Spectra C-838 Ignition Coil

Brand Spectra C-838
Fits Buick, Cadillac, and Pontiac · 17 vehicles

Premium copper construction. Built with premium grade copper for reliable ignition performance.

Engineered to high standards. Developed with rigorous engineering for consistent operation.

Cross-references Delphi GN10455, Eastern Catalytic 50165 and Karlyn 20115 for the same application. See all 16.

$53.14Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.

Spectra C-838 Ignition Coil Overview

The Spectra C-838 ignition coil is built for direct replacement service on select Buick, Cadillac, and Pontiac applications. It uses premium-grade copper and engineering-focused construction to support consistent ignition performance in vehicles such as the 2006 Buick Lucerne, 2006 Cadillac DTS, and 2004-2006 Cadillac SRX.

Key Features

  • Premium-grade copper construction
  • OE-style ignition coil replacement for cylinder-head mounting applications
  • Direct-mount design for listed Buick, Cadillac, and Pontiac models
  • Cross-reference part number: Delphi GN10455
  • Part number: C-838

Detailed Description

Spectra Premium ignition coils are engineered with copper components and built to meet demanding ignition system requirements. The C-838 is a replacement ignition coil for vehicles that mount the coil directly to the cylinder head, including the 2006 Buick Lucerne, 2006 Cadillac DTS, 2004-2006 Cadillac SRX, 2005-2006 Cadillac STS, 2004-2006 Cadillac XLR, 2004-2005 Cadillac DeVille, 2004-2005 Pontiac Bonneville, and 2004 Cadillac Seville. This part number, C-838, is also cross-referenced to Delphi GN10455 for the same application.

What It Helps Address

  • Engine misfire conditions
  • Hard starting caused by weak ignition output
  • Rough idle from inconsistent spark delivery
  • Loss of power under load
  • Check engine light concerns related to ignition coil failure

Installation Notes and Tips

Verify the vehicle’s year, make, and model before ordering. This ignition coil mounts directly to the cylinder head on the listed applications, so confirm the original coil style and connector match before installation. Use clean electrical connections and inspect related ignition components during service.

Quality Assurance

Spectra Premium builds this ignition coil with premium-grade copper and engineering-driven manufacturing standards for dependable replacement use.

  • Fits 2006 Buick Lucerne, N/A
  • Fits 2006 Cadillac DTS, N/A
  • Fits 2004-2006 Cadillac SRX, N/A
  • Fits 2005-2006 Cadillac STS, N/A
  • Fits 2004-2006 Cadillac XLR, N/A
  • Fits 2004-2005 Cadillac DeVille, N/A
  • Fits 2004-2005 Pontiac Bonneville, N/A
  • Fits 2004 Cadillac Seville, N/A
This part fits 17 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006BuickLucerne4.6LV8N/ADirectly mounts onto cylinder head.
2006CadillacDTS4.6LV8N/ADirectly mounts onto cylinder head.
2006CadillacSRX4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2006CadillacSTS4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2006CadillacSTS4.4LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2006CadillacXLR4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2006CadillacXLR4.4LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2005CadillacDeVille4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2005CadillacSRX4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2005CadillacSTS4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2005CadillacXLR4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2005PontiacBonneville4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2004CadillacDeVille4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2004CadillacSeville4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2004CadillacSRX4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2004CadillacXLR4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
2004PontiacBonneville4.6LV8N/AIgnition Coil mounts to cylinder head and contains 1 unit
Directly replaces or cross-references 16 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Delphi — GN10455Eastern Catalytic — 50165Karlyn — 201155C16131911363682015218541259417612670154C1556CLS1225D596AE1064E1064PIC644UF564