Michigan Motorsports LS1/LS6 Ignition Coil Harness | Stock Location | Fits D580 Coils | Replaces GM #12558948 | Compatible with LS Engines Using Factory-Style Coil Brackets — Open-Box, 26% Off

Name: Michigan Motorsports LS1/LS6 Ignition Coil Harness | Stock Location | Fits D580 Coils | Replaces GM #12558948 | Compatible with LS Engines Using Factory-Style Coil Brackets
Brand: Michigan Motorsports
SKU: awhd-us-b0bvtbt2bh
Price: 38.47 USD
Availability: InStock

Brand: Michigan Motorsports

Condition: Used

$38⁴⁷

$51⁹⁹

-26% Save $13⁵²

Updated: 3 days ago

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Description

Important Installation Wire Color Guide: During installation, note the color on the second wire of each connector: purple wire goes to cylinder 1 or 8 coil, red goes to 2 or 7, blue goes to 3 or 6, and green goes to 4 or 5. Correct placement is critical for proper cylinder firing and ignition operation.

Designed for LS1 LS6 Coil Harness Repairs: Built for LS1 and LS6 ignition coil setups using stock location coil brackets, making this a practical replacement solution when the original harness is brittle, damaged, cut, missing, or no longer making reliable contact at the coil connectors.

Fits D580 and 12558948 Ignition Coils: Compatible with common factory-style LS ignition coils used on Camaro, Firebird, and Corvette applications. Matching the correct coil connector style helps ensure proper fitment, secure connection, and dependable ignition signal transfer.

Stock Location Bracket Compatibility: Designed for applications that retain factory-style coil bracket placement, helping keep the ignition wiring organized, routed cleanly, and positioned close to the original GM engine bay layout.

Ideal for LS Rebuilds or Coil Harness Repair: Perfect for replacing cracked, frayed, or corroded ignition harnesses without rewiring the full engine harness.

Restore factory performance or complete your LS swap with this LS1 / LS6 Ignition Coil Harness designed for D580 coils in stock bracket locations. This harness is a direct replacement for GM part #12558948, making it the go-to solution for repairing a damaged harness or wiring up your LS engine using OEM-style ignition components. Engineered to work with LS1 and LS6 intake manifolds, this harness maintains factory-correct routing, plug spacing, and coil connector placement. It's perfect for OEM restorations, swap projects, or servicing an aging LS1-based platform where ignition signal loss or coil issues can stem from worn harnesses. Whether you're replacing brittle wiring or building a clean swap setup, this plug-and-play harness eliminates headaches and delivers OEM-style reliability you can count on.

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Product Details

SKU:: awhd-us-b0bvtbt2bh
Model:: G5400
Country:: US
ASIN:: B0BVTBT2BH

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Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $14 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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