The BorgWarner S300SX-E S391 is a universal-fit turbocharger super core (CHRA) from the AirWerks series — the complete rotating cartridge with a forged-milled compressor wheel and a 360-degree thrust-bearing center housing. It pairs with your choice of compressor and turbine housings to build a complete turbo for high-performance and diesel applications.
| Series | S300SX-E S391 |
| Frame | S300 |
| Compressor Wheel | 66.11mm inducer / 91.44mm exducer |
| Turbine Wheel | 79.76mm |
| Bearing | 360 degree thrust bearing |
| Fitment | Universal (housings sold separately) |
| Part # | 13009097049 |
| Part Number | 13009097049 |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
