This is the Alliant Power AP90948, a Holset HE400VG style variable geometry turbocharger remanufactured by Alliant Power and supplied with the electronic actuator. It replaces Holset 5458937 (Cummins 5459711) on the Cummins X15 and ISX15 at the EPA17 emissions level, and it is also listed for the QSX15. A refundable core applies.

Catalogs also list Holset 5458937 as 5358003, 5358483, 5358484, 5351565, 5351566 and 5350586. The 15 liter Cummins used more than one HE400VG turbocharger: Holset 5458936 (Cummins 5459710) is a different one, and earlier ISX15 engines use other turbochargers again. Go by the number on the old turbo, not the year. The same turbo without the actuator is Alliant Power AP90048.

Specifications

Fits / Applications

• Cummins X15 and ISX15, EPA17 emissions level
• Engines built with Holset HE400VG turbo 5458937 (Cummins 5459711), also listed as 5358003, 5358483, 5358484, 5351565, 5351566 and 5350586
• Also listed for the Cummins QSX15 with the same turbo number
• Supplied with the electronic actuator
• Not the same turbo as Holset 5458936 (Cummins 5459710): match by engine serial number (ESN) and the old turbo’s data plate

Prime the turbo with clean engine oil before the first start, fit new oil feed and drain gaskets, and check the oil feed line, the drain and the charge air cooler for debris from the old turbo. Find out why the old turbo failed before this one goes on.

Part Numbers & Cross Reference

Alliant Power AP90948  ·  Alliant Power, same turbo without actuator AP90048  ·  Holset 5458937  ·  Cummins 5459711  ·  Cummins ReCon 5459711RX  ·  Cummins / Holset, older numbers 5358003, 5358483, 5358484, 5358485, 5351565, 5351566, 5352143, 5352144, 5352145, 5350586, 5327132, 5454982, 5454983, 5454984

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

Does the AP90948 come with the actuator?

Yes. It is supplied with the electronic actuator. If your actuator is good and you only need the turbo, the same turbo without the actuator is Alliant Power AP90048.

What numbers does the AP90948 replace?

Holset 5458937 and Cummins 5459711, which catalogs also list as 5358003, 5358483, 5358484, 5351565, 5351566 and 5350586. It is remanufactured by Alliant Power and a refundable core applies.

Which engines does the AP90948 fit?

Catalogs list it for the Cummins X15 and ISX15 at the EPA17 emissions level, and for the QSX15, where the engine carries Holset HE400VG turbo 5458937. Call 530-668-0818 with your engine serial number and we will confirm the match.

Is it the same as the turbo that replaces Cummins 5459710?

No. Holset 5458936 (Cummins 5459710) is a different HE400VG turbocharger. AP90948 replaces Holset 5458937 and Cummins 5459711, so check the number on your old turbo.

Related Parts

• Cummins ISX15 EPA13 HE400VG Turbocharger with Actuator | Alliant Power AP90925 Remanufactured (5458272)
• Cummins ISX15 EPA07 HE500VG Turbocharger with Actuator | Alliant Power AP90960 Remanufactured (OE 4309076)
• Cummins ISX15 EPA07 HE500VG Turbocharger without Actuator | Holset 5456817HX Remanufactured (OE 4309077)
• Cummins X15 & ISX15 EPA17 to EPA24 XPI Common-Rail Fuel Injector | Alliant Power AP55128 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.