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OE Quality
60-Day Returns
NTKPart #: 24746
NTK 24746 Air / Fuel Ratio Sensor - Upstream
6 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$148.88Free 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 4-Wire A/F Sensor, Upstream
Fitment: Subaru, Legacy and Outback
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? See all Air / Fuel Ratio Sensor options
NTK 24746 Air / Fuel Ratio Sensor - Upstream
| Brand | NTK |
|---|---|
| Part Number | 24746 |
| Position | Direct Fit 4-Wire A/F Sensor, Upstream |
| 11589 | Metric |
| Heated | Yes |
| Wiring Harness Length | 19.75 |
| Wiring Harness Length | 500.00 |
| Sensor Type | Wide-band |
| Connector Color | Black |
| Terminal Type | Blade |
| Thread Length | 7.00 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Grade Type | Standard replacement |
| Connector Shape | Rectangular |
| Terminal Quantity | 4 |
| Connector Gender | Female |
| Terminal Gender | Female |
| Thread Size | M18 - 1.5 |
| Mounting Bracket Included | No |
| Heated | Yes |
| Hex Size | 7/8" (22mm) |
| Technology | 4-wire a/f sensor |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2012 | Subaru | Legacy | 2.5L | H4 | Upstream | OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2012 | Subaru | Outback | 2.5L | H4 | Upstream | OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2011 | Subaru | Legacy | 2.5L | H4 | Upstream | OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2011 | Subaru | Outback | 2.5L | H4 | Upstream | OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2010 | Subaru | Legacy | 2.5L | H4 | Upstream | OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
| 2010 | Subaru | Outback | 2.5L | H4 | Upstream | OE Equivalent Design; Direct Fit 4-Wire A/F Sensor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.