IHI RHB52W VI58 Turbocharger Assembly 8944739540 for Isuzu 4JB1T 4BD1T 2.8L Trooper KB280
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| Turbo Model | RHB52W / RHB5 |
| IHI Internal Model | VI58 |
| Core Part Number | 8944739540 / 8944739541 |
| Compatible Engine Displacement | 2.8L |
| Compatible Engine Series | Isuzu 4JB1 / 4BD1 series |
| Compressor Wheel Type | Aluminum alloy casting |
| Turbo Wheel Type | High-Nickel Alloy (Inconel 713C Grade) |
| Bearing System | Full floating bearing |
| Cooling Type | Oil Cooled |
| Exhaust Bypass Valve | Built-in electric/pneumatic actuator (depending on specific VI generation) |
| Rotation Direction | Standard clockwise (viewed from the compressor end) |
| Balance Grade | G2.5 / G1.0 (High Speed Balanced) |
| Maximum Working Speed | Approx. 180,000 - 200,000 RPM |
| Installation Flange Type | T3/Special Isuzu Flange |
Manufacturer No.
RHB52W-52002P15NRBRL3911EZVI581515A029VF420088
OEM Part No.
8944739540894473954189713972438970192920VG420014
Engine Part No.
4JB1T4JB1-CT4BD1T4BD14JJ16WG1
Interchange No.
VF130047VA130047NB150040VD130047VI35VI87
Fitment Vehicles
Isuzu Trooper (Hummer/Hummer H2) 2.8L TD (UBS55) 1987-1991Isuzu KB280DTIsuzu PiazzaOpel Frontera ADaihatsu RockyCaterpillar Construction Equipment (specific model)
Exhaust and Intake System - Industrial Encyclopedia
Original IHI turbocharger assembly, part number 8944739540 (including 8944739541), model RHB52W / VI58. Precisely fits Isuzu 4JB1T, 4JB1-CT, 4BD1T 2.8L diesel engines, widely used in Isuzu Trooper (Hummer/Honker), KB280DT, Opel Frontera A and Daihatsu Rocky models. Replaces OE interchange numbers VF130047, VA130047, NB150040, VD130047, 8970192920. Restore optimal boost pressure, optimize air-fuel ratio, enhance horsepower and torque while reducing fuel consumption and emissions.