Regitar USA Rotor f/Mercruiser Engines: GM V-6 Engines w/Thunderbolt IV V HEI Ignition [RMN015] Marine Hardware | Rope & Chain Pipe Screw included is a #4

Screw included is a #4 x 1/4" Phillips Pan Head Stainless Steel Screw

All Whale bilge switches are designed and manufacturers with highest quality at heart

C14 and MACH14 cables require no kit

Years of design and manufacturing experience coupled with collaboration with boat builders

Regitar USA Rotor f/Mercruiser Engines: GM V-6 Engines w/Thunderbolt IV V HEI Ignition [RMN015] Marine Hardware | Rope & Chain Pipe Screw included is a #4Rotor for Mercruiser Engines: GM V 6 Engines with Thunderbolt IV & V HEI Ignition Rotor for Mercruiser Engines: GM V 6 Engines with Thunderbolt IV & V HEI Ignition. Engine Brand: Mercury Mercruiser OMC Fitment: GM V 6 Engines with Thunderbolt IV & V HEI Ignition Brochure (pdf)