This is the Holset 3592016HX, an HX30W turbocharger for the Cummins 4BT 3.9L, remanufactured by Holset (Cummins Turbo Technologies). The W in HX30W means it is a wastegated turbo. Catalogs list it for the 110 hp 4BT under Holset and Cummins numbers 3592015 and 3592016, and it crosses to Cummins 3800709 and 3802798. The new version of the same turbo is Holset 3592016H.

The 4BT went into many trucks and industrial machines, and not all of them used this turbo. Case lists it as J592015, J802798 and JR802798, and Komatsu lists it as 6732-81-8200 and 6732-81-8900. Low boost, oil in the intake piping, shaft play or a seized wastegate are the usual reasons to replace it. A refundable core applies, so keep your old turbo.

Specifications

Fits / Applications

• Cummins 4BT 3.9L, 110 hp, with the Holset HX30W wastegated turbocharger
• Case equipment with the 4BT that lists turbo J592015, J802798 or JR802798
• Komatsu equipment that lists turbo 6732-81-8200 or 6732-81-8900
• Old turbo tag reads 3592015, 3592016, 3537033, 3537562, 3538288, 3539710, 3590127, 3593089 or 3593090
• Confirm by engine serial number and CPL

Fit new gaskets, flush or replace the oil feed line, make sure the oil drain is clear, and prime the turbo with clean engine oil before the first start. Change the engine oil and filter and clean the intake piping.

Part Numbers & Cross Reference

Holset 3592016HX  ·  Holset new version 3592016H  ·  Holset / Cummins 3592015  ·  Holset / Cummins 3592016  ·  Cummins 3800709  ·  Cummins 3802798  ·  Cummins remanufactured numbers 3800709RX, 3800709NX, 3802798RX, 3802798NX  ·  Holset 3537033, 3537562, 3538288, 3539710, 3590127, 3593089, 3593090  ·  Case J592015, J802798, JR802798  ·  Komatsu 6732-81-8200, 6732-81-8900

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

Will the 3592016HX fit my Cummins 4BT?

It fits the 4BT 3.9L that left the factory with the Holset HX30W numbered 3592015 or 3592016, Cummins 3800709 or 3802798. Call 530-668-0818 with your engine serial number or old turbo tag and we will check it.

What numbers does it replace?

Holset and Cummins 3592015, 3592016, 3800709 and 3802798, plus Holset 3537033, 3537562, 3538288, 3539710, 3590127, 3593089 and 3593090. The new version of the same turbo is Holset 3592016H.

Does it fit Case and Komatsu machines?

Catalogs cross it to Case J592015, J802798 and JR802798 and to Komatsu 6732-81-8200 and 6732-81-8900. Match the number on your old turbo, or call 530-668-0818 with the machine model and engine serial number.

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

It is remanufactured by Holset. A refundable core charge applies, and it comes back when we receive your old turbo.

Related Parts

• Cummins 6BTA 5.9L Marine 355 hp HX40 Turbocharger | Holset 3536621H New (Cummins 3802829)
• Cummins 4BT 3.9L / ISB / QSB 12-Volt VP30 Pump | 0470004018 | Bosch Authorized Remanufactured by VFI
• Cummins 4BT 3.9L & 6BT 5.9L, Case & Case IH Mechanical Fuel Injector (3929490, J929490) | Bosch 0432131749 New
• Cummins 4BT 3.9L, Case, Kobelco VE4 Injection Pump 0460424081 | Bosch Authorized Remanufactured by VFI

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.