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NTKPart #: 23523
NTK 23523 Oxygen Sensor
⚙️ 28 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$98.48Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ 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, Downstream Right, Downstream Left, Upstream Left, and Downstream Rear
🚗Fitment: Dodge and Mitsubishi, 3000GT, Diamante, Endeavor, Montero, Montero Sport, and Stealth
🔄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 23523 Oxygen Sensor
| Brand | NTK |
| Part Number | 23523 |
| Position | Direct Fit Oxygen Sensor, Downstream Right, Downstream Left, Upstream Left, and Downstream Rear |
| Wiring Harness Length | 34.7500 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Type | Threaded |
This part fits 28 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2011 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2010 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2008 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2007 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2006 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2005 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 2004 | Mitsubishi | Endeavor | 3.8L | V6 | Downstream Rear | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1999 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 1999 | Mitsubishi | Montero Sport | 3.0L | V6 | Upstream Left | Calif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1998 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 1998 | Mitsubishi | Montero Sport | 3.0L | V6 | Upstream Left | Calif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1997 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Left | Oxygen Sensor B2S2 placement designed to OE specifications.; Direct Fit Oxygen Sensor |
| 1997 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1997 | Mitsubishi | Montero | 3.5L | V6 | Upstream Left | Calif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1997 | Mitsubishi | Montero Sport | 3.0L | V6 | Upstream Left | Calif. Emissions; OE Equivalent Design; Direct Fit Oxygen Sensor |
| 1996 | Dodge | Stealth | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1996 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1996 | Mitsubishi | Diamante | 3.0L | V6 | Downstream Right | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1995 | Dodge | Stealth | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1995 | Dodge | Stealth | 3.0L | V6 | Downstream Right | B1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor |
| 1995 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1995 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Right | B1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor |
| 1995 | Mitsubishi | Diamante | 3.0L | V6 | Downstream Right | Equivalent OE design oxygen sensor; Direct Fit Oxygen Sensor |
| 1994 | Dodge | Stealth | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1994 | Dodge | Stealth | 3.0L | V6 | Downstream Right | B1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor |
| 1994 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Right | Downstream oxygen sensor with original equipment equivalent design; Direct Fit Oxygen Sensor |
| 1994 | Mitsubishi | 3000GT | 3.0L | V6 | Downstream Right | B1S2 California emissions OE equivalent design.; Direct Fit Oxygen Sensor |
| 1994 | Mitsubishi | Diamante | 3.0L | V6 | Downstream Right | Equivalent OE design oxygen sensor; 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:
13412138151383415352153541545115576213-2928213-3074234-4655234-465675-196775-197675-259075-259275-289575-3059ES10624ES20084MD305148MD305149MD312084MD331887MD343987MD343989MR985165OS1884OS1888OS1890OS2101OS5251OS915OS919SG1130SG1134SG1136SG1268SG1436SG401SG402
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.