MPA Electrical
Remanufactured

MPA Electrical 13056 Alternator

Brand MPA Electrical 13056
Amps 55 Amps
Clock 8:00
Fan External
Manufacturer Bosch
Pulley Without Pulley
Regulator Internal
Rotation Clockwise
Volts 12 Volts
Product line Remanufactured
Fits Mercedes-Benz · 26 vehicles

Remanufactured unit. Restored for dependable charging performance.

Internal regulator. Simplifies installation with fewer external components.

Bosch-built design. Engineered to match proven charging-system standards.

Cross-references Bosch 13056, Bosch 13077 and Bosch 13142 for the same application. See all 66.

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Remanufactured Bosch-Style Alternator for Mercedes-Benz

MPA Electrical Part Number 13056 is a remanufactured 12-volt alternator built for Mercedes-Benz diesel applications that use a Bosch-style charging unit. It delivers 55 amps, uses an internal regulator, and is configured with clockwise rotation, external fan cooling, and no pulley.

This alternator is a direct-fit charging component for select Mercedes-Benz 300D, 300SD, and 300TD models. If you are replacing a worn charging unit on a 1975-1985 Mercedes-Benz 300D or related diesel model, Part Number 13056 provides the core electrical specifications needed for proper system operation.

Key Features

  • 55 amp output for standard charging-system replacement
  • 12-volt alternator configuration
  • Internal voltage regulator
  • External fan design
  • Clockwise rotation
  • Supplied without pulley
  • Remanufactured Bosch application
  • Part Number 13056

Fitment Details

  • Fits 1981-1985 Mercedes-Benz 300D, N/A, standard with 55 amp alternator; remanufactured.
  • Fits 1981-1985 Mercedes-Benz 300SD, N/A, standard with 55 amp alternator; remanufactured.
  • Fits 1981-1985 Mercedes-Benz 300TD, N/A, standard with 55 amp alternator; remanufactured.
  • Fits 1975-1980 Mercedes-Benz 300D, N/A, remanufactured.
  • Fits 1978-1980 Mercedes-Benz 300SD, N/A, remanufactured.
  • Fits 1979-1980 Mercedes-Benz 300TD, N/A, remanufactured.

What This Alternator Helps Address

  • Low battery charging caused by a failing alternator
  • Dim lights or electrical instability at idle
  • Charging-system warning symptoms from worn internal components
  • Noise or performance issues from an aging generator assembly
  • Replacement needs for Bosch-based Mercedes-Benz diesel charging systems

Installation Notes and Tips

Verify the existing unit matches the 55 amp, 12-volt, internal-regulator, clockwise-rotation configuration before installation. Because this alternator is supplied without a pulley, confirm pulley transfer or replacement requirements against the vehicle’s original setup. Cross-reference part numbers include Bosch 13056 and Bosch 13077 for the same application.

Quality Assurance

MPA Electrical remanufactured parts are rebuilt for charging-system replacement use and matched to the listed Bosch-style application details. This part number is 13056.

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1985Mercedes-Benz300D3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1985Mercedes-Benz300SD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1985Mercedes-Benz300TD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1984Mercedes-Benz300D3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1984Mercedes-Benz300SD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1984Mercedes-Benz300TD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1983Mercedes-Benz300D3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1983Mercedes-Benz300SD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1983Mercedes-Benz300TD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1982Mercedes-Benz300D3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1982Mercedes-Benz300SD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1982Mercedes-Benz300TD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1981Mercedes-Benz300D3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1981Mercedes-Benz300SD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1981Mercedes-Benz300TD3.0LL5N/AStandard, w/ 55 Amp Alt.; Remanufactured
1980Mercedes-Benz300D3.0LL5N/ARemanufactured
1980Mercedes-Benz300SD3.0LL5N/ARemanufactured
1980Mercedes-Benz300TD3.0LL5N/ARemanufactured
1979Mercedes-Benz300D3.0LL5N/ARemanufactured
1979Mercedes-Benz300SD3.0LL5N/ARemanufactured
1979Mercedes-Benz300TD3.0LL5N/ARemanufactured
1978Mercedes-Benz300D3.0LL5N/ARemanufactured
1978Mercedes-Benz300SD3.0LL5N/ARemanufactured
1977Mercedes-Benz300D3.0LL5N/ARemanufactured
1976Mercedes-Benz300D3.0LL5N/ARemanufactured
1975Mercedes-Benz300D3.0LL5N/ARemanufactured
Directly replaces or cross-references 66 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 13056Bosch — 13077Bosch — 131420-120-400-5230-120-400-8560-120-400-8570-120-400-8580-120-400-8590-120-489-0610-120-489-2320-120-489-2330-120-489-2340-120-489-3000-120-489-3010-120-489-3020-120-489-5260-120-489-5270-120-489-5470-120-489-5480-120-489-5560-120-489-6230-120-489-6830-120-489-7860-120-489-8220-120-489-8280-120-489-8780-120-489-9010-120-489-9170-120-489-9180-120-489-9230-120-489-9320-120-489-933004-154-18-02004-154-20-02004-154-44-02004-154-46-02004-154-59-02004-154-69-02004-154-70-02005-154-39-02005-154-58-02005-154-67-02005-154-74-02005-154-76-02005-154-77-02005-154-78-02005-154-79-02006-154-30-02006-154-87-02006-154-88-02006-154-89-02007-154-33-02007-154-34-029AR2785P11.201.14711.201.15511.201.30711.201.5271046369519134036AAK1152AAK1157AAK3586AAK4141IA0713IA0731