Stens 280-762 Flat Idler Compatible with/Replacement for Exmark 109-0996 ID-0003 ID0003 280762 Fits: Exmark Lazer Z and Next Lazer Z Height: 1 5/8", ID: 5/8", OD: 8 3/4"

What It Is

The Stens 280-762 is a flat idler pulley that guides and tensions the mower deck belt on Exmark Lazer Z and Next Lazer Z zero-turn mowers. It’s a direct replacement for the OEM Exmark 109-0996 part, critical for keeping the blades engaged and the belt running smoothly.

Fitment & Compatibility

Before buying, verify these three things:

• Model & deck size: Confirmed fit for Exmark Lazer Z (all deck sizes) and Next Lazer Z. Check your specific model number—this pulley is not for older Lazer Z HP or Lazer Z X-Series without cross-referencing.
• OEM cross-reference: Replaces Exmark 109-0996, ID-0003, and ID0003. If your mower uses a different OEM number, measure the original pulley.
• Critical measurements: Height = 1 5/8", ID (bore) = 5/8", OD = 8 3/4". Measure your old pulley’s bore and outer diameter to confirm. A 5/8" bore requires a 5/8" bolt or shaft—don’t assume it matches without checking.

Key Things to Know

• Quality: Stens is a reputable aftermarket brand. This pulley is typically built to OEM specs, but inspect the bearing for smooth rotation before installing—some users report occasional tight bearings.
• Installation difficulty: Easy. Remove the belt, unbolt the old pulley (usually a single center bolt), and swap. No special tools needed beyond a socket wrench.
• Common gotcha: The bearing is sealed and non-serviceable. If it fails, you replace the whole pulley—no repacking grease.
• Torque matters: Tighten the center bolt to manufacturer spec (usually 25-35 ft-lbs). Overtightening can warp the pulley or damage the bearing.

Should You Buy It

Yes, if you own an Exmark Lazer Z or Next Lazer Z and need a budget-friendly, reliable replacement for a worn or noisy idler pulley. It’s a solid aftermarket alternative at half the price of OEM, but double-check your deck model and measurements to avoid a return.