QIYBONE Oxygen Sensor Set Upstream & Downstream 2PCS for Hyundai & Kia 1.6L (2012–2018) OEM-Fit Stainless Steel

QIYBONE two-piece oxygen sensor set replaces upstream 234-5055 and downstream 234-4568 to restore accurate air-fuel readings for compatible 1.6L L4 Hyundai and Kia models.

This pair of O2 sensors is designed to match OEM fit and function for specific Hyundai Accent, Veloster and Kia Rio/Soul vehicles from 2012–2018 with the 1.6L naturally aspirated engine. Constructed from stainless steel and heat-resistant components, the sensors provide sealed protection and a long service life while returning real-time exhaust gas information to the engine computer. They come with plug-and-play connectors for straightforward replacement—compare connectors with your original part before ordering.

Will these sensors fit my Hyundai or Kia?

Yes, the kit covers upstream and downstream positions for a clear list of model years and engine configurations. Confirm your vehicle has a 1.6L L4 non-turbo engine and compare the connector and part location to ensure compatibility.

• Hyundai Accent 1.6 L4: 2012–2017
• Hyundai Veloster 1.6 L4: 2012–2017
• Kia Rio 1.6 L4: 2012–2018
• Kia Soul 1.6 L4 (non-turbo): 2012–2018

How do these part numbers relate to my original sensor?

This QIYBONE set replaces commonly used OEM references so you can match numbers before purchasing. The upstream and downstream sensor references include multiple OEM variants that correspond to factory part numbers used on these vehicles.

• Upstream references: 234-5055, 24326, 39210-2B210, 39210-2B410
• Downstream references: 234-4568, 39210-2B220
• Also cross-referenced to older formats like 2345055 and 392102B220

What performance and durability features do these sensors offer?

The sensors use stainless steel housings and high-temperature materials to resist corrosion and heat exposure in the exhaust stream. Their sealed construction helps prevent contaminants from degrading the sensing element, while quick response characteristics help the engine control unit adjust fuel delivery more accurately.

• Stainless steel body for corrosion resistance
• High-temperature-resistant sensing element
• Sealed design for improved longevity
• Fast response to changes in exhaust composition

How difficult is installation and what should I check first?

Installation is designed to be straightforward with an OEM-style plug-and-play connector, but access and labor vary by vehicle. For easiest installation, let the exhaust cool, disconnect the negative battery terminal, and compare connector and thread size with the original sensor before removal.

• Compare connector shape and pin count to the original unit
• Allow exhaust to cool and support vehicle safely if undercar access needed
• Use anti-seize sparingly on threads if manufacturer permits
• Clear engine codes after installation with a scanner if present

Who is this for: This QIYBONE two-piece oxygen sensor kit is aimed at owners and independent mechanics who need a reliable upstream and downstream replacement for Hyundai Accent, Veloster, Kia Rio and Soul 1.6L naturally aspirated engines from 2012–2018. It's suited for drivers restoring proper emissions feedback, resolving O2-related trouble codes, or improving fuel-trim accuracy without sourcing expensive factory parts. Ensure the part numbers and connector styles match your vehicle before purchase.