This item is used on multiple models.
Converts Penn 555GS, 545GS, 535GS and 525GS
To a lower 4.25-1 Gear Ratio
Provides more cranking power
NOTE: This is the older style main gear that uses 6-49 drags not the newer 6-525MAG drags that have pips on them.
1 High Strength Bronze Alloy Main Gear
1 Stainless Steel Pinion Gear