MSD Universal Wiring Harnesses 8877 - Free Shipping on Find MSD Universal Wiring Harnesses 8877 and get Free Shipping on Orders Over $99 at Summit Racing! MSD offers universal wiring harnesses to simplify the installation of a MSD 6 series box on late model vehicles. The harnesses plug in between the ignition coil and the factory coil connector. Four wires with corresponding colors and matching connectors then connect directly to the MSD 6 wires.5/5(6)Price: $44Brand: MSD Ignition Amazon: MSD 8877 Wiring Harness: Automotive Dec 30, 2017Great harness for wiring a MSD 6 series to a GM single plug coil. It allows you to splice into your factory harness without cutting it. The shielded male spade connectors on the harness are a little problematic since they don't fit most shielded female spades.4.5/5(7)Price: $44Brand: MSD Chevrolet Blazer Engine Wiring Harness - Wiring Harness Search our online engine wiring harness catalog and find the lowest priced discount auto parts on the web. We sell wholesale to the public. We offer high quality new, OEM, aftermarket and remanufactured Chevrolet Blazer Engine Wiring Harness parts. We specialize in a wide-variety of high-quality car parts and accessories for your car, truck or SUV. Chevrolet Blazer Engine Wire Harnesses at Andy's Auto Sport We go out of our way to carry every major line of Chevrolet Blazer engine wire harnesses, so that whether you are looking for a cheap Chevrolet Blazer engine wire harness or a replacement engine wire harness or anything in between, we've got it for you.