Quicksilver 393-9459Q1 Distributor Cap for MerCruiser Engines by General Motors with Conventional Ignition Systems PMGREA3 Fully adjustable

Fully adjustable

engines manufactured up to approximately 1992

Cut to length to fit your application

Fits all Thunderbolt IV distributor

Knob Control - With GRID 10/20

Quicksilver 393-9459Q1 Distributor Cap for MerCruiser Engines by General Motors with Conventional Ignition Systems PMGREA3 Fully adjustableFits marinized, 4 cylinder MerCruiser engines made by General Motors with conventional ignition systems. See your owners manual for replacement information and directions. Product Details Manufacturer part number: 393 9459Q1 Cap is made from a blend of PBT and PET plastics for increased strength, stiffness and resistance to warpage Solid brass inserts resist corrosion and electrical pitting for long service life Designed to resist RFI interference