Bosch Alternator 12V 55A New BXF1250A

The Bosch alternator listed here is a new 12V unit with part number BXF1250A, supplied as an each item and covered by a one year warranty. It is a twin leg alternator with an internal regulator, designed as a Bosch suit unit and identified with a 70 amp power rating in the specifications.

Key mounting and drive details include 59mm inside mounting legs, a 173mm centre-to-centre mount, M8 x 1.25 adjusting hole diameter, 8mm pivot hole diameter, and a pulley section A with 64mm outside diameter. The unit weighs 8.4kg and is described as a Bosch alternator 12V 55A.

This alternator is listed for fitment across a range of Ford, Kubota and Nissan applications, including Ford Bronco, Ford Cortina, Kubota Series-B and Nissan XFN references in the supplied fitment data. Because alternator mounting and electrical requirements need to match exactly, the part number BXF1250A and the physical measurements should be checked carefully before ordering.

Key Features

• New alternator
• 12V electrical system
• Internal regulator
• Twin leg mount
• Bosch suit unit
• One year warranty

Specifications

• Part No.: BXF1250A
• Brand: Bosch
• Voltage: 12
• Power Rating (Amp): 70
• Type: Alternator
• New / Reman.: New
• Regulator Type: Internal
• Alternator Mount: Twin Leg

Fitment references supplied

• Ford Bronco
• Ford Cortina
• Ford F-100
• Ford F-150
• Ford F-250
• Ford F-350
• Ford Fairlane
• Ford Fairmont

Application and Buying Notes

Before buying, compare the part number BXF1250A with the unit you are replacing and check the mounting layout against the listed 59mm inside mounting legs and 173mm centre-to-centre mount. The alternator also uses an internal regulator, so matching the regulator type is important when replacing an existing unit.

The pulley and mounting details matter just as much as the electrical rating. This unit is listed with a 12V system, 70 amp power rating, A section pulley, 64mm pulley outside diameter, M8 x 1.25 adjusting hole, and 8mm pivot hole. If any of these differ from your current alternator, the unit may not install correctly without further confirmation.

The supplied fitment references cover several Ford, Kubota and Nissan applications, including Ford Bronco, Ford Cortina, Kubota Series-B and Nissan XFN references. Even with those references, it is still best practice to confirm the application by model, year, engine arrangement and existing alternator details before purchase.

The unit is new, weighs 8.4kg and carries a one year warranty. That makes it a straightforward replacement option where the application and mounting points line up, but it is still wise to verify the physical dimensions and electrical setup on the vehicle rather than relying on appearance alone.

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 BXF1250A 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 59mm, Power Rating (Amp) 70, Pulley Section A, Suits Unit Make Bosch, Alternator Mount Twin Leg, New / Reman. New, Weight 8.4kg.

Additional published details for cross-checking include Product Group 1 ROTATING ELECTRICAL, Part No. BXF1250A, Brand BOSCH, Description Bosch Alternator 12V 55A, Adjusting Hole Diameter M8 x 1.25, Pivot Hole Diameter 8, Pulley Outside Diameter 64mm, Regulator Type Internal, Voltage 12, Mount Cnt to Cnt 173mm.

Bosch Alternator 12V 55A. Part number BXF1250A 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 Twin 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 BXF1250A, 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.

Compatibility note: Confirm compatibility using part number BXF1250A, the 12V internal regulator setup, the 70 amp rating, and the listed mounting and pulley dimensions before ordering.

FAQ

What is the part number for this alternator?

The part number is BXF1250A. For this listing, part number BXF1250A is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FORD BRONCO, FORD BRONCO 1981, FORD BRONCO 1982. These details should still be checked against the original unit before ordering.

Is this alternator new or remanufactured?

It is listed as new. For this listing, part number BXF1250A is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FORD BRONCO, FORD BRONCO 1981, FORD BRONCO 1982. These details should still be checked against the original unit before ordering.

What voltage does this alternator use?

It is a 12V alternator. For this listing, part number BXF1250A is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FORD BRONCO, FORD BRONCO 1981, FORD BRONCO 1982. These details should still be checked against the original unit before ordering.

Does it have an internal regulator?

Yes, the regulator type is internal. For this listing, part number BXF1250A is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FORD BRONCO, FORD BRONCO 1981, FORD BRONCO 1982. These details should still be checked against the original unit before ordering.

What mounting details are listed?

It is a twin leg alternator with 59mm inside mounting legs, 173mm centre-to-centre mount, M8 x 1.25 adjusting hole diameter, and an 8mm pivot hole diameter. For this listing, part number BXF1250A is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FORD BRONCO, FORD BRONCO 1981, FORD BRONCO 1982. These details should still be checked against the original unit before ordering.

Which fitment groups are supplied?

The supplied fitment references include Ford, Kubota Series-B and Nissan XFN applications, along with broader Ford model references such as Bronco, Cortina, F-100, F-150, F-250, F-350, Fairlane, Fairmont, Falcon, Landau, LTD, Mustang and Transit. For this listing, part number BXF1250A is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include FORD BRONCO, FORD BRONCO 1981, FORD BRONCO 1982. These details should still be checked against the original unit before ordering.