Exmark 132-4718 Flat Idler Pulley Lazer Z CT HP Quest Turf Tracer Viking Hydro Metro Five Speed S Series

What It Is

The Exmark 132-4718 is a flat idler pulley that guides and tensions the mower deck belt on select Exmark zero-turn and walk-behind mowers. It’s a direct OEM replacement part, not an aftermarket generic.

Fitment & Compatibility

Before buying, confirm your machine’s model and serial number range. This pulley fits:

• Exmark Lazer Z (CT, HP series)
• Exmark Quest, Turf Tracer, Viking, Hydro Metro, Five Speed, and S Series

Check your deck size (typically 44–60 inches) and belt routing diagram—the 132-4718 is a smooth, flat pulley (not grooved) with a 4-inch outer diameter and a 5/8-inch bore. It uses a sealed ball bearing. If your mower has a grooved or smaller pulley, this won’t work. Cross-reference with Exmark’s parts lookup using your machine’s serial number to avoid mismatch.

Key Things to Know

• Quality: OEM Exmark part with sealed bearing—longer life than most aftermarket pulleys, but costs more.
• Installation: Moderate difficulty. Remove belt tension, unbolt the old pulley (usually a 5/16” or 3/8” bolt), and swap. No special tools needed, but a socket wrench and maybe a breaker bar for rusted bolts.
• Common gotcha: The pulley’s flat face can wear unevenly if the belt is misaligned or too tight. Check the spindle bearings and belt condition at the same time.
• Bearing noise: If the old pulley is noisy or wobbles, replace it immediately to avoid belt damage or deck vibration.

Should You Buy It

Buy this if you own one of the listed Exmark models and need a direct OEM replacement for a worn or noisy flat idler pulley. It’s a reliable, drop-in part for DIY maintenance—skip it if you’re on a tight budget and can verify aftermarket specs match (though OEM ensures fit and lifespan).