NTK 25747 Oxygen Sensor - Downstream
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NTK
 Direct Fit Oxygen Sensor

NTK 25747 Oxygen Sensor - Downstream

Brand NTK 25747
Position Downstream
Wiring Harness Length 35.5000
Sensor Type Heated
Universal Or Specific Fit Specific
Wire Quantity 4
Thread Diameter 18.000
Mounting Type Threaded
Product line Direct Fit Oxygen Sensor
Fits Hyundai · 3 vehicles

Direct fit design. Built for specific applications with OE-style replacement geometry.

Heated sensor. Helps the sensor reach operating temperature quickly for emissions control.

OE-tested quality. Manufactured and tested to meet or exceed OE specifications.

Cross-references 392102B270 for the same application. See all 1.

$115.89Free shipping
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Direct Fit Oxygen Sensor for Hyundai Veloster

NTK 25747 is a direct fit heated oxygen sensor built for specific applications and threaded installation. It is engineered for downstream use on the Hyundai Veloster and matches the original equipment equivalent design called out in the fitment data.

  • Heated oxygen sensor for faster operating response.
  • Specific-fit design for direct replacement applications.
  • Threaded mounting with an 18 mm thread diameter.
  • 35.5 in. wiring harness length for application-specific routing.
  • 4-wire configuration for the listed vehicle applications.

Fitment and Application Details

Fits 2014-2015 Hyundai Veloster, downstream. Fits 2013 Hyundai Veloster, downstream; B1S2; w/OE #39210-2B270; OE equivalent design.

This part cross-references Hyundai OE number 39210-2B270 for the same application.

NTK 25747 is part of the Direct Fit Oxygen Sensor line, which focuses on application-specific coverage and OE-style replacement. NTK is known for oxygen sensor manufacturing within the NGK family of products, with ceramic-based production control and broad market support for import and domestic vehicles.

What It Helps Address

  • Fault codes related to oxygen sensor performance.
  • Incorrect air-fuel mixture readings from a worn sensor.
  • Slow sensor response that affects emissions control.
  • Downstream monitoring issues on the listed application.

Installation Notes and Quality

Use the threaded mounting style and harness length to confirm routing before installation. Verify the downstream location and the OE-equivalent application details against the vehicle before replacement.

NTK tests oxygen sensors during manufacturing to support OE-level specifications and reliability.

Related reading

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2015HyundaiVeloster1.6LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2014HyundaiVeloster1.6LL4DownstreamDownstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor
2013HyundaiVeloster1.6LL4DownstreamB1S2; w/OE #39210-2B270; OE Equivalent Design; Direct Fit Oxygen Sensor
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
392102B270