8TEN Flat Idler Pulley for John Deere L120 L130 D170 D100 L118 L111 L108 Cub Cadet XT1-LT42 XT1-LT46 XT2-LX46

What It Is

The 8TEN Flat Idler Pulley is an aftermarket replacement pulley that guides and tensions the mower deck belt on select John Deere and Cub Cadet lawn tractors. It’s designed for use with 42-inch and 46-inch cutting decks.

Fitment & Compatibility

Before buying, confirm your mower’s model number and deck size. This pulley fits John Deere L100, L108, L111, L118, L120, L130, D100, D110, D130, D140, D150, D160, D170, and X300 series with 42” or 46” decks. It also fits Cub Cadet XT1-LT42, XT1-LT46, and XT2-LX46 models. The pulley has a 3.5-inch outer diameter, a 0.5-inch bore, and uses a 6202 bearing. It replaces OEM parts like John Deere M155182, M160186, and Cub Cadet 918-04109A. Measure your existing pulley’s diameter and bore to be sure—deck variations exist.

Key Things to Know

• Quality: 8TEN uses a sealed steel bearing, which is durable for residential use but may not match OEM longevity under heavy commercial loads.
• Installation: Straightforward bolt-on job—remove the deck belt, unbolt the old pulley, and bolt the new one in place. Basic hand tools are all you need.
• Gotcha: The pulley’s flat profile is for flat idler positions only; don’t use it where a V-groove pulley is required (check your belt routing diagram).
• Common issue: Some users report the bearing can be noisier than OEM after extended use—not a failure, but worth noting if you’re noise-sensitive.

Should You Buy It

Yes, if you need a reliable, budget-friendly replacement for a worn idler pulley on a residential John Deere or Cub Cadet tractor with a 42” or 46” deck. It’s a solid value at $17.95 for DIY maintenance, but skip it if you run a commercial operation and need maximum bearing life.