAP, crank/cam and fuel-system sensors; exhaust sensors on diesel commercial vehicles where installed. | Country, fuel type, engine, local emissions package and connector. ANFAVEA reports Brazilian registrations by fuel category. |
Sources: Bosch sensor portfolio · Walker Products categories · GAIKINDO statistics · ANFAVEA data · U.S. TPMS rule. See our regional sourcing note for scope and additional sources.
Start with the OE number.
Application data and availability vary by part. Send the full OE number and vehicle details so we can check whether a match is available before quoting.
- 20 sensor product families
- OE cross-reference library
- Samples before volume orders
- EPC and export documentation