The BorgWarner EFR B1 6258 is a universal-fit turbocharger super core (CHRA) from the EFR series — the complete rotating cartridge with a forged-milled compressor wheel, lightweight Gamma-Ti turbine wheel, and dual ceramic ball-bearing center housing. It pairs with your choice of compressor and turbine housings to build a complete turbo.
- EFR B1 6258 super core (CHRA / rotating assembly)
- Compressor wheel: 62mm
- Turbine wheel: 58mm Gamma-Ti
- Bearing: Dual ceramic ball bearing
- Universal fitment — pairs with separately sold compressor & turbine housings
Specifications
| Brand |
BorgWarner |
| Series |
EFR B1 6258 |
| Frame |
EFR 62 |
| Compressor Wheel |
62mm |
| Turbine Wheel |
58mm Gamma-Ti |
| Bearing |
Dual ceramic ball bearing |
| Fitment |
Universal (housings sold separately) |
| Part # |
11587105002 |
