Vendor:Speedzone Performance LLC
SPDZ1 Upgraded LS Ignition Coil Harness – High-Performance Replacement (Sold Per Cylinder Head)
SPDZ1 Upgraded LS Ignition Coil Harness – Sold Per Cylinder Head (One Side)
Upgrade your LS engine with the SPDZ1 Ignition Coil Harness, engineered with better-than-stock wiring for improved durability and performance. Whether you’re replacing a worn factory harness or preparing for an engine swap, this harness delivers reliability you can trust.
Built with factory-style connectors and weatherproof rubber seals, it ensures a secure, moisture-resistant connection for long-term use in demanding environments. Perfect as a replacement, an upgrade, or a spare to keep on hand for your LS project.
Key Features:
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Designed for GM LS engines
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High-quality wiring – stronger than OEM
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Factory-style connectors for plug-and-play fitment
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Weatherproof rubber seals for maximum protection
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Ideal for replacements, upgrades, or engine swaps
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Sold per cylinder head (per side)
Get the dependable performance your LS build deserves with the SPDZ1 Ignition Coil Harness.
Compatibility:
- Guaranteed fit with GM coils: D510C (12570616) and D514A (12573190)
- May also work with: D581 (12558693), D585, D513A (12570616), MSD 8287, 12619161
⚠️ Important: Always double-check connections to confirm fitment with your specific factory harness and ignition coils.
Pairs well with
Ships within 1-2 business days.
Free shipping & returns
SPDZ1 Upgraded LS Ignition Coil Harness – High-Performance Replacement (Sold Per Cylinder Head)
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.