Bosch Alternator 12V 55A BXC1233A

The Bosch Alternator 12V 55A is a new rotating electrical component with internal regulation and a 55 amp power rating. It is identified by part number BXC1233A and is supplied as each unit, with a listed weight of 5.84kg.

This alternator is a twin leg mount design with an inside mounting leg spacing of 67mm and mount centre to centre measurement of 179mm. The shaft diameter is 17mm, the pivot hole diameter is 10mm, and the adjusting hole diameter is 5/16 UNC.

Bosch lists this unit as a 12V alternator with an internal regulator and a one year warranty. It is described as new, and the stated features include corrosion resistance, quality raw materials, and a reduction drive designed to maintain continual speeds for easier starting.

Key Features

• New Bosch alternator
• 12V, 55 amp output
• Internal regulator
• Twin leg mount
• Corrosion resistant construction
• Reduction drive design

Specifications

• Brand: Bosch
• Product type: Alternator
• Voltage: 12V
• Power rating: 55A
• Part No.: BXC1233A
• Warranty: One year
• Mount type: Twin leg
• Inside mounting legs: 67mm

Fitment information provided

• Listed fitment includes Chrysler, Chrysler Centura, Chrysler Galant, Chrysler Lancer, Chrysler Sigma, Chrysler Valiant, Chrysler Valiant Charger, Dodge, Dodge Phoenix, Mitsubishi, Mitsubishi Colt, Mitsubishi Sigma, and Mitsubishi Sigma Scorpion.
• Sample application coverage includes Chrysler Centura 1975 to 1979, Chrysler Galant 1972 to 1976, Dodge Phoenix 1960 to 1970, and Mitsubishi Colt 1981 to 1990.
• Fitment data is broad across several models and years, so matching the part number and mounting dimensions remains essential before ordering.

Application and Buying Notes

Before buying, compare the listed part number BXC1233A, the 12V system voltage, and the 55A output with the unit being replaced. Alternators can look similar across makes and models, but the mounting layout and shaft dimensions must also line up for a proper installation.

Pay close attention to the twin leg mount design, the 67mm inside mounting legs, the 179mm mount centre to centre measurement, and the 17mm shaft diameter. The pivot hole diameter of 10mm and the 5/16 UNC adjusting hole are also important checks when confirming physical compatibility.

If the vehicle has had previous charging system repairs or changes, the safest approach is to compare the old alternator directly against the listed specifications. The internal regulator, new construction, and 5.84kg weight are useful identification points when matching like for like.

This alternator is described as corrosion resistant and fitted with a reduction drive, which are useful construction details, but they do not replace dimensional checking. A confirmed fit still depends on the application details, mounting style, and the exact replacement part number.

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 BXC1233A 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, Inside Mounting Legs 67mm, Power Rating (Amp) 55, Shaft Diameter 17mm, Voltage 12, Mount Cnt to Cnt 179mm, Weight 5.84kg, Product Group 1 ROTATING ELECTRICAL.

Additional published details for cross-checking include Part No. BXC1233A, Brand BOSCH, Description Bosch Alternator 12V 55A, Adjusting Hole Diameter 5/16 UNC, Pivot Hole Diameter 10, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Twin Leg, New / Reman. New.

Bosch Alternator 12V 55A. Part number BXC1233A 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 Twin Leg. Regulator type is Internal. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXC1233A, 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 part number BXC1233A, 12V system voltage, 55A output, and the mounting dimensions before ordering. If there is any doubt, compare the removed unit side by side with the listed measurements and application details.

FAQ

What is the part number for this Bosch alternator?

The listed part number is BXC1233A. For this listing, part number BXC1233A is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CHRYSLER CENTURA, CHRYSLER CENTURA 1975, CHRYSLER CENTURA 1976. These details should still be checked against the original unit before ordering.

Is this alternator new or remanufactured?

It is listed as new, not remanufactured. For this listing, part number BXC1233A is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CHRYSLER CENTURA, CHRYSLER CENTURA 1975, CHRYSLER CENTURA 1976. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator with a 55A power rating. For this listing, part number BXC1233A is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CHRYSLER CENTURA, CHRYSLER CENTURA 1975, CHRYSLER CENTURA 1976. These details should still be checked against the original unit before ordering.

Does it have an internal regulator?

Yes. The regulator type is listed as internal. For this listing, part number BXC1233A is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CHRYSLER CENTURA, CHRYSLER CENTURA 1975, CHRYSLER CENTURA 1976. These details should still be checked against the original unit before ordering.

What mounting style does it use?

It uses a twin leg mount with 67mm inside mounting legs and 179mm mount centre to centre. For this listing, part number BXC1233A is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CHRYSLER CENTURA, CHRYSLER CENTURA 1975, CHRYSLER CENTURA 1976. These details should still be checked against the original unit before ordering.

Which vehicles are listed in the fitment data?

Fitment data includes Chrysler, Chrysler Centura, Chrysler Galant, Chrysler Lancer, Chrysler Sigma, Chrysler Valiant, Chrysler Valiant Charger, Dodge, Dodge Phoenix, Mitsubishi, Mitsubishi Colt, Mitsubishi Sigma, and Mitsubishi Sigma Scorpion. For this listing, part number BXC1233A is the main reference point. Listed voltage is 12. Listed output rating is 55. Published fitment references include CHRYSLER CENTURA, CHRYSLER CENTURA 1975, CHRYSLER CENTURA 1976. These details should still be checked against the original unit before ordering.