1628.HQ Oxygen Sensor – 4-Wire Direct Fit O2 Sensor for Peugeot & Citroen

The 1628.HQ Oxygen Sensor is a 4-wire direct-fit O2 sensor designed for compatible Peugeot and Citroen applications.

1628.HQ Direct Fit 4-Wire Oxygen Sensor – 1628EC 1268EC O2 Sensor for Peugeot 307 Citroen C3 C4 C5

Reliable Downstream O2 Sensor for Direct Replacement

Designed as a direct replacement for the original oxygen sensor, this 1628.HQ oxygen sensor is engineered for accurate exhaust oxygen measurement and reliable engine management.

Featuring a 4-wire design, male 4-pin plug, stainless steel and ceramic construction, this downstream O2 sensor provides a convenient plug-and-play replacement for compatible Peugeot and Citroen applications.

It is an ideal solution for repair shops, auto parts distributors, wholesalers, and vehicle owners looking to replace a worn or faulty oxygen sensor without unnecessary wiring modifications.

1. Top Features for Reliable O2 Sensor Replacement

Direct-Fit Plug-and-Play Design

Designed to replace the original oxygen sensor with a matching 4-pin male connector, helping simplify installation and reduce the need for wiring modifications.

4-Wire Oxygen Sensor

The 4-wire configuration provides the required sensor connections for compatible vehicle applications and supports reliable exhaust oxygen measurement.

Downstream / Rear Position

Designed for installation in the rear/downstream oxygen sensor position, making it suitable for vehicles requiring a downstream O2 sensor replacement.

Durable Stainless Steel & Ceramic Construction

Manufactured with stainless steel and ceramic core materials to provide durability under the demanding temperature and operating conditions of an automotive exhaust system.

OE Number Compatibility

Reference OE No. 1628HQ / 1628.HQ, with 1628EC and 1268EC listed as applicable reference numbers for product identification and compatibility checking.

2. Tehničke specifikacije

ParametarDetalj
Naziv proizvodaOxygen Sensor / O2 Sensor
OE Number1628HQ
OE Reference1628.HQ
Interchange Part No.1628.HQ
Reference Numbers1628EC, 1268EC
Položaj senzoraRear / Downstream
Number of Wires4 Wires
Terminal GenderMale
Connector4-Pin Plug
Vrsta ugradnjeDirect Replacement / Plug and Play
MaterijalStainless Steel & Ceramic Core
StanjeNovo
SvrhaZamjena / Popravak
AplikacijaPeugeot & Citroen Vehicles
Vehicle ReferencePeugeot 307, Citroen C3, C4, C5
Garancija1 godina
Place of OriginKina

Napomena: OE numbers and vehicle applications are provided for reference only. Please confirm the original sensor number, connector, wire configuration, sensor position, and vehicle specifications before ordering.

3. Why Replace a Worn Oxygen Sensor?

Lampica za provjeru motora

A faulty or aging O2 sensor may trigger the check engine light and generate oxygen-sensor-related diagnostic trouble codes. Replacing the sensor with a compatible unit can help restore proper exhaust oxygen feedback.

Incorrect Air-Fuel Feedback

The oxygen sensor provides exhaust oxygen information to the engine management system. A degraded sensor may provide inaccurate signals and affect the engine’s air-fuel control.

Poor Fuel Economy

When an oxygen sensor is no longer operating correctly, the engine management system may not receive accurate exhaust feedback, potentially contributing to inefficient fuel consumption.

Difficult Emission Diagnosis

A properly functioning downstream oxygen sensor helps the vehicle’s control system monitor exhaust conditions. Replacing a failed sensor can be an important step when diagnosing emission-related problems.

4. Direct Replacement Advantages

OEM Reference Matching

The 1628.HQ / 1628HQ reference helps buyers identify the correct replacement sensor and compare it with the original vehicle component.

Jednostavna instalacija

The 4-pin male plug and direct-fit configuration are designed for convenient replacement on compatible applications.

No Unnecessary Wiring Modification

The plug-and-play design helps reduce installation complexity compared with universal sensors that require connector cutting or wire splicing.

Suitable for Professional Repair

A practical replacement option for auto repair shops, distributors, wholesalers, and aftermarket auto parts suppliers.

5. Kompatibilnost i aplikacije

This 1628.HQ oxygen sensor is designed for compatible Peugeot and Citroen applications, including reference applications such as:

  • Peugeot 307

  • Citroen C3

  • Citroen C4

  • Citroen C5

Common Application

Sensor Position: Rear / Downstream
Sensor Type: 4-Wire Oxygen Sensor
Connector: Male 4-Pin Plug
Fitment: Direct Replacement / Plug and Play

Before purchase, always compare the OE number, connector, wire count, sensor position, and original sensor appearance to ensure correct fitment.

6. Quality & Product Reliability

New Replacement Part

Supplied as a new oxygen sensor for replacement and repair applications.

Durable Materials

The combination of stainless steel and ceramic core materials is designed for use in automotive exhaust environments.

Connector Compatibility

The integrated 4-pin male connector supports convenient installation on matching vehicle applications.

1-Year Warranty

Each product is backed by a 1-year warranty for additional purchasing confidence.

7. Ideal for B2B Auto Parts Buyers

This 1628.HQ O2 sensor is suitable for:

  • Auto Parts Wholesalers

  • Automotive Distributors

  • Repair Shops

  • Auto Parts Retailers

  • E-commerce Sellers

  • Importers

  • Aftermarket Replacement Parts Suppliers

For bulk purchasing, we can support product sourcing and supply according to customer requirements.

8. The 1628.HQ Oxygen Sensor Advantage

Accurate Product Matching

✓ OE reference: 1628HQ / 1628.HQ
✓ Interchange references: 1628EC / 1268EC

Easy Replacement

✓ Rear / downstream installation
✓ 4-wire configuration
✓ Male 4-pin connector
✓ Direct replacement / plug-and-play design

Practical Aftermarket Solution

✓ New replacement part
✓ Stainless steel & ceramic construction
✓ Suitable for Peugeot and Citroen applications
✓ 1-year warranty

9. Ordering & Fitment Guide

Before ordering the 1628.HQ oxygen sensor, please verify:

1. Original OE Number
Check whether your original sensor is marked 1628HQ / 1628.HQ.

2. Sensor Position
Confirm that the vehicle requires a rear/downstream oxygen sensor.

3. Wire Configuration
Verify that the original sensor uses a 4-wire configuration.

4. Connector Type
Check that the original connector is a compatible male 4-pin plug.

5. Vehicle Application
Confirm compatibility with your specific Peugeot or Citroen model, engine, year, and original sensor number.

10. Frequently Asked Questions

What is the OE number of this oxygen sensor?

The primary OE number is 1628HQ, also written as 1628.HQ.

Is this a 4-wire oxygen sensor?

Yes. This product uses a 4-wire configuration.

Is this an upstream or downstream O2 sensor?

This product is designed for the rear/downstream sensor position.

Is this oxygen sensor plug and play?

Yes. It features a male 4-pin plug and is designed as a direct replacement for compatible applications.

Which vehicles can use the 1628.HQ oxygen sensor?

The listed reference applications include Peugeot 307 and Citroen C3, C4 and C5. Exact compatibility should be confirmed using the original OE number, connector, wire configuration, and vehicle specifications.

What material is the sensor made from?

The product uses stainless steel and ceramic core materials.

What is the warranty?

The product comes with a 1-year warranty.

Can I order this oxygen sensor in bulk?

Yes. It is suitable for wholesalers, distributors, repair shops, and aftermarket auto parts businesses. Contact us for bulk purchasing requirements.

11. Get the Right 1628.HQ O2 Sensor for Your Vehicle

Looking for a reliable 1628.HQ oxygen sensor, 1628EC O2 sensor, or 1268EC oxygen sensor for Peugeot or Citroen applications?

Contact us to confirm OE number, vehicle compatibility, connector specifications, bulk pricing, and availability before ordering.

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