Ignition Control Module LX364 D1977A for 1990-2009 Buick Chevrolet

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LX364 / D1977A Ignition Control Module for Buick, Chevrolet, Oldsmobile & Pontiac 3.8L

Replace a faulty ignition control module with this direct-replacement unit for select GM vehicles. Designed for Delco Type II distributorless ignition systems, the module mounts beneath three individual ignition coils and provides the electrical connections needed to control spark operation.

Product type: Ignition control module
Primary references: LX364 and D1977A
Ignition system: Delco Type II three-coil system
Engine applications: Primarily 3.8L V6, naturally aspirated and supercharged
Construction: Molded mounting frame with integrated heat plate
Quantity: 1 ignition control module

Interchange numbers:

Airtex: 6H1045
CarQuest: 551545 and 21216
Delphi: DS1004
Standard Motor Products: LX364
Wells: DR158
WAI: ICM364
Herko Automotive: SLX364
OE references: 12617924, 10475225, 7094, D1977A, 10469470, 10494012, and D1940A

Fitment:

Buick Regal: 1990–2004 3.8L naturally aspirated; 1997–2004 3.8L supercharged
Buick Park Avenue: 1991–2004 3.8L naturally aspirated or supercharged with Delco Type II ignition
Buick Reatta: 1991 3.8L
Buick Riviera: 1991–1997 3.8L naturally aspirated; 1995–1999 3.8L supercharged
Buick LeSabre: 1992–2005 3.8L with Delco Type II ignition
Buick Century and Skylark: 1993 listed V6 applications
Buick LaCrosse: 2005–2009 3.8L
Buick Lucerne: 2006–2008 3.8L
Chevrolet Lumina APV: 1992–1995 3.8L
Chevrolet Camaro: 1995–2002 3.8L
Chevrolet Lumina: 1998–1999 3.8L
Chevrolet Monte Carlo: 1998–2005 3.8L naturally aspirated; 2004–2005 3.8L supercharged
Chevrolet Impala: 2000–2005 3.8L naturally aspirated; 2004–2005 3.8L supercharged
Oldsmobile 88: 1992 3.8L with Delco Type II ignition
Oldsmobile 98: 1992–1996 3.8L naturally aspirated; 1992–1995 supercharged
Oldsmobile Silhouette: 1992–1995 3.8L
Oldsmobile Achieva, Cutlass Ciera, and Cutlass Cruiser: 1993 listed V6 applications
Oldsmobile LSS: 1996–1999 3.8L naturally aspirated or supercharged
Oldsmobile Regency: 1997–1998 3.8L
Oldsmobile Intrigue: 1998–1999 3.8L
Pontiac Bonneville: 1992–2005 3.8L naturally aspirated; 1992–2003 3.8L supercharged, with Delco Type II ignition
Pontiac Trans Sport: 1992–1995 3.8L
Pontiac Firebird: 1995–2002 3.8L
Pontiac Grand Prix: 1997–2008 3.8L naturally aspirated; 1997–2007 3.8L supercharged

Please confirm the OE/interchange number, engine configuration, Delco Type II ignition system, main connector, coil terminals, and mounting pattern before ordering. Naturally aspirated and supercharged applications may use different calibration or related components despite sharing the same basic module design. Professional installation is recommended.

Fitment and compatibility

Application reference: Ignition Control Module LX364 D1977A for 1990-2009 Buick Chevrolet

Fitment can vary by production date, trim, drivetrain, factory options, connector style and installed equipment. Before ordering, compare the original component, mounting points, electrical connections and specifications with the listing photographs and details.

Part number information

Part number / catalog reference: LX364, D1977A

Part numbers may have supersessions or regional variations. Match at least one reference number and the physical configuration to the original part whenever possible.

Package and installation notes

Quantity is one product unless the title, variant selection or photographs clearly state otherwise. Professional installation is recommended for electrical, safety-related and drivetrain components.