Holset HX25W Turbochargers

What the Holset HX25W is

The HX25W is a wastegated turbo from Holset’s HX range, which Holset began building in 1987 to replace its H Series, with a pneumatic actuator. Holset distributors list it for the Cummins 4BT 3.9 liter Tier 2 in Komatsu PC100 and PC200 and Hyundai R140 excavators (4033351H), the Cummins 4BTA at 116 hp in Case 580 and 588 backhoes and excavators (3596596H), the Iveco 4.5 liter Tier 4B at 110 hp in Case IH Farmall 110A and New Holland TS6 tractors (3786662H) and four-cylinder Sonalika tractors (4033144). The fixed-geometry HX25 has its own page.

This page lists complete HX25W turbos and a CHRA for Cummins, Iveco, Case-New Holland (CNH) and Eicher engines. Each listing here is one exact part number, so match the full number on your turbo’s tag, or call (909) 824-1020 with your engine model and serial number.

Sources: Holset engineering milestones · HX25W for Cummins 4BT (parts distributor) · HX25W for Iveco 4.5 Tier 4B (parts distributor) · HX25W for Cummins 4BTA (parts distributor)

Where the Holset HX25W fits

Engines, years and machines as the Applications tables of the complete turbochargers on this page list them, with the part numbers that fit. Match the number on your turbo’s data plate before ordering, or call (909) 824-1020 and we will match it for you.