Collection: NG Oxygen Sensor

Oxygen sensors for gas engines, organized by part number. This collection covers our gas-engine oxygen sensors — Bosch 0258 series numbers and OEM applications such as 4001675 / LZA03-E2 and G5900-3800103.

Closed-loop control on a gas engine

On a CNG/LNG engine the oxygen sensor is what keeps the mixture at stoichiometric: the ECU trims gas flow against its signal. A lazy or contaminated sensor makes the engine run rich (high fuel consumption, sooty plugs) or lean (high exhaust temperature, power loss). Each sensor in this collection is built to OEM specifications with the correct thread, cable length and connector, and is function-tested before packing.

Supplied for gas engine service

We supply workshops servicing gas trucks, buses and generator sets, plus parts distributors, in box quantities with neutral packing available for resale. Send the number from the old sensor and the engine model — heat range and connector vary between applications.

Send us the part number, your quantity and your destination port — Contact Us. We confirm fitment and reply with a quotation.