OEX Alternator 12V 55A Mitsubishi Style MXA299

The OEX Alternator MXA299 is a 12V, 55A unit in Mitsubishi style, supplied new and sold each. It is designed with an internal regulator and uses a single leg alternator mount, with a mount centre-to-centre measurement of 166mm, a mount leg thickness of 51mm, and a pivot hole diameter of 9mm.

For installation planning, the alternator uses a pulley outside diameter of 73mm, a pulley section of A, a shaft dimension of 17mm, and an adjusting hole with M8 x 1.25 thread. These are the key physical checks to confirm before ordering, especially where the original unit has been changed or the mounting arrangement has been altered.

OEX states this alternator is made using OE components for fit and function, and that OEX products are sourced from market leading original equipment manufacturers and aftermarket suppliers. It is also backed by a 3yr passenger / 1yr commercial warranty, which gives a clear service context for buyers matching a replacement alternator to the original application.

Key Features

• 12V alternator with 55A output
• Part No. MXA299
• Mitsubishi style unit
• Internal regulator
• New unit, sold each
• Single leg alternator mount

Specifications

• Voltage: 12V
• Power rating: 55A
• Regulator type: Internal
• Alternator mount: Single leg
• Mount centre to centre: 166mm
• Mount leg thickness: 51mm
• Pivot hole diameter: 9mm
• Adjusting hole: M8 x 1.25

Verified fitment details

• Verified application family includes Bobcat equipment.
• Reported fitment examples include Bobcat 1080C, 1600, 220, 225, 231, 2400, 3022, 3023, 331/E, 334C, 337/C, 341/C, 543, 553, 751F, 753, 753/H/L, 763/C/F/G, 763H-C/F/G, 773C/F/G, 7753, 843, 843/B, and 843HC.
• Fitment data also includes year-specific entries for Bobcat 1080C and 1600, including multiple model years listed against those machines.
• Match the alternator by part number, mounting layout, pulley size, regulator type, and overall physical dimensions before purchase.

Application and Buying Notes

Alternators need to match more than just voltage, and the MXA299 gives you several practical identifiers to check: 12V, 55A, internal regulator, single leg mount, 166mm mount centre-to-centre, and a 73mm pulley outside diameter. If any of those details differ from the unit being replaced, the safest approach is to stop and compare the old part before fitting.

The alternator is described as Mitsubishi style and suited to Mitsubishi units, but the fitment list also includes a range of Bobcat applications. That makes the part number MXA299 especially important. If the machine has had a previous replacement, the original alternator may not be the same shape or mounting pattern even if the machine model is listed.

When checking compatibility, pay attention to the mounting leg thickness of 51mm, pivot hole diameter of 9mm, and the M8 x 1.25 adjusting hole. These measurements affect whether the alternator will physically align in the bracket and belt path. The shaft dimension of 17mm and pulley section A are also important where the pulley and belt arrangement must remain unchanged.

This is a new alternator, not a remanufactured unit, and it carries OEX warranty support of 3 years for passenger use and 1 year for commercial use. That warranty context is useful, but it does not replace the need to verify the correct application. For machinery and fleet work, the safest buying process is to compare the existing alternator, confirm the connector and mount arrangement, and then order against MXA299.

Before supply, the safest approach is to confirm the original unit details against the listed part number, voltage, output rating, mounting arrangement, and pulley configuration. That checking process is standard practice in the parts trade because visually similar units can still differ in service-critical ways.

For workshop, fleet, and equipment applications, accurate identification of part number MXA299 helps avoid unnecessary freight, additional labour, and vehicle or machine downtime. Where the application is not straightforward, the original unit, OEM reference, or workshop records should be used as the primary confirmation point.

Relevant published details for this unit include Type ALTERNATOR, Unit of Measure EACH, Warranty 3yr Passenger 1yr Commercial, Mount Leg Thickness 51mm, Pivot Hole Diameter 9, Pulley Outside Diameter 73mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 166mm, Shaft Dimension 17.

Additional published details for cross-checking include Product Group 2 ALTERNATORS, Part No. MXA299, Brand OEX, Description OEX Alternator 12V 55A Mitsubishi Style, Adjusting Hole Diameter M8 x 1.25, Pin Code IR40, Power Rating (Amp) 55, Pulley Section A, Suits Unit Make Mitsubishi.

OEX Alternator 12V 55A Mitsubishi Style. Part number MXA299 should be checked first. Listed voltage is 12. Listed output rating is 55. These details form the core reference points used by parts interpreters when confirming the correct replacement.

Mount style is Single Leg. Regulator type is Internal. Pulley configuration is A. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number MXA299, the normal identification sequence is part number, electrical rating, mounting arrangement, connector or terminal style, and pulley or drive details. Using those checkpoints helps confirm that the listed unit matches the service requirement rather than only looking similar.

For a alternator in workshop, fleet, trade, agricultural, or construction service, the listed voltage 12 and output 55 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Compatibility note: Confirm fitment by matching the part number MXA299, the 12V 55A specification, the internal regulator, and the listed mount and pulley measurements against the vehicle or equipment already fitted.

FAQ

Is this alternator new or reconditioned?

This alternator is listed as new.

What is the output rating?

It is rated at 55A and operates at 12V.

Does it have an internal regulator?

Yes. The regulator type is listed as internal.

What part number should I match for ordering?

The part number is MXA299.

What mounting details are listed?

The alternator is a single leg mount with 166mm mount centre-to-centre, 51mm mount leg thickness, and a 9mm pivot hole diameter.

What warranty is supplied?

OEX lists a 3yr passenger / 1yr commercial warranty.