This is the BorgWarner 11559900047, a B1UG turbocharger remanufactured by BorgWarner. It is the high-pressure stage, the small turbo, of the two-stage turbo system on the International / Navistar MaxxForce DT (DT466) 7.6L inline six. It is the high-pressure turbo only. It replaces Navistar 1882868C1, 1882868C91, 1889486C91 to C93, 1891557C91 to C93, 5010930R91 and 5010931R1, and BorgWarner 179322 and 11559700043. The new version of the same turbo is BorgWarner 11559880047, with the same fitment. Heavy and medium duty turbos are matched by the number on the turbo tag, not by engine model alone.

Turbos on these engines are usually replaced for shaft play, oil in the charge pipes, a damaged compressor or turbine wheel, low boost or a whine under load. Before fitting a replacement, find out why the old one failed: check the oil feed and drain, the air filter and intake piping, and look for debris in the exhaust manifold and charge air cooler. On a two-stage system, check the low-pressure turbo and the pipe between the stages too. A refundable core applies, so keep your old turbo complete.

Specifications

Fits / Applications

• International / Navistar MaxxForce DT (DT466) 7.6L with the two-stage turbo system: high-pressure stage
• Three catalogs also list it for the DT570, and one of them for the MaxxForce 9. BorgWarner 11559880049 is cataloged for the DT570 as well, so on a DT570 or MaxxForce 9 go by the number on the turbo tag.
• Turbos tagged Navistar 1882868C1, 1882868C91, 1889486C91 to C93, 1891557C91 to C93, 5010930R91 or 5010931R1
• High-pressure turbo only. Not the low-pressure stage, and not for the MaxxForce 7.

Flush or replace the oil feed line, check the oil drain for restriction, change the engine oil and filter, clean the charge air cooler and piping of oil and debris, and prime the turbo with clean oil before the first start. Use new gaskets. Inspect the low-pressure turbo and the interstage piping while the system is apart.

Part Numbers & Cross Reference

BorgWarner remanufactured 11559900047  ·  BorgWarner new twin 11559880047  ·  BorgWarner 11559700043  ·  BorgWarner 179322  ·  BorgWarner remanufactured 479322  ·  Navistar 1882868C1  ·  Navistar 1882868C91  ·  Navistar 1889486C91  ·  Navistar 1889486C92  ·  Navistar 1889486C93  ·  Navistar 1891557C91  ·  Navistar 1891557C92  ·  Navistar 1891557C93  ·  Navistar 5010930R91  ·  Navistar 5010930C91  ·  Navistar 5010931R1

Cross-reference numbers can change with engine serial, build year and emissions tier, so treat this list as a starting point. Send us your engine serial number and we will confirm the exact match against your build before anything ships. That check is free and takes a few minutes.

Frequently Asked Questions

Is the 11559900047 the high-pressure or the low-pressure turbo?

It is the high-pressure stage, a BorgWarner B1UG, the smaller turbo of the two-stage system on the MaxxForce DT. The low-pressure turbo is a different part number.

What numbers does the 11559900047 replace?

Navistar 1882868C1, 1882868C91, 1889486C91 to C93, 1891557C91 to C93, 5010930R91 and 5010931R1, and BorgWarner 179322 and 11559700043.

Is it new or remanufactured, and is there a core?

It is remanufactured by BorgWarner, and a refundable core applies. The new version of the same turbo is BorgWarner 11559880047.

Will it fit a DT570, a MaxxForce 9 or a MaxxForce 7?

The MaxxForce 7 takes a different turbo, BorgWarner 11559880048. Three catalogs list this turbo for the DT570 as well, and one of them for the MaxxForce 9, but BorgWarner 11559880049 is also cataloged for the DT570, so call 530-668-0818 with the number on your turbo tag before ordering.

Related Parts

• Looking for new? International MaxxForce DT / DT466 B1UG High-Pressure Turbocharger | BorgWarner 11559880047 New
• Same fit, other version: 2010-2012 International MaxxForce DT B1UG High-Pressure Turbocharger | Alliant Power AP90019 Remanufactured

Why Buy From Valley Fuel Injection

We are a diesel fuel-injection and turbocharger shop in Woodland, CA, rebuilding pumps, injectors and turbos on our own benches since 1993, not a drop-ship storefront. When you call, you talk to the people who test these units. We verify fitment against your engine serial, VIN or build date before anything ships, so the right part arrives the first time.