B2FS 12749880076 Low Pressure Turbocharger for MaxxForce DT466 7.6L
The B2FS (12749880076) is the BorgWarner low-pressure turbocharger for the International Navistar MaxxForce DT466 and DT (I334) 7.6L engine, used in 2010-2012 International medium-duty trucks. The MaxxForce DT466 uses a compound twin-turbo system like the larger MaxxForce 13/15, but with a different turbo pairing. The B2FS is the low-pressure (outer) turbo that provides high-RPM airflow. BorgWarner part 12749880076, International OEM 1889489C94. Built new, dynamically balanced, ships with gaskets. We supply shops, fleets, and distributors.
Turbo Model
B2FS / R2 (BorgWarner, low-pressure side of twin-turbo system)
OEM / Interchange Numbers
12749880076, 1889489C94, 1891335C1, 1891335C93, 1891336C92, 12749900076, 5010934R91
Application
2010-2012 International Navistar MaxxForce DT466, DT, I334 7.6L (low pressure)
Service & Support
- 1-Year Unlimited-Mileage Warranty
- US Stock, Fast Dispatch
- Bulk Orders Welcome
- White-Label Support
- Fully Certified
Your Source for Quality Diesel Engine Parts
FAQ
The B2FS (12749880076) fits the MaxxForce DT466 / DT / I334 7.6L in 2010-2012 International trucks. This is the low-pressure turbo in the compound twin-turbo system.
Low pressure. The B2FS is the larger, outer turbo. The high-pressure turbo for this engine is BW part 11559880046/11559880047.
Brand new, dynamically balanced. No core charge. One-year unlimited-mileage warranty.
Yes. US stock, volume pricing for shops, fleets, and distributors.
B2FS Low-Pressure Turbo for MaxxForce DT466 7.6L
The MaxxForce DT466 / DT (I334) 7.6L uses a compound twin-turbo system. The B2FS is the low-pressure turbo — the larger, outer turbo that provides volume airflow at higher RPM. It pairs with a high-pressure turbo (BW part 11559880046/11559880047) closest to the exhaust manifold.
MaxxForce twin-turbo systems
Both the MaxxForce DT466 (7.6L) and MaxxForce 13/15 (13.0L) use compound twin-turbo setups, but with different turbo models:
| Engine | HP Turbo | LP Turbo |
|---|---|---|
| MaxxForce DT466 7.6L | 11559880046/47 | B2FS 12749880076 (this page) |
| MaxxForce 13 13.0L | B2XG 12709880008 | B3RS 13879880004 |
Installation
- LP turbo is the outer turbo in the twin assembly.
- Ships with gaskets. Strongly recommend replacing both turbos simultaneously.
- Flush oil feed lines. Prime before startup.
- Idle 3-5 minutes. Verify boost through ECM.
See our quality process for details.
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