Exmark Caster Kit 116-8883, Compatible with Lazer Z, Z AS, Z HP, Metal Plate Mount Caster, 1 Count

What It Is

The Exmark Caster Kit 116-8883 is a metal plate mount caster assembly designed for Exmark Lazer Z, Z AS, and Z HP zero-turn mowers. It replaces worn or damaged front casters to restore smooth steering, reduce vibration, and prevent scalping on uneven terrain.

Fitment & Compatibility

• Model Check: Fits Exmark Lazer Z (all series), Lazer Z AS, and Lazer Z HP mowers. Not compatible with Lazer Z X-Series or older Lazer Z models with different mounting patterns.
• Deck Size: Works with 48", 52", 60", and 72" decks—caster mounting hole spacing is standard across these models.
• OEM vs Aftermarket: This is an OEM Exmark part (116-8883). Aftermarket alternatives exist but may use thinner steel or different bearing grades.
• Measurements: Verify your existing caster’s bolt pattern (typically 4-bolt, 4" center-to-center) and wheel diameter (usually 11" x 4"). This kit replaces a 4-bolt metal plate mount caster with a 4" wide wheel.
• Check Before Buying: Remove a caster and measure the bolt pattern and wheel dimensions. Confirm your mower’s serial number against Exmark’s compatibility list (available on their site) to avoid fit issues with pre-2000 models.

Key Things to Know

• Build Quality: Heavy-duty steel plate and sealed bearings resist debris and water ingress, lasting longer than aftermarket casters in wet or sandy conditions.
• Installation Difficulty: Moderate. You’ll need a jack or blocks to lift the mower front, plus a socket wrench and torque wrench. Expect 30–60 minutes per caster.
• Common Gotcha: The included hardware may not fit if your mower has aftermarket wheels or altered mounting holes. Always reuse OEM bolts if possible.
• Maintenance: Grease fittings are present—apply lithium grease every 25 hours to extend bearing life and prevent wobble.

Should You Buy It

Buy this if you own an Exmark Lazer Z, Z AS, or Z HP and need a direct OEM replacement that matches factory specs. It’s overkill for occasional home use but ideal for commercial operators who demand durability and zero downtime. Skip it if you’re on a tight budget or your mower uses a different mounting pattern (e.g., 3-bolt or non-Exmark models).