HomeIgnition > Distributor and MagnetoDelphi DC20025 Distributor Rotor
Part #: DC20025

Delphi DC20025 Distributor Rotor

⚙️ 455 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet, GMC, Buick, Cadillac, Oldsmobile, and Pontiac, P30, P3500, G30, G3500, C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, G10, G20, K1500, K1500 Suburban, K2500, K2500 Suburban, K3500, Tahoe, G1500, G2500, Yukon, Blazer, Commercial Chassis, Roadmaster, Fleetwood, Caprice, Brougham, Camaro, Custom Cruiser, Firebird, R1500 Suburban, R2500 Suburban, R3500, V1500 Suburban, V2500 Suburban, V3500, Jimmy, P20, R2500, P2500, Monte Carlo, R10 Suburban, R20, R20 Suburban, R30, V10 Suburban, V20 Suburban, V30, El Camino, R10, V10, V20, Caballero, R1500, V1500, V2500, and Grand Prix
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Delphi Distributor Rotor DC20025 Overview

The Delphi DC20025 distributor rotor is designed for reliable ignition performance in a range of GM vehicles. Featuring a white finish and copper contact terminal, this standard ignition rotor ensures consistent electrical conductivity and durability for your ignition system.

  • Color: White for easy identification
  • Ignition Type: Standard
  • Contact Terminal Material: Copper for optimal conductivity
  • Mount Type: Push on for straightforward installation
  • Includes distributor rotor and instruction sheet
  • Type/Series: Hei distributor rotor compatible with GM HEI ignition systems

Technical Details and Compatibility

The DC20025 distributor rotor is engineered to meet the specifications of Hei distributor systems commonly found in various Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac models. Its copper contact terminal enhances electrical flow, reducing resistance and improving ignition timing accuracy. The push-on mount type simplifies replacement without the need for additional tools or adapters. This rotor is compatible with popular GM vehicles such as the Chevrolet Blazer, Camaro, C1500 and Suburban series, GMC Sierra models, Pontiac Firebird, and Cadillac Fleetwood, among others.

Applications and Problem Resolution

This distributor rotor is used to transfer high voltage from the ignition coil to the distributor cap, enabling spark plug firing. It addresses common ignition issues such as:

  • Intermittent or weak spark delivery
  • Engine misfires or rough idling
  • Difficulty starting the engine
  • Excessive wear or corrosion on the rotor contact
  • Ignition timing inconsistencies

Installation Notes and Tips

Installation of the Delphi DC20025 distributor rotor is straightforward due to its push-on mount design. Before installation, ensure the ignition is off and the battery is disconnected. Remove the distributor cap carefully and note the rotor’s orientation. Align the new rotor with the distributor shaft and press firmly until it seats securely. Refer to the included instruction sheet for vehicle-specific guidance. After installation, verify proper ignition timing and engine operation.

Quality Assurance and Warranty

Delphi manufactures the DC20025 distributor rotor to meet OEM standards for fit, form, and function. The use of copper contact terminals ensures durability and consistent performance under normal operating conditions. This part is backed by Delphi’s quality control processes, providing confidence in its reliability. Warranty coverage details should be confirmed with the point of purchase or Delphi directly.

BrandDelphi
Part NumberDC20025
ColorWhite
Contact Terminal MaterialCopper
Ignition TypeStandard
Mount TypePush On
Package ContentsDistributor Rotor, Instruction Sheet
Type/SeriesHEI Distributor Rotor

This part fits 455 vehicles. Search below:

YearMakeModelSubmodelFuel TypePositionNotes
1997ChevroletP30GASN/A
1997GMCP3500GASN/A
1996ChevroletG30SportvanGASN/A
1996ChevroletG30Hi-CubeGASN/A
1996ChevroletG30SportvanCNGN/A
1996ChevroletG30Hi-CubeCNGN/A
1996ChevroletP30GASN/A
1996GMCG3500VanduraGASN/A
1996GMCG3500Rally STXGASN/A
1996GMCG3500MagnavanGASN/A
1996GMCG3500VanduraCNGN/A
1996GMCG3500Rally STXCNGN/A
1996GMCG3500MagnavanCNGN/A
1996GMCP3500GASN/A
1995ChevroletC1500GASN/A
1995ChevroletC1500 SuburbanGASN/A
1995ChevroletC2500GASN/A
1995ChevroletC2500 SuburbanGASN/A
1995ChevroletC3500GASN/A
1995ChevroletG10N/A
1995ChevroletG20SportvanGASN/A
1995ChevroletG20Chevy VanGASN/A
1995ChevroletG30SportvanGASN/A
1995ChevroletG30Hi-CubeGASN/A
1995ChevroletK1500GASN/A
1995ChevroletK1500 SuburbanGASN/A
1995ChevroletK2500GASN/A
1995ChevroletK2500 SuburbanGASN/A
1995ChevroletK3500GASN/A
1995ChevroletP30GASN/A
1995ChevroletTahoeGASN/A
1995GMCC1500GASN/A
1995GMCC1500 SuburbanGASN/A
1995GMCC2500Sierra SLTGASN/A
1995GMCC2500Sierra SLEGASN/A
1995GMCC2500 SuburbanGASN/A
1995GMCC3500GASN/A
1995GMCG1500VanduraN/A
1995GMCG1500Rally STXN/A
1995GMCG2500VanduraGASN/A
1995GMCG2500Rally STXGASN/A
1995GMCG3500VanduraGASN/A
1995GMCG3500Rally STXGASN/A
1995GMCG3500MagnavanGASN/A
1995GMCK1500Sierra SpecialGASN/A
1995GMCK1500Sierra SLTGASN/A
1995GMCK1500 SuburbanGASN/A
1995GMCK2500GASN/A
1995GMCK2500 SuburbanGASN/A
1995GMCK3500Sierra SLTGASN/A
1995GMCK3500Sierra SLEGASN/A
1995GMCP3500GASN/A
1995GMCYukonGASN/A
1994ChevroletBlazerGASN/A
1994ChevroletC1500GASN/A
1994ChevroletC1500 SuburbanN/A
1994ChevroletC2500GASN/A
1994ChevroletC2500 SuburbanGASN/A
1994ChevroletC3500GASN/A
1994ChevroletG10N/A
1994ChevroletG20SportvanGASN/A
1994ChevroletG20Chevy VanGASN/A
1994ChevroletG30SportvanGASN/A
1994ChevroletG30Hi-CubeGASN/A
1994ChevroletK1500GASN/A
1994ChevroletK1500 SuburbanN/A
1994ChevroletK2500GASN/A
1994ChevroletK2500 SuburbanGASN/A
1994ChevroletK3500GASN/A
1994ChevroletP30GASN/A
1994GMCC1500Sierra SpecialGASN/A
1994GMCC1500Sierra SLTGASN/A
1994GMCC1500 SuburbanN/A
1994GMCC2500GASN/A
1994GMCC2500 SuburbanGASN/A
1994GMCC3500GASN/A
1994GMCG1500VanduraN/A
1994GMCG1500Rally STXN/A
1994GMCG2500VanduraGASN/A
1994GMCG2500Rally STXGASN/A
1994GMCG3500VanduraGASN/A
1994GMCG3500Rally STXGASN/A
1994GMCG3500MagnavanGASN/A
1994GMCK1500Sierra SpecialGASN/A
1994GMCK1500Sierra SLTGASN/A
1994GMCK1500 SuburbanN/A
1994GMCK2500Sierra SLTGASN/A
1994GMCK2500Sierra SLEGASN/A
1994GMCK2500 SuburbanGASN/A
1994GMCK3500GASN/A
1994GMCP3500GASN/A
1994GMCYukonGASN/A
1993BuickRoadmasterLimitedN/A
1993BuickRoadmasterEstate WagonN/A
1993CadillacCommercial ChassisN/A
1993CadillacFleetwoodBroughamN/A
1993ChevroletBlazerN/A
1993ChevroletC1500WTGASN/A
1993ChevroletC1500 SuburbanN/A
1993ChevroletC2500GASN/A
1993ChevroletC2500CNGN/A
1993ChevroletC2500 SuburbanN/A
1993ChevroletC3500GASN/A
1993ChevroletCapriceClassic LTZN/A
1993ChevroletCapriceClassicN/A
1993ChevroletCapriceClassic LSN/A
1993ChevroletG10SportvanN/A
1993ChevroletG10Chevy VanN/A
1993ChevroletG20SportvanGASN/A
1993ChevroletG20Chevy VanGASN/A
1993ChevroletG30SportvanGASN/A
1993ChevroletG30Hi-CubeGASN/A
1993ChevroletK1500GASN/A
1993ChevroletK1500 SuburbanN/A
1993ChevroletK2500GASN/A
1993ChevroletK2500CNGN/A
1993ChevroletK2500 SuburbanN/A
1993ChevroletK3500GASN/A
1993ChevroletP30GASN/A
1993GMCC1500GASN/A
1993GMCC1500 SuburbanN/A
1993GMCC2500GASN/A
1993GMCC2500CNGN/A
1993GMCC2500 SuburbanN/A
1993GMCC3500GASN/A
1993GMCG1500Rally STXN/A
1993GMCG1500VanduraN/A
1993GMCG2500VanduraGASN/A
1993GMCG2500Rally STXGASN/A
1993GMCG3500VanduraGASN/A
1993GMCG3500Rally STXGASN/A
1993GMCG3500MagnavanGASN/A
1993GMCK1500GASN/A
1993GMCK1500 SuburbanN/A
1993GMCK2500GASN/A
1993GMCK2500CNGN/A
1993GMCK2500 SuburbanN/A
1993GMCK3500GASN/A
1993GMCP3500GASN/A
1993GMCYukonN/A
1992BuickRoadmasterLimitedN/A
1992BuickRoadmasterEstate WagonN/A
1992CadillacBroughamN/A
1992CadillacCommercial ChassisN/A
1992ChevroletBlazerN/A
1992ChevroletC1500WTGASN/A
1992ChevroletC1500 SuburbanN/A
1992ChevroletC2500GASN/A
1992ChevroletC2500CNGN/A
1992ChevroletC2500 SuburbanN/A
1992ChevroletC3500GASN/A
1992ChevroletCamaroZ28 Heritage EditionN/A
1992ChevroletCamaroRS Heritage EditionN/A
1992ChevroletCapriceClassicN/A
1992ChevroletCapriceClassic LTZN/A
1992ChevroletG10SportvanN/A
1992ChevroletG10Chevy VanN/A
1992ChevroletG20SportvanGASN/A
1992ChevroletG20Chevy VanGASN/A
1992ChevroletG30SportvanGASN/A
1992ChevroletG30Hi-CubeGASN/A
1992ChevroletK1500GASN/A
1992ChevroletK1500 SuburbanN/A
1992ChevroletK2500GASN/A
1992ChevroletK2500CNGN/A
1992ChevroletK2500 SuburbanN/A
1992ChevroletK3500GASN/A
1992ChevroletP30GASN/A
1992GMCC1500GASN/A
1992GMCC1500 SuburbanN/A
1992GMCC2500GASN/A
1992GMCC2500CNGN/A
1992GMCC2500 SuburbanN/A
1992GMCC3500GASN/A
1992GMCG1500Rally STXN/A
1992GMCG1500VanduraN/A
1992GMCG2500VanduraGASN/A
1992GMCG2500Rally STXGASN/A
1992GMCG3500VanduraGASN/A
1992GMCG3500Rally STXGASN/A
1992GMCG3500MagnavanGASN/A
1992GMCK1500GASN/A
1992GMCK1500 SuburbanN/A
1992GMCK2500GASN/A
1992GMCK2500CNGN/A
1992GMCK2500 SuburbanN/A
1992GMCK3500GASN/A
1992GMCP3500GASN/A
1992GMCYukonN/A
1992OldsmobileCustom CruiserN/A
1992PontiacFirebirdTrans AmN/A
1992PontiacFirebirdTrans Am GTAN/A
1992PontiacFirebirdFormulaN/A
1992PontiacFirebirdBaseN/A
1991BuickRoadmasterN/A
1991CadillacBroughamN/A
1991ChevroletBlazerGASN/A
1991ChevroletC1500WTGASN/A
1991ChevroletC2500GASN/A
1991ChevroletC3500GASN/A
1991ChevroletCamaroZ28N/A
1991ChevroletCamaroRSN/A
1991ChevroletCapriceClassicN/A
1991ChevroletCapriceClassic LTZN/A
1991ChevroletG10SportvanN/A
1991ChevroletG10Chevy VanN/A
1991ChevroletG20SportvanGASN/A
1991ChevroletG20Chevy VanGASN/A
1991ChevroletG30SportvanGASN/A
1991ChevroletG30Hi-CubeGASN/A
1991ChevroletK1500GASN/A
1991ChevroletK2500GASN/A
1991ChevroletK3500GASN/A
1991ChevroletP30GASN/A
1991ChevroletR1500 SuburbanGASN/A
1991ChevroletR2500 SuburbanGASN/A
1991ChevroletR3500GASN/A
1991ChevroletV1500 SuburbanGASN/A
1991ChevroletV2500 SuburbanGASN/A
1991ChevroletV3500GASN/A
1991GMCC1500GASN/A
1991GMCC2500GASN/A
1991GMCC3500GASN/A
1991GMCG1500Rally STXN/A
1991GMCG1500VanduraN/A
1991GMCG2500VanduraGASN/A
1991GMCG2500Rally STXGASN/A
1991GMCG3500Vandura SpecialGASN/A
1991GMCG3500Rally STXGASN/A
1991GMCG3500MagnavanGASN/A
1991GMCJimmyGASN/A
1991GMCK1500GASN/A
1991GMCK2500GASN/A
1991GMCK3500GASN/A
1991GMCP3500GASN/A
1991GMCR1500 SuburbanGASN/A
1991GMCR2500 SuburbanGASN/A
1991GMCR3500GASN/A
1991GMCV1500 SuburbanGASN/A
1991GMCV2500 SuburbanGASN/A
1991GMCV3500GASN/A
1991OldsmobileCustom CruiserN/A
1991PontiacFirebirdTrans AmN/A
1991PontiacFirebirdTrans Am GTAN/A
1991PontiacFirebirdFormulaN/A
1991PontiacFirebirdBaseN/A
1990CadillacBroughamN/A
1990ChevroletBlazerGASN/A
1990ChevroletC1500WTGASN/A
1990ChevroletC2500GASN/A
1990ChevroletC3500GASN/A
1990ChevroletCamaroIroc-ZN/A
1990ChevroletCamaroRSN/A
1990ChevroletCapriceBaseN/A
1990ChevroletCapriceClassicN/A
1990ChevroletCapriceClassic LS BroughamN/A
1990ChevroletG10SportvanN/A
1990ChevroletG10Chevy VanN/A
1990ChevroletG20SportvanGASN/A
1990ChevroletG20Chevy VanGASN/A
1990ChevroletG30SportvanGASN/A
1990ChevroletG30Hi-CubeGASN/A
1990ChevroletK1500GASN/A
1990ChevroletK2500GASN/A
1990ChevroletK3500GASN/A
1990ChevroletP30GASN/A
1990ChevroletR1500 SuburbanGASN/A
1990ChevroletR2500 SuburbanGASN/A
1990ChevroletR3500GASN/A
1990ChevroletV1500 SuburbanGASN/A
1990ChevroletV2500 SuburbanGASN/A
1990ChevroletV3500GASN/A
1990GMCC1500GASN/A
1990GMCC2500GASN/A
1990GMCC3500GASN/A
1990GMCG1500Rally STXN/A
1990GMCG1500VanduraN/A
1990GMCG2500VanduraGASN/A
1990GMCG2500Rally STXGASN/A
1990GMCG3500Vandura SpecialGASN/A
1990GMCG3500Rally STXGASN/A
1990GMCG3500MagnavanGASN/A
1990GMCJimmyGASN/A
1990GMCK1500GASN/A
1990GMCK2500GASN/A
1990GMCK3500GASN/A
1990GMCP3500GASN/A
1990GMCR1500 SuburbanGASN/A
1990GMCR2500 SuburbanGASN/A
1990GMCR3500GASN/A
1990GMCV1500 SuburbanGASN/A
1990GMCV2500 SuburbanGASN/A
1990GMCV3500GASN/A
1990PontiacFirebirdTrans AmN/A
1990PontiacFirebirdTrans Am GTAN/A
1990PontiacFirebirdFormulaN/A
1990PontiacFirebirdBaseN/A
1989ChevroletBlazerGASN/A
1989ChevroletC1500GASN/A
1989ChevroletC2500GASN/A
1989ChevroletC3500GASN/A
1989ChevroletCamaroIroc-ZN/A
1989ChevroletCamaroRSN/A
1989ChevroletCapriceBaseN/A
1989ChevroletCapriceClassicN/A
1989ChevroletCapriceClassic LS BroughamN/A
1989ChevroletG10SportvanN/A
1989ChevroletG10Chevy VanN/A
1989ChevroletG20SportvanGASN/A
1989ChevroletG20Chevy VanGASN/A
1989ChevroletG30SportvanGASN/A
1989ChevroletG30Hi-CubeGASN/A
1989ChevroletK1500GASN/A
1989ChevroletK2500GASN/A
1989ChevroletK3500GASN/A
1989ChevroletP20GASN/A
1989ChevroletP30GASN/A
1989ChevroletR1500 SuburbanGASN/A
1989ChevroletR2500GASN/A
1989ChevroletR2500 SuburbanGASN/A
1989ChevroletR3500GASN/A
1989ChevroletV1500 SuburbanGASN/A
1989ChevroletV2500 SuburbanGASN/A
1989ChevroletV3500GASN/A
1989GMCC1500GASN/A
1989GMCC2500GASN/A
1989GMCC3500GASN/A
1989GMCG1500Rally STXN/A
1989GMCG1500VanduraN/A
1989GMCG2500VanduraGASN/A
1989GMCG2500Rally STXGASN/A
1989GMCG3500Vandura SpecialGASN/A
1989GMCG3500Rally STXGASN/A
1989GMCG3500MagnavanGASN/A
1989GMCJimmyGASN/A
1989GMCK1500GASN/A
1989GMCK2500GASN/A
1989GMCK3500GASN/A
1989GMCP2500GASN/A
1989GMCP3500GASN/A
1989GMCR1500 SuburbanGASN/A
1989GMCR2500GASN/A
1989GMCR2500 SuburbanGASN/A
1989GMCR3500GASN/A
1989GMCV1500 SuburbanGASN/A
1989GMCV2500 SuburbanGASN/A
1989GMCV3500GASN/A
1989PontiacFirebirdTrans AmN/A
1989PontiacFirebirdTrans Am GTAN/A
1989PontiacFirebirdFormulaN/A
1989PontiacFirebirdBaseN/A
1988ChevroletBlazerGASN/A
1988ChevroletC1500GASN/A
1988ChevroletC2500GASN/A
1988ChevroletC3500GASN/A
1988ChevroletCamaroN/A
1988ChevroletCapriceBaseN/A
1988ChevroletCapriceClassicN/A
1988ChevroletCapriceClassic LS BroughamN/A
1988ChevroletG10SportvanN/A
1988ChevroletG10Chevy VanN/A
1988ChevroletG20SportvanGASN/A
1988ChevroletG20Chevy VanGASN/A
1988ChevroletG30SportvanGASN/A
1988ChevroletG30Hi-CubeGASN/A
1988ChevroletK1500GASN/A
1988ChevroletK2500GASN/A
1988ChevroletK3500GASN/A
1988ChevroletMonte CarloSSN/A
1988ChevroletMonte CarloLSN/A
1988ChevroletP20GASN/A
1988ChevroletP30GASN/A
1988ChevroletR10 SuburbanGASN/A
1988ChevroletR20GASN/A
1988ChevroletR20 SuburbanGASN/A
1988ChevroletR30GASN/A
1988ChevroletV10 SuburbanGASN/A
1988ChevroletV20 SuburbanGASN/A
1988ChevroletV30GASN/A
1988GMCC1500GASN/A
1988GMCC2500GASN/A
1988GMCC3500GASN/A
1988GMCG1500Rally STXN/A
1988GMCG1500VanduraN/A
1988GMCG2500VanduraGASN/A
1988GMCG2500Rally STXGASN/A
1988GMCG3500MagnavanGASN/A
1988GMCG3500Vandura SpecialGASN/A
1988GMCG3500Rally STXGASN/A
1988GMCJimmyGASN/A
1988GMCK1500GASN/A
1988GMCK2500GASN/A
1988GMCK3500GASN/A
1988GMCP2500GASN/A
1988GMCP3500GASN/A
1988GMCR1500 SuburbanGASN/A
1988GMCR2500GASN/A
1988GMCR2500 SuburbanGASN/A
1988GMCR3500GASN/A
1988GMCV1500 SuburbanGASN/A
1988GMCV2500 SuburbanGASN/A
1988GMCV3500GASN/A
1988PontiacFirebirdTrans AmN/A
1988PontiacFirebirdBaseN/A
1987ChevroletBlazerGASN/A
1987ChevroletCamaroIroc-ZN/A
1987ChevroletCamaroZ28N/A
1987ChevroletCapriceBaseN/A
1987ChevroletCapriceClassicN/A
1987ChevroletCapriceClassic LS BroughamN/A
1987ChevroletEl CaminoN/A
1987ChevroletG10SportvanN/A
1987ChevroletG10Chevy VanN/A
1987ChevroletG20SportvanGASN/A
1987ChevroletG20Chevy VanGASN/A
1987ChevroletG30SportvanGASN/A
1987ChevroletG30Hi-CubeGASN/A
1987ChevroletMonte CarloSSN/A
1987ChevroletMonte CarloLSN/A
1987ChevroletP20GASN/A
1987ChevroletP30GASN/A
1987ChevroletR10GASN/A
1987ChevroletR10 SuburbanGASN/A
1987ChevroletR20GASN/A
1987ChevroletR20 SuburbanGASN/A
1987ChevroletR30GASN/A
1987ChevroletV10GASN/A
1987ChevroletV10 SuburbanGASN/A
1987ChevroletV20GASN/A
1987ChevroletV20 SuburbanGASN/A
1987ChevroletV30GASN/A
1987GMCG1500Rally STXN/A
1987GMCG1500VanduraN/A
1987GMCG2500VanduraGASN/A
1987GMCG2500Rally STXGASN/A
1987GMCG3500Vandura SpecialGASN/A
1987GMCG3500Rally STXGASN/A
1987GMCG3500MagnavanGASN/A
1987GMCJimmyGASN/A
1987GMCP3500GASN/A
1987GMCR1500GASN/A
1987GMCR1500 SuburbanGASN/A
1987GMCR2500GASN/A
1987GMCR2500 SuburbanGASN/A
1987GMCR3500GASN/A
1987GMCV1500GASN/A
1987GMCV1500 SuburbanGASN/A
1987GMCV2500GASN/A
1987GMCV2500 SuburbanGASN/A
1987GMCV3500GASN/A
1987PontiacFirebirdTrans AmN/A
1987PontiacFirebirdBaseN/A
1987PontiacGrand PrixLEN/A
1987PontiacGrand PrixBroughamN/A
1987PontiacGrand PrixBaseN/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:

104582491049679812873-4494R1041D220D447DR-326DR59CDR59CCSDR901RR250RR250SB

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