703 45CI Transmission Filler Plug, Parkerized

For those performing an authentic, factory-style restoration on a vintage 45 cubic inch Harley, this parkerized transmission filler plug from Colony is the correct choice. It fits 1932 through 1974 45" and Servi-Car transmissions, serving as a direct replacement for OEM number 703. The parkerized finish provides the understated, matte-black appearance that was standard on many military and civilian models of that era, offering excellent corrosion resistance while maintaining a period-accurate look. Like all Colony hardware, this plug is manufactured to exacting standards, ensuring the threads are clean and the fit is tight, preventing oil leaks and keeping your classic drivetrain protected.