Turbocharger 4038790 HX25W For Komatsu PC160-8 Hyundai R150-7 SAA4D107E Engine

Product Name: Holset Diesel Turbocharger

Main OEM Part Number: 4038790

Alternate Part No: 4038791

Model Type: HX25W

Brand: HOLSET

Fit Engine: Komatsu SAA4D107E-1 Diesel Engine

Fit Equipment: Komatsu PC160-8 excavator, Hyundai R150-7 excavator, light wheel loaders, road rollers

1. Construction Machinery: Komatsu PC160-8 hydraulic excavator, Hyundai R150-7 digger, small wheel loaders
2. Municipal Engineering: Road compactors, pavement maintenance vehicles
3. Agricultural Equipment: Medium farm tractors, grain combine harvesters
4. Stationary Power: Small & medium industrial diesel generator sets

Single-channel nodular cast iron turbine shell with outstanding thermal fatigue resistance. Stable under long continuous high exhaust temperature digging operation, resistant to cracking and deformation under frequent load fluctuations of small and medium excavators.

Equipped with silver metal diaphragm wastegate actuator connected by black high-temperature rubber hose, automatically limits boost pressure to avoid overboost damage to engine internal components, maintains stable low-speed torque during light digging and uphill working conditions.

Aluminum alloy compressor impeller undergoes high-speed dynamic balance calibration, high air intake efficiency matching 4-cylinder 4D107 engine displacement. Significantly improves low-speed intake volume, enhances engine low-end torque, reduces black smoke during acceleration and heavy-load startup.

Dual full-floating sliding bearings matched with multi-layer fluorine rubber high-temperature composite oil seals. Excellent anti-oil-leak performance, extends service life under all-day light construction duty, lowers regular maintenance frequency.

All exhaust flange, straight air inlet/outlet, oil supply and return ports fully consistent with original Holset turbocharger. Direct bolt-on replacement without cutting or modification, perfectly compatible with SAA4D107E engine of PC160-8 / R150-7 excavator.

Multiple global air & sea freight channels available. Each turbocharger is pre-filled with anti-rust lubricating oil, packed with thick shockproof foam carton, attached with factory full inspection report and trackable logistics number for worldwide delivery.

Import duties, consumption tax and customs clearance fees are not included in quotation and freight cost. Buyers shall bear all relevant customs charges in accordance with local import regulations.

This HX25W wastegate turbocharger with OEM part number 4038790 is interchangeable with 4038791, specially designed for Komatsu PC160-8 and Hyundai R150-7 excavator SAA4D107E 4-cylinder engine. It adopts Holset mature HX25 series design, high-temperature resistant cast iron housing and OEM-level dynamic balance calibration. It is a core overhaul replacement spare part for small-medium construction machinery, effectively cutting equipment downtime and long-term maintenance expenses.