Wiring, Plug Set, GM V-8 Mallory Side Terminal: Spark Plug Wire Sets Part # 18-8803-2 Mallory Side Terminal Design OMC, MERCRUISER, VOLVO GM 8cyl 350 Conventional Mag Force Premium Marine Wire Leads Magnetic Suppression Kevlar Durable stainless steel wound conductor for maximun life, horsepower and engine performance Superior RFI suppression for the most sensitive electronic systemsCorrosion resistant stainless steel spark plug and distributor terminals for maximum conductivityreplaces: OMC 503752 replaces: Mercury Marine 84-816761A9 replaces: OMC 503755 replaces: Volvo 876533-1 replaces: Mercury Marine 84-813720A10 replaces: Mercury Marine 84-813720A9