HomeStandard Ignition D-50 Alternator Rectifier Set
Part #: D-50

Standard Ignition D-50 Alternator Rectifier Set

7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Audi and Volkswagen, 80, 90, 4000, 4000 Quattro, and Golf
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Reliable Alternator Rectifier Set for Audi and Volkswagen Vehicles

The Standard Ignition D-50 Alternator Rectifier Set is designed to restore proper charging system function in select Audi and Volkswagen models. This 12-volt rectifier set ensures efficient electrical conversion and supports consistent alternator performance.

  • Voltage: 12 volts, compatible with standard automotive electrical systems
  • Compatible with Audi 80, 90, 4000, and 4000 Quattro models
  • Fits Volkswagen Golf models requiring a 12V alternator rectifier
  • Part number D-50 for precise identification and fitment
  • Durable construction to withstand typical engine bay conditions

Product Details and Compatibility

The Standard Ignition D-50 Alternator Rectifier Set is engineered to meet the electrical demands of 12-volt alternators found in various Audi and Volkswagen vehicles. This component converts the alternator’s AC output into DC current, which is essential for charging the battery and powering the vehicle’s electrical systems. Specifically designed for models such as the Audi 80, 90, 4000, 4000 Quattro, and Volkswagen Golf, this rectifier set ensures proper fit and function when replacing worn or faulty alternator components.

Common Applications and Problem Resolution

  • Restores charging system efficiency in Audi 80 and 90 models
  • Resolves battery drain issues in Volkswagen Golf vehicles
  • Eliminates alternator voltage irregularities in Audi 4000 and 4000 Quattro
  • Prevents electrical system failures caused by rectifier malfunction
  • Supports stable voltage output to protect vehicle electronics

Installation Notes and Tips

Installation of the Standard Ignition D-50 Alternator Rectifier Set should be performed by a qualified technician familiar with Audi and Volkswagen electrical systems. Ensure the vehicle’s battery is disconnected before beginning work to avoid electrical hazards. Verify compatibility with the specific model and alternator type prior to installation. Proper torque specifications should be followed when securing the rectifier to prevent damage.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards for fit, form, and function. The D-50 Alternator Rectifier Set undergoes rigorous quality control to ensure reliable performance. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberD-50
Voltage12

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1988Audi802.0LL4N/AOE No. 049 903 023K, L, R; 55 to 65 Amp
1988Audi902.0LL4N/AOE No. 049 903 023K, L, R; 55 to 65 Amp
1987Audi4000N/AOE No. 049 903 023K, L, R; 55 or 65 Amp
1987Audi4000 QuattroN/AOE No. 049 903 023K, L, R; 55 or 65 Amp
1986Audi4000N/AOE No. 049 903 023K, L, R; 55 or 65 Amp
1986Audi4000 QuattroN/AOE No. 049 903 023K, L, R; 55 or 65 Amp
1986VolkswagenGolfN/Aw/o AC; OE No. 04993023R

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

04990335920-55132D300532-011272GB10304AA88921718AC50DO323SC522

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.