BPS International MaxxForce DT 7.6L I6 Turbo Set (2) (HP/LP) 2010–2012 - OE Replacement

Both Stages, One Box: The MaxxForce DT Compound Turbo Set That Brings Your 4300 Back to Full Boost

The BPS HP/LP Turbo Set replaces both turbos in the factory two-stage (compound) system on 2010–2012 International MaxxForce DT 7.6L inline-6 engines: the high-pressure turbo (BorgWarner 1155-990-0047 family, Alliant Power AP90019) and the low-pressure turbo (BorgWarner 1274-990-0076, Alliant Power AP90009).

Not for MaxxForce 7 6.4L V8 (VIN digits 6–7 = SK). The MaxxForce 7 uses different turbos (BorgWarner 1274-990-0078 LP / 1155-990-0048 HP) with different turbine inlet flanges.

Check your truck before you order: look at digits 6–7 of your VIN. AA = MaxxForce DT (this turbo fits). SK = MaxxForce 7 6.4L V8 (this turbo does not fit). Not sure? Send us your VIN and a photo of your old turbo tag and we will confirm fitment before it ships.

Elevate your International MaxxForce DT 7.6L inline-6 engine (2010-2012) with the BPS High and Low Pressure Turbo Set, a complete OE replacement kit engineered to exceed factory specifications and tackle the toughest trucking challenges. Proudly made in BPS facilities, this innovative heavy diesel solution combines a high-pressure turbo (50mm compressor wheel, 58mm turbine wheel, 1.10 A/R ratio) with a low-pressure turbo (55mm compressor wheel, 62mm turbine wheel, 1.15 A/R ratio) for optimal staged boost, delivering ~30% improved torque, superior EGR efficiency, exceptional driveability, and enhanced fuel economy. Precision-built with durable materials that withstand extreme temperatures, pressures, and vibrations, this turbo set ensures seamless power delivery, reduced lag, and unrivaled reliability for heavy-duty trucks, buses, and fleets. Backed by a 1-year unlimited mileage warranty and industry-leading customer service, it's a bolt-on upgrade with no core charge, fast shipping, and expert support—perfect for long-haul pros who need consistent performance, fewer breakdowns, and maximum uptime on demanding routes.

Key Features

• High Pressure (HP) Turbo: Pneumatic wastegate, triangular 3-bolt turbine inlet flange.
• Low Pressure (LP) Turbo: Long cast turbine elbow with a small diamond 4-bolt inlet flange.
• Applications: International DuraStar 4300, 4300LP, 4400, 4400LP and WorkStar 7300 / 7400 / 7500 trucks with the MaxxForce DT 7.6L inline-6 compound-turbo engine (2010–2012).
• Dual-Stage Turbo Design: High-pressure (50mm compressor, 58mm turbine, 1.10 A/R) and low-pressure (55mm compressor, 62mm turbine, 1.15 A/R) setup for balanced boost, ~30% torque gains, and improved EGR flow in MaxxForce DT engines.
• Precision Build: Crafted in BPS facilities with high-quality materials resistant to heat and stress, ensuring long-term durability in harsh heavy-duty environments.
• Performance Enhancements: Boosts driveability with quicker throttle response, better fuel efficiency, and smoother acceleration under heavy loads for trucks and buses.
• Bolt-On Installation: Direct OE replacement for 2010-2012 MaxxForce DT 7.6L models, with no core charge or modifications required—minimizing downtime for on-the-go truckers.
• 1-Year Unlimited Mileage Warranty: Comprehensive coverage with top-notch customer support, providing peace of mind and protection for extended hauls and fleet operations.

Cross References

• Low-Pressure Turbo:
  • BorgWarner: 1274-990-0076, 12749900076, 1274-988-0076, 12749880076
  • Alliant Power (Navistar reman): AP90009
  • Navistar / International: 1889489C91, 1889489C92, 1889489C93, 1889489C94, 1891335C1, 1891335C2, 1891335C3, 1891335C91, 1891335C92, 1891335C93, 1891336C91, 1891336C92, 1891336C93, 5010934R91, 5010935R1
• High-Pressure Turbo:
  • BorgWarner: 1155-990-0047, 11559900047, 1155-988-0047, 11559880047 (tag versions -0046 / -0049 are the same family)
  • Alliant Power (Navistar reman): AP90019
  • Navistar / International: 1882868C1, 1882868C91, 1889486C91, 1889486C92, 1889486C93, 1891392C91, 1891392C92, 1891392C93, 1891392C94, 1891392C95, 1891557C91, 1891557C92, 1891557C93, 5010930R91, 5010931R91, 5010932R91