OEM 5 inch round 4 ohm - 7 watt speaker for pinball machine and arcade games.
5-1/2 inch diagonal hole to hole
Depending on availability, speaker may be a slightly higher wattage and is considered an upgrade.
Reference:
Williams 5555-12469-00
Rating:
This fits my Williams Shuffle Inn perfectly.
Rating:
Fits perfectly into my Williams System 6 system cabinet. The 4 mounting bolts line up perfectly. A lot more bass and and less treble than the stock speaker. A great, reasonably priced speaker.