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Standard Ignition DG-21 Distributor Drive GearOE Quality 60-Day Returns
Part #: DG-21

Standard Ignition DG-21 Distributor Drive Gear

67 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac, DeVille, Commercial Chassis, Eldorado, Seville, Allante, and Fleetwood
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Distributor Drive Gear for Cadillac Ignition Service

Standard Ignition DG-21 is a distributor drive gear built for ignition service on a wide range of Cadillac applications. It is specified with a .502 inch inner diameter, .750 inch outer diameter, and 15 teeth for proper distributor drive engagement.

Key Features

  • Distributor drive gear for ignition and distributor service
  • .502 inch inner diameter for shaft fitment
  • .750 inch outer diameter
  • 15-tooth gear design
  • Standard Ignition DG-21 part number for catalog matching

Detailed Description

Standard Ignition DG-21 is a distributor drive gear used in ignition systems where correct gear dimensions and tooth count are critical to distributor operation. This part is listed for Cadillac DeVille, Cadillac Commercial Chassis, Cadillac Eldorado, Cadillac Seville, Cadillac Allante, and Cadillac Fleetwood applications across the 1982-1995 model years. If you are searching for a Cadillac DeVille distributor drive gear or a DG-21 replacement for Cadillac ignition repair, this part provides the specified dimensions needed for service work.

Standard Ignition has supplied ignition products to the automotive aftermarket since 1919 and maintains quality control through the manufacturing process from component materials to finished product. This part cross-references 6D1022 and 52-7509 for the same application.

What It Is Used For

  • Replacing a worn or damaged distributor drive gear
  • Restoring proper distributor shaft engagement
  • Addressing ignition timing issues caused by gear wear
  • Repairing noise or irregular operation in the distributor drive train
  • Supporting ignition service on Cadillac V8 applications

Installation Notes and Tips

Verify the inner diameter, outer diameter, and tooth count against the original gear before installation. Inspect the distributor shaft, mating components, and related ignition parts for wear or damage so the replacement gear can seat and operate correctly. Confirm vehicle application by year, make, and model before ordering DG-21.

Quality Assurance

Standard Ignition manufactures original equipment ignition products and controls quality throughout the production process to help ensure consistent fit and function for service replacement use.

BrandStandard Ignition
Part NumberDG-21
ContentsDistributor Gear
Inner Diameter (I.D.) - Inches.502"
Number of Teeth15
Outer Diameter (O.D.) - Inches.750"

This part fits 67 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1995CadillacDeVille4.9LV8N/A
1994CadillacDeVille4.9LV8N/A
1993CadillacCommercial Chassis4.9LV8N/A
1993CadillacDeVille4.9LV8N/A
1993CadillacEldorado4.9LV8N/A
1993CadillacSeville4.9LV8N/A
1992CadillacAllanteN/A
1992CadillacCommercial Chassis4.9LV8N/A
1992CadillacDeVille4.9LV8N/A
1992CadillacEldorado4.9LV8N/A
1992CadillacFleetwood4.9LV8N/A
1992CadillacSeville4.9LV8N/A
1991CadillacAllanteN/A
1991CadillacCommercial Chassis4.9LV8N/A
1991CadillacDeVille4.9LV8N/A
1991CadillacEldorado4.9LV8N/A
1991CadillacFleetwood4.9LV8N/A
1991CadillacSeville4.9LV8N/A
1990CadillacAllanteN/A
1990CadillacCommercial Chassis4.5LV8N/A
1990CadillacDeVille4.5LV8N/A
1990CadillacEldorado4.5LV8N/A
1990CadillacFleetwoodN/A
1990CadillacSeville4.5LV8N/A
1989CadillacAllanteN/A
1989CadillacCommercial Chassis4.5LV8N/A
1989CadillacDeVille4.5LV8N/A
1989CadillacEldorado4.5LV8N/A
1989CadillacFleetwood4.5LV8N/A
1989CadillacSeville4.5LV8N/A
1988CadillacAllanteN/A
1988CadillacCommercial Chassis4.5LV8N/A
1988CadillacDeVille4.5LV8N/A
1988CadillacEldorado4.5LV8N/A
1988CadillacFleetwood4.5LV8N/A
1988CadillacSeville4.5LV8N/A
1987CadillacAllanteN/A
1987CadillacCommercial Chassis4.1LV8N/A
1987CadillacDeVille4.1LV8N/A
1987CadillacEldorado4.1LV8N/A
1987CadillacFleetwoodN/A
1987CadillacSeville4.1LV8N/A
1986CadillacCommercial Chassis4.1LV8N/A
1986CadillacDeVille4.1LV8N/A
1986CadillacEldorado4.1LV8N/A
1986CadillacFleetwood4.1LV8N/A
1986CadillacSeville4.1LV8N/A
1985CadillacCommercial Chassis4.1LV8N/A
1985CadillacDeVille4.1LV8N/A
1985CadillacEldorado4.1LV8N/A
1985CadillacFleetwood4.1LV8N/A
1985CadillacSeville4.1LV8N/A
1984CadillacCommercial Chassis6.0LV8N/A
1984CadillacDeVille4.1LV8N/A
1984CadillacEldorado4.1LV8N/A
1984CadillacFleetwood4.1LV8N/A
1984CadillacSeville4.1LV8N/A
1983CadillacDeVille4.1LV8N/A
1983CadillacEldorado4.1LV8N/A
1983CadillacFleetwood4.1LV8N/A
1983CadillacSeville4.1LV8N/A
1982CadillacCommercial Chassis6.0LV8N/A
1982CadillacDeVille4.1LV8N/A
1982CadillacEldorado4.1LV8N/A
1982CadillacFleetwood6.0LV8N/A
1982CadillacFleetwood4.1LV8N/A
1982CadillacSeville4.1LV8N/A

* 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:

104988131049981352-75096D1022DG115DG21DG500

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

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