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Precision Automotive Components
Engineered for Excellence

Wenzhou Yili Automotive Parts Technology Co., Ltd. is a leading manufacturer of oxygen sensors, NOx sensors, transmission oil pans, and other critical automotive components. With over a decade of industry experience and global exports, we deliver reliability, innovation, and performance.

About YILI Auto Parts

Wenzhou Yili Automotive Parts Technology Co., Ltd. is a modern enterprise specializing in the research, development, and production of advanced automotive sensors and components. Since 2013, we have invested heavily in collaboration with domestic authoritative institutions to develop core technologies including zirconium oxygen sensor cores and heating rods.

Our company maintains a complete and scientific quality management system, an advanced testing platform, and a strong R&D team. We manufacture oxygen sensors, temperature control switches, ABS wheel speed sensors, camshaft and crankshaft position sensors, water temperature sensors, oil pans, and intake manifolds. Our products are exported to Southeast Asia, South America, the Middle East, and Africa.

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10+
Years Industry Experience
200+
Skilled Personnel
3
R&D Centers
20+
Global Service Regions

Our Core Strengths

Heavy Investment

Invested heavily in developing oxygen sensors, zirconium cores, and heating rods with authoritative domestic institutions.

Automated Production

Own complete set of automated production equipment ensuring consistency, precision, and high output.

R&D Platform

Full sensor research and development platform with dedicated testing equipment and innovation labs.

Quality & Reputation

Renowned for exquisite technology, strict craftsmanship, and high-quality services across global markets.

Our Premium Products

Explore our wide range of high-performance automotive components designed for reliability, efficiency, and durability across global vehicle models.

NOx Sensor For Volvo /5WK9 7372/22827995

  • Probe Type: Big Head
  • Insulating Sleeve: Black
  • Voltage: 12V
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NOx Sensor For VW 5WK9 6637B / 059907807 C

  • Voltage: 12V
  • Mounting: Square Ears
  • Back Cover: Metal
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NOx Sensor For VW 5WK9 7230 / 059907807 L

  • Probe Type: Small Head
  • Insulating Sleeve: Black
  • Voltage: 12V
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NOx Sensor For VW 5WK9 6688A/03L9 07807 AD

  • Connector: Flat 5-pin Black
  • Probe Type: Small Head
  • Insulating Sleeve: Black
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NOx Sensor For Volvo /5WK9 7365/22303384

  • Connector: Flat 5-Pin
  • Probe Type: Small Head
  • Insulating Sleeve: Black
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NOx Sensor For Volvo /5WK9 6643E/22014032

  • Connector: Flat 4-Pin Black
  • Probe Type: Small Head
  • Insulating Sleeve: Black
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NOx Sensor For MAN 5WK9 6721B / 51.15408-0016

  • Connector: Square 6-pin Black
  • Probe Type: Small Head
  • Insulating Sleeve: Blue
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NOx Sensor For MAN 5WK9 6783A/B / 51154080011

  • Insulating Sleeve: Blue
  • Voltage: 24V
  • Mounting: Round Ear
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NOx Sensor For MAN 5WK9 6618D / 51154080015

  • Probe Type: Big Head
  • Insulating Sleeve: Black
  • Voltage: 12V
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NOx Sensor For KIA SNS0816A / 29650-2U200

  • Connector: Square 4-pin Gray
  • Probe Type: Small Head
  • Insulating Sleeve: Black
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NOx Sensor For KIA SNS0305A / 29655-84330

  • Insulating Sleeve: Black
  • Voltage: 24V
  • Mounting: Round Ear
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NOx Sensor For KIA SNS0399A / 29650-4A200

  • Connector: Flat 5-pin Black
  • Probe Type: Small Head
  • Insulating Sleeve: Black
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Why Choose YILI Auto Parts?

ISO & Quality Certified

We maintain a complete and scientific quality management system to ensure every component meets international standards.

Global Export Network

Our products are trusted in Southeast Asia, South America, the Middle East, and Africa with growing worldwide service coverage.

Advanced R&D

Dedicated research centers and partnerships with institutions ensure cutting-edge sensor technology and innovation.

Full Production Control

From zirconium cores to final assembly, we control the entire manufacturing process for unmatched consistency.

10+
Years in Industry
200+
Team Members
3
R&D Centers
20+
Countries Served

Frequently Asked Questions

What is the main function of an oxygen sensor?

The oxygen sensor monitors the amount of oxygen in the exhaust gas and sends data to the engine control unit (ECU) to adjust the air-fuel mixture for optimal combustion, improving fuel efficiency and reducing emissions.

How do NOx sensors contribute to emission control?

NOx sensors detect nitrogen oxide levels in exhaust gases. They help the ECU manage the selective catalytic reduction (SCR) system to reduce harmful NOx emissions, ensuring compliance with environmental regulations.

What causes a transmission oil pan to leak?

Common causes include damaged gaskets, loose bolts, corrosion, or physical impact. Regular inspection and maintenance can prevent oil leaks and transmission damage.

Can I replace an oxygen sensor myself?

While possible for experienced DIYers, we recommend professional installation to ensure proper calibration and connection with the vehicle’s ECU for optimal performance.

Do you offer custom auto parts solutions?

Yes, YILI Auto Parts provides customized manufacturing services for intake manifolds, sensors, and other components based on OEM specifications and client requirements.

Get in Touch

We're ready to support your automotive parts needs. Reach out for inquiries, partnerships, or technical support.

Contact Information

Email: [email protected]

Phone: +86 198 8887 5808

WhatsApp: kingsley.yu, Karen.chen

Address:

West End of the Fourth Floor, No. 117 Shendong Road, Xianyan Industrial Zone, Xianyan Street, Ouhai District, Wenzhou City, Zhejiang Province, China

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