OEX BXA057 12V 80A Bosch Style Alternator, Twin Leg Mount, 6 Groove Pulley, Internal Regulator, New Unit
The BXA057 from OEX is a new 12V 80A alternator in Bosch style with a twin leg mount, 6-groove pulley, and internal regulator. It features a 55mm pulley outside diameter, 168mm mount centre to centre, 41mm inside mounting legs, M8x1.25 adjusting hole, and M10x1.25 / 10.5mm pivot hole diameter. Pin code IR115. Backed by a 3-year passenger and 1-year commercial warranty.
Product overview
The BXA057 is a direct replacement alternator for applications requiring a Bosch-style unit with a twin leg mount and internal regulator at 80A output. The twin leg mount configuration distinguishes this unit from quad leg Bosch-style alternators in the OEX range, so confirming the mount type against the original unit before ordering is important.
The 6-groove pulley suits multi-ribbed belt drive systems found in the engine applications this unit is designed to replace. Note that the adjusting hole and pivot hole use different thread specifications on this unit: M8x1.25 for the adjusting hole and M10x1.25 / 10.5mm for the pivot hole. Both should be confirmed against the original unit before ordering. OEX products are sourced from market-leading original equipment manufacturers and aftermarket suppliers, and this unit carries a 3-year warranty for passenger vehicle applications and a 1-year warranty for commercial applications.
Features and benefits
New unit, not remanufactured: The BXA057 is supplied as a new alternator, providing confidence in output performance and service life from the point of installation.
80A output at 12V: Delivers 80A of charging output at 12V, suited to the electrical demands of the engine applications this unit is designed to replace.
Twin leg mount: The twin leg mounting configuration with 168mm centre-to-centre measurement and 41mm inside mounting legs distinguishes this unit from quad leg Bosch-style alternators. Confirm the mount type on your original unit before ordering.
6-groove pulley: The 55mm outside diameter 6-groove pulley suits multi-ribbed belt drive systems found in the applications this alternator is built to replace.
Internal regulator: Fitted with an internal voltage regulator (pin code IR115), eliminating the need for an external regulator in compatible applications.
Differing adjusting and pivot hole specifications: The adjusting hole is M8x1.25 and the pivot hole is M10x1.25 / 10.5mm. Both dimensions should be confirmed against the original unit before ordering to ensure correct fitment.
3-year passenger warranty: Backed by a 3-year warranty for passenger vehicle applications and a 1-year warranty for commercial applications.
Technical specs
| Specification |
Detail |
| SKU |
BXA057 |
| Brand |
OEX |
| Voltage |
12V |
| Power Rating |
80A |
| Suits Unit Make |
Bosch Style |
| Alternator Mount |
Twin Leg |
| Mount Centre to Centre |
168mm |
| Inside Mounting Legs |
41mm |
| Adjusting Hole Diameter |
M8x1.25 |
| Pivot Hole Diameter |
M10x1.25 / 10.5mm |
| Pulley Outside Diameter |
55mm |
| Pulley Section |
6 Groove |
| Regulator Type |
Internal |
| Pin Code |
IR115 |
| Condition |
New |
| Weight |
5.7kg |
| Warranty |
3 Years Passenger, 1 Year Commercial |
Frequently asked questions
Is the BXA057 a new or remanufactured unit?
The BXA057 is a new alternator, not a remanufactured unit.
What warranty does the BXA057 carry?
The BXA057 carries a 3-year warranty for passenger vehicle applications and a 1-year warranty for commercial applications.
What is the difference between the twin leg and quad leg mount on Bosch style alternators?
The twin leg mount uses two mounting legs, while the quad leg mount uses four. These configurations are not interchangeable, so confirming the mount type on your original unit before ordering is essential. The BXA057 uses a twin leg mount with 168mm centre-to-centre and 41mm inside mounting legs.
What pulley type does the BXA057 use?
The BXA057 uses a 6-groove pulley with a 55mm outside diameter, suited to multi-ribbed belt drive systems in the applications this unit is designed to replace. Confirm your belt groove count matches before ordering.
What are the key dimensions I need to confirm before ordering?
The key dimensions for fitment confirmation are the mount centre-to-centre measurement (168mm), inside mounting legs (41mm), pulley outside diameter (55mm), adjusting hole diameter (M8x1.25), and pivot hole diameter (M10x1.25 / 10.5mm). The mount type is twin leg and the pin code is IR115. Contact us if you need assistance confirming fitment for your specific application.
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