Replacement MSD 88867 LS Coil Power Upgrade Harness & Relay Kit, For Sale - New and Used

Upgrade your LS ignition system with this Replacement MSD 88867 LS Coil Power Upgrade Harness & Relay Kit from Wholesale Sensors. Designed as a direct replacement for MSD part number 88867, this harness and relay kit provides a dedicated power supply to LS ignition coils for improved voltage stability and reliable spark delivery. Manufactured to meet or exceed OEM specifications, it features automotive grade wiring, durable connectors, and a high quality relay engineered for long lasting performance in demanding engine bay environments. Compatible with a wide range of GM LS engine applications, this upgrade harness helps reduce voltage drop, improve ignition consistency, and support reliable engine performance. Wholesale Sensors proudly provides US based customer support and backs this product with a 12 month warranty.

• ENHANCED IGNITION POWER DELIVERY: Replacement LS coil power upgrade harness and relay kit designed to provide a dedicated power source for LS ignition coils, helping improve voltage stability and ignition performance. Direct replacement for MSD part number 88867. Meets or exceeds OEM specifications for fit, electrical performance, and reliability in high performance and modified LS engine applications.
• LS ENGINE COMPATIBILITY: Compatible with GM LS based engines including LS1, LS2, LS3, LS6, LQ4, LQ9, LM7, LY6, L92, and other Gen III and Gen IV LS platforms commonly found in Chevrolet Camaro, Corvette, Silverado, Tahoe, Suburban, GMC Sierra, Yukon, and engine swap applications across multiple model years.
• HEAVY DUTY CONSTRUCTION: Manufactured with automotive grade wiring, durable insulation, high quality connectors, and a premium relay for dependable power distribution. Designed to withstand engine bay heat, vibration, and demanding performance environments. Each harness and relay kit is rigorously tested for electrical integrity, durability, and long term reliability.
• SOLVES VOLTAGE & IGNITION ISSUES: Designed for straightforward installation to provide consistent coil voltage and reduce voltage drop under load. Helps address ignition instability, weak spark, misfires, inconsistent engine performance, hard starting, and charging system related ignition issues. Ideal for performance upgrades, engine swaps, racing applications, and LS conversions.
• TRUSTED USA SUPPORT: Backed by Wholesale Sensors with responsive US based customer support and a 12 month warranty for added confidence. Trusted aftermarket automotive parts supplier focused on quality replacement components, dependable performance, and customer satisfaction for performance enthusiasts, builders, and professional technicians.

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