OEX Alternator HXA081 – 12V 80A Hitachi Style with 50cc Vacuum Pump

The OEX HXA081 is a heavy-duty 12V, 80A Hitachi-style alternator featuring a 50cc vacuum pump and internal regulator, engineered to fit a wide range of Isuzu, Nissan, Holden, and TCM diesel trucks, 4x4s, and off-highway machinery. With robust OE-quality construction, high output, and a large B-section pulley, this alternator is ideal for hard-working commercial fleets, classic Isuzu Bighorn, Trooper, ELF, Holden Rodeo, Jackaroo, and Nissan Atlas. The HXA081 comes with a 3-year passenger/1-year commercial warranty and is sourced from ISO-certified suppliers—perfect for demanding New Zealand conditions.

Features:

• 12V, 80A output for reliable, high-load charging

• 50cc vacuum pump for diesel brake systems (confirm compatibility before ordering)

• Large 82mm B-section pulley, internal regulator (IR9 pin)

• Twin-leg mount, 169mm centres, 82mm mounting legs

• Hitachi style for direct OE replacement in trucks and heavy vehicles

• Robust build—ideal for commercial, agricultural, and industrial applications

• 3-year passenger / 1-year commercial nationwide warranty

Specifications:

• Voltage: 12V

• Amperage: 80A

• Suits Unit Make: Hitachi

• Pulley: B Section, 82mm outside diameter

• Regulator Type: Internal (IR9 pin)

• Pivot Hole Diameter: 10mm

• Adjusting Hole Diameter: M8x1.25

• Inside Mounting Legs: 82mm

• Mount Centres: 169mm

• Alternator Mount: Twin Leg

• Rotation: CW

• Weight: 7.52kg

• With 50cc Vacuum Pump (confirm with original unit)

• New / Remanufactured: New

OEM Part No.: HXA081
Note: Has 50cc vacuum pump. Can use HXA119 as an alternative (verify vehicle compatibility and plug type).
Fits:

• Isuzu:

  • Bighorn UBS69GW 3.1L 4JG2-T, Trooper UBS55/69 2.8L/3.1L 4JB1-T/4JG2-T, ELF (various, 2.8L/3.1L/3.3L/3.9L), Journey BL36/46, MU UCS55/69, N Series (NHR69, NKR69, NHS69, NPR59, NPS300, etc. 2.8L–3.9L Diesel, 1980–2007)

• Nissan:

  • Atlas (AHR69, AHS69, AKR69, BKR69, M2F23, M4F23, SM2F23, SM4F23, SM6F23, TF22, TGF22, YHR69, YKR69; 2.3L TD23, 3.1L 4JG2-T)

• Holden:

  • Jackaroo UBS55/69 2.8L/3.1L Turbo Diesel, Rodeo TFR/TFS series 2.5L/2.8L/3.0L Diesel, Monterey UBS69

• TCM:

  • 820-2, FHD20/25/30 3.3L 4BC2 Diesel Loader/Forklift (with B section pulley, 3-terminal plug, 50cc vac pump—confirm all specs)

• Other:

  • Suitable for 4JB1 standalone engines, off-highway, and agricultural machinery (confirm plug, vacuum pump, mounting)

• Always check original alternator, plug, vacuum pump, and mounting dimensions for direct fit.