Bosch Alternator 12V 70A BXD1233N

The Bosch alternator listed here is a 12V, 70A unit with part number BXD1233N. It is a new alternator, supplied each, with an internal regulator and a reduction drive arrangement designed for easier starting and consistent operation in the correct application.

Key physical details to check before ordering include the 62mm pulley outside diameter, 5 groove pulley section, single leg alternator mount, 165mm mount centre-to-centre measurement, and 58mm mount leg thickness. These measurements are the sort of details that matter when matching an alternator to the vehicle already in front of you.

This unit is listed with rotation CW and Pin Code IR7, and it carries a one year warranty. The brand is Bosch, and the product is part of the rotating electrical range, so correct identification against the part number and mounting details is still the safest way to confirm suitability.

The fitment information supplied for this alternator includes Toyota Tarago / Estima applications across multiple model years. Even with that application data, the part number BXD1233N and the mounting and pulley details should be checked carefully before purchase.

Key Features

• 12V 70A alternator
• New unit
• Internal regulator
• CW rotation
• 5 groove pulley section
• Single leg mount

Specifications

• Brand: Bosch
• Part No.: BXD1233N
• Voltage: 12V
• Power Rating: 70A
• Pulley Outside Diameter: 62mm
• Pulley Section: 5 Groove
• Mount Cnt to Cnt: 165mm
• Mount Leg Thickness: 58mm

Verified fitment guidance

• Toyota Tarago / Estima
• Toyota Tarago / Estima 1990
• Toyota Tarago / Estima 1991
• Toyota Tarago / Estima 1992
• Toyota Tarago / Estima 1993
• Toyota Tarago / Estima 1994
• Toyota Tarago / Estima 1995
• Toyota Tarago / Estima 1996

Application and Buying Notes

When matching an alternator, the part number BXD1233N is the first checkpoint, followed by the physical details: 12V system voltage, 70A output, single leg mount, 165mm mount centre-to-centre, 58mm mount leg thickness, and a 62mm 5 groove pulley. Those points need to line up with the original unit or the vehicle’s confirmed application.

This alternator uses an internal regulator, so it is intended for vehicles set up for that style of charging control. The CW rotation and Pin Code IR7 are also useful identifiers, especially when comparing a removed unit to the replacement before fitting.

The fitment data provided includes Toyota Tarago / Estima applications across 1990 through 2000. That is helpful, but year alone should not be treated as enough information on its own, because mounting style, pulley configuration, and regulator type still need to match the vehicle.

Because this is a new Bosch alternator, it is supplied as a replacement electrical component rather than a remanufactured unit. If the existing alternator is still fitted, comparing the label, mounting ears, pulley grooves, and overall dimensions will reduce the chance of ordering the wrong part.

Where vehicles have had prior repairs or electrical changes, rely on the part number and the confirmed measurements rather than assuming a direct swap from model name alone. The listed 70A output is the rated power figure for this alternator, so it should be checked against the application’s original specification where possible.

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 BXD1233N 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 One Year, Pin Code IR7, Pulley Outside Diameter 62mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Single Leg, New / Reman. New, Product Group 1 ROTATING ELECTRICAL.

Additional published details for cross-checking include Part No. BXD1233N, Brand BOSCH, Description Bosch Alternator 12V 70A, Mount Leg Thickness 58mm, Power Rating (Amp) 70, Pulley Section 5 Groove, Rotation CW, Voltage 12, Mount Cnt to Cnt 165mm.

Bosch Alternator 12V 70A. Part number BXD1233N should be checked first. Listed voltage is 12. Listed output rating is 70. 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 5 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXD1233N, 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 70 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include TOYOTA TARAGO / ESTIMA, TOYOTA TARAGO / ESTIMA 1990, TOYOTA TARAGO / ESTIMA 1991, TOYOTA TARAGO / ESTIMA 1992. Even with application listings, final confirmation should still be based on the exact unit being replaced and the service requirements of the vehicle or machine.

The listed warranty is One Year. Warranty terms should be considered alongside correct application and part identification, as warranty does not replace fitment confirmation.

Compatibility note: Please confirm fitment by checking part number BXD1233N, the Toyota Tarago / Estima application details, and the listed mounting and pulley measurements before ordering.

FAQ

What is the part number for this Bosch alternator?

The part number listed is BXD1233N.

What voltage and amperage is this alternator?

It is a 12V alternator rated at 70A.

Is this a new or remanufactured unit?

This alternator is listed as new.

What pulley details are listed?

The alternator has a 62mm pulley outside diameter and a 5 groove pulley section.

What type of regulator does it use?

It has an internal regulator.

What fitment is supplied for this part?

The supplied fitment includes Toyota Tarago / Estima applications, with model years shown from 1990 through 2000.