Ignition Coil and Spark Plug Kit for GMC Envoy 2002-2005, Pre-Gapped Iridium, 4.2L

Ignition kit with 40,000V high-output coils wound from precision copper, paired with factory pre-gapped fine-wire iridium spark plugs, so the plugs are ready to install without gap adjustment. Designed to match original equipment specifications for steady spark delivery under high heat and heavy engine loads.

Fitment covers the models, years and 4.2L engine listed in the specifications. Compare them with your vehicle before ordering.

Specifications

• Fits: Buick Rainier (2004–2005, 4.2L); Isuzu Ascender (2003–2005 & 2008, 4.2L); Oldsmobile Bravada (2002–2004, 4.2L); Saab 9-7x (2005, 4.2L); GMC Envoy (2002–2005, 4.2L); GMC Envoy XL (2002–2005, 4.2L); GMC Envoy XUV (2004–2005, 4.2L); Chevrolet Trailblazer (2002–2005, 4.2L); Chevrolet Trailblazer EXT (2002–2005, 4.2L)
• Replaces part numbers: 28310, 28315, 12568062, 19300921, 19418994, 8125680620, 8193009210, UF303
• Spark plugs: pre-gapped fine-wire iridium
• Coils: 40,000V high-output with copper windings
• Engine size: 4.2L

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