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LX340 Ignition Coil Spark Control Module for Chevy Buick Geo GMC Pontiac

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LX340 Ignition Control Module for Select GM, Asuna, Buick, Cadillac & Chevrolet Vehicles

Replace a faulty ignition module with this new direct-replacement unit. The module functions as an electronic power switch, using the ignition system’s magnetic-pulse or square-wave signal to control ignition-coil operation. Its application-specific design allows installation without modification on compatible vehicles.

  • Brand: Unbranded
  • Product type: Ignition control module
  • Condition: New
  • OE/interchange number: LX340
  • Manufacturer part number: DHMK-C1500-88-95
  • Fitment type: Direct replacement
  • Placement: Front
  • Universal fitment: No
  • Warranty: 1 year
  • Package includes: 1 ignition control module

Compatible applications include:

  • 1992–1993 Asuna Sunfire 1.8L, VIN 8
  • 1991–1993 Buick Roadmaster 5.0L/5.7L
  • 1985–1986 Buick Skyhawk 2.0L
  • 1985 Buick Skylark 2.8L
  • 1990–1992 Cadillac Brougham 5.0L/5.7L
  • 1985–1986 Cadillac Cimarron 2.8L
  • 1993 Cadillac Fleetwood 5.7L
  • 1986–1995 Chevrolet Astro 4.3L
  • 1987–1995 Chevrolet Blazer 5.0L/5.7L and S10 Blazer 4.3L
  • 1988–1995 Chevrolet C1500, C2500, C3500, K1500, K2500, and K3500 trucks with select 4.3L, 5.0L, 5.7L, and 7.4L engines
  • 1985–1992 Chevrolet Camaro with select 2.8L, 3.1L, 5.0L, and 5.7L engines
  • 1985–1993 Chevrolet Caprice with select 4.3L, 5.0L, and 5.7L engines
  • 1985–1986 Chevrolet Cavalier 2.0L/2.8L
  • 1985 Chevrolet Citation II 2.8L
  • 1985–1987 Chevrolet El Camino 4.3L/5.0L
  • 1996 Chevrolet Express 1500, 2500, and 3500 with listed 4.3L/7.4L engines and six-pin connector
  • 1987–1996 Chevrolet G10, G20, and G30 vans with select 4.3L, 5.0L, 5.7L, and 7.4L engines
  • 1985 Chevrolet Impala 4.3L
  • 1985–1988 Chevrolet Monte Carlo 4.3L/5.0L
  • 1989–1997 Chevrolet P20 and P30 with select 4.3L, 5.7L, and 7.4L engines
  • 1987–1991 Chevrolet R1500, R20, R2500, R30, and R3500 trucks with select 4.3L, 5.0L, 5.7L, and 7.4L engines
  • 1988–1995 Chevrolet S10 Pickup 4.3L
  • 1987–1988 Chevrolet Spectrum 1.5L
  • 1992–1995 Chevrolet Suburban C1500 5.7L

Fitment varies by year, engine, eighth VIN digit, emissions equipment, police package, fuel system, and connector type. Some listed 1995–1997 applications specifically require a six-pin connector. Please compare the LX340 number, connector configuration, mounting pattern, and original module before ordering. Professional installation is recommended.

Fitment and compatibility

Application reference: LX340 Ignition Coil Spark Control Module for Chevy Buick Geo GMC Pontiac

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: LX340, DHMK-C1500-88-95

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.

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