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NTKPart #: 25727
NTK 25727 Oxygen Sensor
⚙️ 94 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$81.10Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
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*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Direct Fit Oxygen Sensor, Upstream, Downstream, Upstream Right, Upstream Left, Downstream Right, and Downstream Left
🚗Fitment: Buick, Cadillac, Chevrolet, Pontiac, Porsche, Saab, and Saturn, 9-3, 9-4X, 9-5, Boxster, Cruze, Cruze Limited, CTS, Encore, G8, Rendezvous, Sonic, SRX, Trax, and Vue
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Oxygen Sensor options
NTK 25727 Oxygen Sensor
| Brand | NTK |
| Part Number | 25727 |
| Position | Direct Fit Oxygen Sensor, Upstream, Downstream, Upstream Right, Upstream Left, Downstream Right, and Downstream Left |
| Wiring Harness Length | 15.7500 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
This part fits 94 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2021 | Buick | Encore | 1.4L | L4 | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2021 | Chevrolet | Trax | 1.4L | L4 | Downstream | OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2020 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2020 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2020 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2019 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2018 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2017 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | Chevrolet | Cruze Limited | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | Chevrolet | Cruze Limited | 1.4L | L4 | Downstream | B1S2; Carryover Model; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2016 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2016 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2015 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2015 | Chevrolet | Cruze | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2015 | Chevrolet | Cruze | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2015 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2015 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2015 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2014 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2014 | Chevrolet | Cruze | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2014 | Chevrolet | Cruze | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2014 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2014 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2014 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2013 | Buick | Encore | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2013 | Chevrolet | Cruze | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2013 | Chevrolet | Cruze | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2013 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2013 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2013 | Chevrolet | Trax | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2012 | Chevrolet | Cruze | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2012 | Chevrolet | Cruze | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2012 | Chevrolet | Sonic | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2012 | Chevrolet | Sonic | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2011 | Cadillac | SRX | 2.8L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2011 | Cadillac | SRX | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2011 | Chevrolet | Cruze | 1.8L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2011 | Chevrolet | Cruze | 1.4L | L4 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2011 | Saab | 9-4X | 2.8L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2011 | Saab | 9-4X | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2011 | Saab | 9-5 | 2.8L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2010 | Cadillac | SRX | 2.8L | V6 | Upstream | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2010 | Cadillac | SRX | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2009 | Pontiac | G8 | 3.6L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2009 | Pontiac | G8 | 3.6L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2009 | Saab | 9-3 | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2008 | Pontiac | G8 | 3.6L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2008 | Pontiac | G8 | 3.6L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2008 | Saab | 9-3 | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2007 | Saab | 9-3 | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2006 | Saab | 9-3 | 2.8L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2004 | Buick | Rendezvous | 3.6L | V6 | Downstream | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2004 | Cadillac | CTS | 3.2L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2004 | Cadillac | CTS | 3.2L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2004 | Cadillac | CTS | 3.2L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2004 | Cadillac | CTS | 3.2L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 3.2L | H6 | Upstream | Located Before RH Primary (Manifold) Catalyst; B1S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 3.2L | H6 | Upstream | Located Before LH Primary (Manifold) Catalyst; B2S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 3.2L | H6 | Downstream | Located After RH Primary (Manifold) Catalyst; B1S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 3.2L | H6 | Downstream | Located After LH Primary (Manifold) Catalyst; B2S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 2.7L | H6 | Upstream | Located Before RH Primary (Manifold) Catalyst; B1S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 2.7L | H6 | Upstream | Located Before LH Primary (Manifold) Catalyst; B2S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 2.7L | H6 | Downstream | Located After RH Primary (Manifold) Catalyst; B1S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2004 | Porsche | Boxster | 2.7L | H6 | Downstream | Located After LH Primary (Manifold) Catalyst; B2S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Cadillac | CTS | 3.2L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2003 | Cadillac | CTS | 3.2L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2003 | Cadillac | CTS | 3.2L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2003 | Cadillac | CTS | 3.2L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 3.2L | H6 | Upstream | Located Before RH Primary (Manifold) Catalyst; B1S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 3.2L | H6 | Upstream | Located Before LH Primary (Manifold) Catalyst; B2S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 3.2L | H6 | Downstream | Located After RH Primary (Manifold) Catalyst; B1S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 3.2L | H6 | Downstream | Located After LH Primary (Manifold) Catalyst; B2S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 2.7L | H6 | Upstream | Located Before RH Primary (Manifold) Catalyst; B1S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 2.7L | H6 | Upstream | Located Before LH Primary (Manifold) Catalyst; B2S1; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 2.7L | H6 | Downstream | Located After RH Primary (Manifold) Catalyst; B1S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Porsche | Boxster | 2.7L | H6 | Downstream | Located After LH Primary (Manifold) Catalyst; B2S2; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 2003 | Saturn | Vue | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2003 | Saturn | Vue | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2003 | Saturn | Vue | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2003 | Saturn | Vue | 3.0L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 2002 | Saturn | Vue | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit Oxygen Sensor |
| 2002 | Saturn | Vue | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit Oxygen Sensor |
| 2002 | Saturn | Vue | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 2002 | Saturn | Vue | 3.0L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
125717681261921116263163781637916507165081654616595167331673616743213-4644213-4698234-4528234-4821234-4917234-492024402859244028605556826655572216555741355557413692210450931861159866062270098660622800OS5304
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.