SKU: MSD88621
UPC: 085132886210
MPN: 88621
The MSD IGNITION 3-Pin Harness for Ready-to-Run Distributors is a purpose-built wiring assembly designed to integrate MSD Ready-to-Run ignition systems into applications requiring a three-pin connector interface. This harness bridges the gap between modern MSD ignition technology and classic or retrofit engine builds where the R/R distributor serves as the core ignition component.
The 3-pin configuration matches MSD's Ready-to-Run distributor pin layout, ensuring proper signal transmission from the ignition module to the coil and fire circuit. This harness eliminates the need for custom wiring fabrication and reduces installation time in engine swaps, restorations, and performance builds where MSD R/R distributors are the ignition source of choice. Compact and lightweight at 0.19 lbs, the harness is designed for efficient routing through tight engine bays without sacrificing durability or electrical integrity.
Builders and tuners working with MSD Ready-to-Run distributor systems—particularly in street performance, race preparation, and classic vehicle restoration—rely on matched harness components to maintain proper ignition timing and spark delivery. The standardized three-pin interface ensures compatibility across MSD R/R distributor models and simplifies troubleshooting during dyno tuning or post-installation diagnostics. This harness is essential for anyone building or upgrading an ignition system around an MSD Ready-to-Run distributor platform.
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