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NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.
Upgrade or replace your oxygen sensor with the NGK NTK Direct Fit (B1S2) Oxygen Sensor (24478), engineered for 2015-2020 Subaru WRX (Base, Limited, Premium) and 2014-2018 Subaru Forester (2.0XT Premium, 2.0XT Touring) models. As a leading OEM supplier, NTK ensures this sensor plays a critical role in maintaining optimal engine performance, maximizing fuel efficiency, and reducing harmful emissions.
This sensor provides constant closed-loop feedback to your ECU, helping to precisely control the air-fuel ratio. It's essential for alerting the OBDII system to potential issues with fuel delivery or catalytic converter efficiency, ensuring your Subaru runs smoothly and efficiently.
Trust NTK's expertise to keep your Subaru performing at its best. This sensor is a vital component for your vehicle's engine management system. Find this and other quality parts at GGCRACING.
| Brand | NGK |
|---|---|
| Manufacturer part number | 24478 |
| GGC SKU | NGK24478 |
| UPC / GTIN | 87295244781 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 5.8 × 2.2 × 2 in |
|---|---|
| Shipping weight | 0.26 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 2014-2018 | Subaru | Forester | 2.0XT Premium, 2.0XT Touring |
| 2015-2021 | Subaru | WRX | Base, Limited, Premium |
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