Bosch Alternator 12V 70A BXH1204N New Internal Regulator Twin Leg

The Bosch BXH1204N alternator is a new 12V unit rated at 70A, supplied as each and identified with pin code IR49. It uses an internal regulator and a twin leg alternator mount, which are important details to confirm before ordering, especially when replacing a Bosch rotating electrical unit.

This alternator has an 84mm pulley outside diameter, an AA pulley section, and clockwise rotation. The inside mounting legs measure 80mm, so physical mounting dimensions should be checked against the vehicle’s existing unit before purchase rather than assuming interchange from appearance alone.

It weighs 7.96kg and carries a one year warranty. The stated product group is rotating electrical, and the unit is listed as new, not remanufactured, which may matter for buyers comparing service life expectations and installation preferences.

Key Features

• 12V, 70A Bosch alternator
• New unit, not remanufactured
• Internal regulator
• Twin leg alternator mount
• Pin code IR49
• 84mm pulley outside diameter

Specifications

• Brand: Bosch
• Part No.: BXH1204N
• Type: Alternator
• Power rating: 70 amp
• Voltage: 12V
• Unit of measure: Each
• Regulator type: Internal
• Alternator mount: Twin leg

Fitment details provided

• Nissan Patrol
• Nissan Patrol 1988
• Nissan Patrol 1989
• Nissan Patrol 1990
• Nissan Patrol 1991
• Nissan Patrol 1992
• Nissan Patrol 1993
• Nissan Patrol 1994

Application and Buying Notes

Before ordering, compare the Bosch part number BXH1204N, the 12V 70A rating, and the IR49 pin code with the unit being removed from the vehicle. Matching the electrical rating is only one part of the job; alternator mounts, pulley dimensions, and regulator style also need to line up for the replacement to be suitable.

The twin leg mounting style and 80mm inside mounting legs are useful physical checkpoints when checking the old alternator. If the mounting ears, bracket spacing, or pulley setup differs, the unit may not install correctly even if the Bosch brand and 12V rating appear similar.

The 84mm pulley outside diameter and AA pulley section should be compared carefully with the existing drive layout. Pulley details affect belt alignment and drive compatibility, so it is worth confirming these measurements against the removed alternator before fitting.

This alternator is listed as new and includes a one year warranty. For buyers maintaining a vehicle in demanding conditions, the corrosion resistant construction and reduction drive feature may be relevant, but they should still be considered alongside the exact application and physical fit rather than as a substitute for checking dimensions.

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 BXH1204N 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 IR49, Pulley Outside Diameter 84mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Twin Leg, Weight 7.96kg, Product Group 1 ROTATING ELECTRICAL.

Additional published details for cross-checking include Part No. BXH1204N, Brand BOSCH, Description Bosch Alternator 12V 70A, Inside Mounting Legs 80mm, Power Rating (Amp) 70, Pulley Section AA, Rotation CW, Voltage 12, New / Reman. New.

Bosch Alternator 12V 70A. Part number BXH1204N 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 AA. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXH1204N, 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 BXH1204N, the 12V 70A specification, IR49 pin code, twin leg mount, and the 84mm pulley dimensions against the vehicle’s existing alternator before purchase.

FAQ

What is the part number for this Bosch alternator?

The part number is BXH1204N. For this listing, part number BXH1204N is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include NISSAN PATROL, NISSAN PATROL 1988, NISSAN PATROL 1989. 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 BXH1204N is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include NISSAN PATROL, NISSAN PATROL 1988, NISSAN PATROL 1989. These details should still be checked against the original unit before ordering.

What voltage and output does it have?

It is a 12V alternator rated at 70A. For this listing, part number BXH1204N is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include NISSAN PATROL, NISSAN PATROL 1988, NISSAN PATROL 1989. These details should still be checked against the original unit before ordering.

What regulator type does it use?

It uses an internal regulator. For this listing, part number BXH1204N is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include NISSAN PATROL, NISSAN PATROL 1988, NISSAN PATROL 1989. These details should still be checked against the original unit before ordering.

What mounting style and pulley details are listed?

It has a twin leg alternator mount, 80mm inside mounting legs, an 84mm pulley outside diameter, and an AA pulley section. For this listing, part number BXH1204N is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include NISSAN PATROL, NISSAN PATROL 1988, NISSAN PATROL 1989. These details should still be checked against the original unit before ordering.

Which vehicle applications are provided?

The provided fitment references Nissan Patrol applications, including 1988 through 1998, but compatibility should still be confirmed against the part number and the existing alternator details. For this listing, part number BXH1204N is the main reference point. Listed voltage is 12. Listed output rating is 70. Published fitment references include NISSAN PATROL, NISSAN PATROL 1988, NISSAN PATROL 1989. These details should still be checked against the original unit before ordering.