Bosch Alternator 12V 100A BXD1219N

The Bosch BXD1219N is a new 12V alternator rated at 100 amps, supplied as an each unit for rotating electrical applications. It uses a 6 groove pulley, clockwise rotation, an internal regulator, and a single leg alternator mount, so the physical setup matters just as much as the electrical rating when comparing replacements.

This unit is identified with part number BXD1219N and pin code IR11. The pulley outside diameter is 61mm, and the alternator weighs 5.76kg. Those details are useful when checking interchange, because alternators that look similar can differ in mounting style, pulley layout, or regulator type.

Bosch lists this alternator as a new unit with a one year warranty. It is described as corrosion resistant and made from high quality raw materials, with a reduction drive designed to maintain continual speeds for easier starting. For buyers replacing an existing Bosch unit, the listed suit detail is Bosch make, so matching the part number and application is still the safest approach.

Key Features

• New Bosch alternator
• 12V, 100A output
• 6 groove pulley
• Clockwise rotation
• Internal regulator
• Single leg mount

Specifications

• Brand: Bosch
• Part No.: BXD1219N
• Voltage: 12V
• Power rating: 100 amp
• Pulley section: 6 groove
• Pulley outside diameter: 61mm
• Rotation: clockwise (CW)
• Regulator type: internal

Fitment and application guidance

• Verified fitment references include Lexus LS applications across 1989 to 1999.
• Verified fitment references also include Toyota Land Cruiser applications from 1998 to 2007.
• Fitment is not limited here to a full vehicle list, so confirm your existing alternator details before ordering.
• Check the part number BXD1219N, pin code IR11, 6 groove pulley, clockwise rotation, internal regulator, and single leg mount against the unit being replaced.

Application and Buying Notes

Alternators are best matched by a combination of part number, electrical output, pulley configuration, and mounting style. For this Bosch unit, the key identifiers are BXD1219N, 12V, 100A, 6 groove pulley, 61mm pulley outside diameter, CW rotation, internal regulator, and single leg mount. If any one of those details differs from your current unit, the alternator may not be a direct exchange.

The fitment references supplied for this part include Lexus LS models from 1989 through 1999 and Toyota Land Cruiser models from 1998 through 2007. That is useful guidance, but it should not replace a direct check on the vehicle and the existing alternator. The alternator can vary by engine, charging setup, mounting arrangement, and connector style even within the same model family.

If you are replacing a Bosch alternator, the listed suit detail is Bosch make, which can help narrow comparison. The pin code IR11 is also an important checkpoint where applicable. For a proper match, compare the old unit’s pulley section, mounting ear layout, rotation direction, and regulator type before fitting the new alternator.

The 100 amp rating is the electrical output figure listed for this unit, so it should be checked against the charging requirements of the application you are working on. A higher or lower output than the original specification can affect compatibility, even when the alternator physically bolts up. When in doubt, confirm against the removed part number and vehicle application 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 BXD1219N 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, Power Rating (Amp) 100, Pulley Section 6 Groove, Rotation CW, Voltage 12, New / Reman. New, Product Group 2 ALTERNATORS.

Additional published details for cross-checking include Part No. BXD1219N, Brand BOSCH, Description Bosch Alternator 12V 100A, Pin Code IR11, Pulley Outside Diameter 61mm, Regulator Type Internal, Suits Unit Make Bosch, Alternator Mount Single Leg, Weight 5.76kg, Product Group 1 ROTATING ELECTRICAL.

Bosch Alternator 12V 100A. Part number BXD1219N should be checked first. Listed voltage is 12. Listed output rating is 100. 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 6 Groove. Those physical and electrical details should line up with the original unit before the replacement is approved for fitment.

For part number BXD1219N, 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 100 should be checked carefully. Incorrect selection can affect installation time, return freight, and equipment availability.

Available application references include LEXUS LS, LEXUS LS 1989, LEXUS LS 1990, LEXUS LS 1991, TOYOTA LAND CRUISER, TOYOTA LAND CRUISER 1998. 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.

Compatibility note: Please confirm compatibility using the part number BXD1219N, pin code IR11, and the alternator’s 12V 100A specification, plus the 6 groove pulley, CW rotation, internal regulator, and single leg mount before purchasing.

FAQ

What is the part number for this Bosch alternator?

The part number is BXD1219N.

Is this alternator 12V or 24V?

It is a 12V alternator.

What is the current output rating?

The listed power rating is 100 amp.

What pulley setup does it use?

It uses a 6 groove pulley with a 61mm pulley outside diameter.

Does this alternator have an internal regulator?

Yes. The listed regulator type is internal.

Which vehicles are referenced in the fitment data?

The supplied fitment references include Lexus LS applications from 1989 to 1999 and Toyota Land Cruiser applications from 1998 to 2007. Confirm the part number and mounting details before ordering.