Wadoy 2 Pack 52114 Filter Compatible with Hydro Gear, Oil Transmission Filter Replaces for Toro/Exmark 109-3321 Ariens/Gravely 21545100 Bad Boy 063-1050-00 Husqvarna 539113466 Ferris 5101026X1

What It Is

The Wadoy 2 Pack 52114 Filter is an aftermarket oil transmission filter designed for Hydro-Gear hydrostatic transaxles found on zero-turn mowers and riding tractors. It replaces worn filters to keep transmission fluid clean and protect the hydraulic system from debris.

Fitment & Compatibility

Before buying, confirm your mower uses a Hydro-Gear transaxle with a spin-on oil filter. This filter fits models from Toro, Exmark, Ariens, Gravely, Bad Boy, Husqvarna, and Ferris—but not all. Check your owner’s manual or existing filter for the OEM part number: it replaces Toro/Exmark 109-3321, Ariens/Gravely 21545100, Bad Boy 063-1050-00, Husqvarna 539113466, and Ferris 5101026X1. Measure the thread size (typically 3/4-16) and gasket diameter (about 2.5 inches). If your filter uses a different thread or a cartridge-style element, this won’t fit.

Key Things to Know

• Quality vs OEM: This is a budget alternative, not an OEM Hydro-Gear filter. Some users report slightly less robust construction, but most find it works fine for routine changes.
• Installation: Very easy—just spin off the old filter and hand-tighten the new one (no tools needed). Be sure to apply a thin coat of oil to the gasket before installing.
• Common Gotcha: Over-tightening can damage the gasket or housing. Tighten by hand only, then give a quarter-turn with a filter wrench if needed.
• Fluid Level: After replacing, you’ll need to check and top off transmission fluid. The filter swap itself won’t cause fluid loss, but air in the system can make the mower run rough briefly.

Should You Buy It

If you have a compatible Hydro-Gear-equipped mower and want a cost-effective spare or two-pack for future changes, this is a solid pick. It’s not built to racing or commercial duty specs, but for residential or light commercial use, it’ll keep your transmission healthy. Skip if you need OEM-certified parts for warranty or heavy commercial use.