IATF 16949:2016Quality management certified

OXYGEN · NOx · AUTOMOTIVE COMPONENTS

The parts.
The process.
The possibilities.

Real manufacturing. All-new components. Discover HAOLI’s automotive sensors, component range and manufacturing capabilities.

Explore our products

Inside HAOLI →

01 / OXYGEN

Oxygen sensors

02 / NOx

NOx sensors

RUIAN, CHINA / MANUFACTURING SINCE 2004

SCROLL TO DISCOVER ↓

QUALITY MANAGEMENT / IATF

IATF 16949:2016

Certified quality management.
A factory you can see.

Ruian Haoli Sensor Co., Ltd.

0596729
IATF certificate number

2029-02-05
Valid until

HAOLI factory building and rooftop sign — 01 / FACTORY BUILDING

HAOLI main entrance with bilingual company sign — 02 / MAIN ENTRANCE

Manufacturing roots since 2004. A factory floor area of approximately 35,000 m².

Step inside our factory

Original HAOLI IATF 16949:2016 certificate, number 0596729 — Select the certificate to enlarge

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HAOLI · 2026

News & Exhibitions

Meet HAOLI in Las Vegas and Shanghai. Explore products and discuss your next sourcing project.

Las Vegas, USA

AAPEX 2026

BOOTHV223503–5 November 2026 HAOLI sensor product

EXHIBITION PREVIEW

Meet HAOLI at AAPEX 2026

Visit our booth to discuss oxygen sensors, NOx sensors and automotive components.

View exhibition details

Shanghai, China

Automechanika Shanghai 2026

BOOTH8.1M332–5 December 2026 HAOLI sensor product

EXHIBITION PREVIEW

Meet HAOLI at Automechanika Shanghai 2026

Visit our booth to discuss oxygen sensors, NOx sensors and automotive components.

View exhibition details

All news & exhibitions →

2004

Manufacturing roots

35,000 m²

Factory floor area

Oxygen sensor types & series

100%

New components

FIND A PART

Have an OE number?

01 / PRODUCT PORTFOLIO

Two core ranges.
A wider world of components.

Oxygen and NOx sensors at the centre. A broader component range for your sourcing enquiries.

View all products

01 / O₂

Oxygen sensors

A/F, wide-band, switching-type and motorcycle applications.

Explore

02 / NOx

NOx sensors

Passenger and commercial vehicle enquiries, matched by OE and specification.

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03 / ABS

ABS sensors

Wheel-speed sensor range with a downloadable OE reference catalogue.

Explore

04 / FUEL

Fuel pumps

Pump inserts and assembly enquiries. Confirm the required configuration with our team.

Explore

05 / METAL

Stamped parts

Driveshaft sleeves and metal stamped components, with manufacturing roots since 2004.

Explore

06 / CLAMPS

Band clamps

Band clamp products. Share your dimensions, material and application requirements.

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07 / HEIGHT

Ride-height sensors

Ride-height sensor references, with two catalogues for model and OE review.

Explore

02 / INSIDE HAOLI

More than a product.
A place where it takes shape.

From automotive components to sensor production, our story is grounded in the workshop. Explore our equipment, testing facilities and manufacturing environment in Ruian.

Explore manufacturing

35,000 m²
FACTORY FLOOR AREA

03 / MATERIALS & QUALITY

What goes into a sensor
matters.

New from the start.

All-new components. No dismantled or take-off parts.

A considered chip source.

The chips used in HAOLI oxygen sensors come from the same supplier as the chips used in BYD oxygen sensors.

Every unit inspected.

All HAOLI products undergo 100% inspection before dispatch. Inspection requirements are confirmed for each product and order.

Our approach to quality

04 / OXYGEN SENSOR COLLECTION

A closer look
at the range.

Real product photography from our collection. Click a photograph to explore the details.

Explore oxygen sensors

05 / TESTING & CONFIRMATION

The details deserve
a closer look.

Our facilities include sensor test benches, an engine test bench and chip-performance testing equipment. We review OE references, connectors, harnesses and specifications before confirming an order.

See our facilities

06 / DOWNLOAD CENTRE