This Electronic Ignition Kit Replaces the electronic ignition breaker plate in Prestolite V8 IDU BID electronic distributors. Electronic Ignition Kit Prestolite V8 IDU BID | Pertronix 1589 Replacement breaker plate assembly for Prestolite V8 IDU distributors Delivers twice the voltage to the spark plugs increasing horsepower fuel economy and spark plug life 2:1 improvement over point type systems in a current fall time for increased coil output Rotating cobalt magnets mounted on the distributor shaft trigger an electronic switching module No points to burn pit or corrode no moving or rubbing parts to wear out Electronics are molded in epoxy eliminating deterioration from dirt oil grease or moisture Fits entirely in the distributor with no black box to clutter the engine compartment Stable timing no need for any adjustments No complicated wiring makes installation easy Works great in stock point type distributors as a trigger for multi spark CD ignitions eliminating the need for expensive aftermarket distributors Designed for use with most point type coils Optimal performance achieved when used with Flame Thrower 40,000 volt coil Temperature Range -50 degrees to 300 degrees F RPM range 0 to 15,000 RPM Legal in all 50 states and Canada Guaranteed for 30 months Not for use with OMC engines with shift interrupt systems Fits Prestolite IDU-7801 distributors Fits Volvo Penta engines with Prestolite IDU-7801 distributors from 1986-88 Replaces Crusader 41090 | Replaces OMC 3854077 Replaces Prestolite 65-189 | Replaces Volvo Penta 3854077