Ferris Mower 5402539B WELD CASTER YOKE

What It Is

The Ferris 5402539B Weld Caster Yoke is the welded bracket assembly that connects the front caster wheel to the mower deck or frame. It’s designed for commercial zero-turn Ferris mowers, allowing the caster wheel to pivot and support the deck during turns and rough terrain operation.

Fitment & Compatibility

• Check your model: This yoke fits select Ferris commercial zero-turn models, including the IS1500Z, IS2000Z, IS2100Z, and IS2200Z series. Verify your specific model number against Ferris parts diagrams.
• OEM vs aftermarket: This is a genuine Ferris OEM part (part #5402539B). Aftermarket yokes may have slightly different weld geometry or metal thickness—stick with OEM for guaranteed fit on Ferris decks.
• Measurements: The yoke’s caster tube inner diameter is 0.75 inches (for a standard 3/4-inch caster stem). The overall yoke width (hole center to center) is approximately 4.5 inches. Measure your old yoke’s tube ID and bolt spacing before ordering.
• Deck size: Compatible with 48-inch, 52-inch, and 61-inch decks on the models listed. Not for older or smaller residential Ferris models.

Key Things to Know

• Installation difficulty: Moderate. You’ll need to lift the mower, remove the caster wheel, and unbolt the old yoke from the deck. Expect 30–60 minutes per side.
• Common gotcha: The weld joint on this yoke can crack over time under heavy commercial use—inspect the old yoke for hairline cracks before replacing. If one side failed, check the other side preemptively.
• Hardware not included: You’ll need to reuse or buy new bolts and lock washers (typically 5/16-18 x 1-inch grade 8). Don’t reuse worn bolts.
• Grease fitting: The yoke has a zerk fitting for the caster pivot—make sure to grease it after installation to prevent premature wear.

Should You Buy It

If you own a compatible Ferris commercial zero-turn and the front caster yoke is cracked, bent, or worn out, this OEM replacement is the correct fix. It’s priced at $187.40, which is typical for a genuine Ferris welded assembly—worth it for the precise fit and durability on a commercial mower. Avoid cheap aftermarket options that may fail quickly.