HE600WG HX60W 4090043 Turbo for Cummins ISX2 Signature 600 | New

Name: HE600WG HX60W 4090043 Turbocharger for Cummins ISX2 Signature 600
Brand: Cummins
SKU: 4043620, 4090043, 4025320, 4025320NX, 4025320RX, 4089760, 5324942

HE600WG HX60W 4090043 Turbocharger for Cummins ISX2 Signature 600

The HE600WG / HX60W is the Holset turbocharger for the Cummins ISX2 non-EGR, ISX3, and Signature 600 engines — the highest-output ISX platform at 600 HP. This is a large-frame turbo with a water-cooled bearing housing designed for the extreme exhaust temperatures at 600 HP. It fits 2006-2008 ISX2 applications as well as Signature ISX3 and some Volvo trucks and Komatsu industrial gen sets running the ISX2. Holset assembly 4043620, Cummins OEM 4090043. Our HE600WG ships new with all new components, dynamically balanced, with gaskets. We supply shops, fleets, and distributors.

Turbo Model

HE600WG / HX60W (fixed geometry, water-cooled)

OEM / Interchange Numbers

4043620, 4090043, 4025320, 4025320NX, 4025320RX, 4089760, 5324942

Application

2006-2008 Cummins ISX2, Signature ISX3, Signature 600 (also Volvo, Komatsu S500)

Service & Support

1-Year Unlimited-Mileage Warranty
US Stock, Fast Dispatch
Bulk Orders Welcome
White-Label Support
Fully Certified

Get a Quick Quote

FAQ

The HE600WG / HX60W (4090043) fits the Cummins ISX2 non-EGR, Signature ISX3, and Signature 600 engines at 600 HP. It also fits some Volvo trucks and Komatsu S500 gen sets with the ISX2. OEM numbers include 4043620, 4025320, 4089760, 5324942, 3800997, 3800770, and 3800652.

No. The HX55W (4046127) is a different, smaller-frame turbo also used on 600 HP ISX engines. They serve different ISX generations and do not interchange. Match by part number on the turbo nameplate.

Yes. The bearing housing has coolant passages in addition to oil lubrication. Connect both coolant lines and bleed the system during installation.

Brand new, 100% new components, dynamically balanced. Ships with gaskets. No core charge. One-year unlimited-mileage warranty.

Yes. US stock, volume pricing for shops, fleets, rebuilders, and distributors.

HE600WG / HX60W: The 600 HP ISX Turbo

The HE600WG is the largest turbo in the Cummins ISX lineup. It serves the non-EGR ISX2 and Signature 600 engines — trucks that were built for maximum power before EGR and VGT turbos became standard. At 600 HP, exhaust gas temperatures are extremely high, and this turbo is designed to handle that with a water-cooled bearing housing and heavy-duty materials throughout.

HE600WG vs HX55W — two different 600 HP ISX turbos

Both the HE600WG and the HX55W (4046127) are used on 600 HP ISX engines, but they are different turbos for different ISX generations:

Detail	HE600WG / HX60W (this page)	HX55W
Engine	ISX2 non-EGR, Signature ISX3	ISX2 Signature 600, QSX15
Key part #	4090043 / 4043620	4046127 / 4090042
Frame size	Larger (HX60W frame)	Smaller (HX55 frame)
Bearing cooling	Water + oil	Water + oil

Match by part number on the turbo nameplate. These two turbos are physically different sizes and do not interchange.

Applications

2006-2008 Cummins ISX2 non-EGR trucks
2001-2011 Cummins Signature 600/ISX3 trucks
2001-2004 Volvo trucks with Cummins Signature ISX3
2000-2008 Komatsu Industrial Gen Set S500 with ISX2

Common failure modes

Bearing wear — the 600 HP rating pushes shaft speed and bearing load hard. Bearing wear is the most frequent failure on high-mileage units.
Coolant seal failure — the water-cooled bearing housing uses O-rings that degrade from heat cycling. Replace all coolant seals on install.
Turbine housing cracks — the extreme EGT at 600 HP accelerates thermal fatigue. Inspect the housing for cracks at every service interval.

Installation

This is a large, heavy turbo. Use a hoist or get help during installation.
Replace coolant O-rings and fittings at the bearing housing. Bleed coolant system.
Flush oil feed line. Replace oil drain gasket.
Prime with clean oil, hand-spin shaft, idle 3-5 minutes before loading.

See our quality process for details.