Standard Ignition D-37 Alternator Rectifier Set

Brand Standard Ignition D-37
Voltage 12
Fits Mitsubishi, Hyundai, and Dodge · 7 vehicles

Alternator rectifier set. Restores proper charging-system diode function.

12-volt design. Matches standard electrical system requirements.

Cross-references Standard Ignition AC99, Standard Ignition D-37 and Standard Ignition SC238 for the same application. See all 6.

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Alternator Rectifier Set for 12V Charging Systems

Standard Ignition D-37 is a 12-volt alternator rectifier set for select Mitsubishi, Hyundai, and Dodge applications. It is used in charging system repair when the alternator’s rectifier section needs replacement, including service on Mitsubishi Mirage, Hyundai Excel, Mitsubishi Precis, and Dodge Colt models.

Key Features

  • 12V alternator rectifier set for charging system service
  • Standard Ignition D-37 part number for direct identification
  • Fits select 1986-1989 Mitsubishi, Hyundai, and Dodge vehicles
  • Cross-references Standard Ignition AC99 and SC238 for the same application
  • Also cross-references 3736721200, DO351, and MD611254

Detailed Description

Standard Ignition D-37 is an alternator rectifier set used to restore proper AC-to-DC conversion inside the charging system. When the rectifier section fails, the alternator may no longer deliver stable charging output to the battery and electrical system. This part is listed for 1988-1989 Mitsubishi Precis, 1988 Hyundai Excel, 1987 Hyundai Excel from April 1987, 1986 Dodge Colt, and 1986 Mitsubishi Mirage in both 50 amp and 60 amp 12V applications. For buyers searching for a Mitsubishi Mirage alternator rectifier set or a Hyundai Excel charging system repair part, D-37 provides a direct fitment reference.

This part cross-references Standard Ignition AC99 and SC238 for the same application.

What It Is Used For

  • Repairing alternator charging output problems
  • Replacing a failed rectifier in the alternator assembly
  • Addressing battery charging concerns on Mitsubishi Mirage and Precis models
  • Restoring charging performance on Hyundai Excel and Dodge Colt applications
  • Supporting stable electrical system voltage in 12V vehicles

Installation Notes and Tips

Verify alternator case style, amperage rating, and OE reference before installation. Confirm the vehicle application against the listed fitment: Fits 1988-1989 Mitsubishi Precis, N/A; Fits 1988 Hyundai Excel, N/A; Fits 1987 Hyundai Excel, N/A; Fits 1986 Dodge Colt, N/A; Fits 1986 Mitsubishi Mirage, N/A. Use proper electrical testing to confirm the rectifier is the failed component before replacing related charging parts.

Quality Assurance

Standard Ignition is a recognized aftermarket brand for electrical and engine management components. D-37 is identified for 12-volt charging system service and is cataloged with OE and interchange references to support accurate part matching.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1989MitsubishiPrecis——N/AOE No. 37300-21030
1988HyundaiExcel——N/A—
1988MitsubishiPrecis——N/AOE No. 37300-21030
1987HyundaiExcel——N/AFitment: From April 1987
1986DodgeColt1.5LL4N/AOE No. MD091849
1986MitsubishiMirage1.5LL4N/AOE No. MD091850; 50 Amp
1986MitsubishiMirage1.5LL4N/AOE No. MD091849; 60 Amp; 12V
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — AC99Standard Ignition — D-37Standard Ignition — SC2383736721200DO351MD611254