2 Pack 756-04224 Idler Pulley Replaces 75604224 756 04224 756-0981A 756-0981B 112-3687 62-4540 for Cub Cadet LT1042 LT1045 LT1046 LT1050 LTX1040 LTX1042 LTX1045 LTX1046 I1046 LT2000 Mowers

What It Is

This is a 2-pack of idler pulleys (part number 756-04224) designed to guide and tension the drive belt on Cub Cadet lawn tractors. Used primarily for 42-inch to 46-inch cutting decks, the pulley keeps the belt aligned and under proper tension to spin the blades efficiently.

Fitment & Compatibility

Before buying, verify your mower’s model number and deck size. This pulley replaces OEM numbers 75604224, 756-0981A, 756-0981B, 112-3687, and 62-4540. It fits Cub Cadet LT1042, LT1045, LT1046, LT1050, LTX1040, LTX1042, LTX1045, LTX1046, I1046, and LT2000 series, but only with 42-inch or 46-inch decks (not 50-inch). Measure the existing pulley’s outer diameter—it should be approximately 3.5 inches. The inner bearing bore is 1/2 inch, and the pulley uses a 3/8-inch bolt. If your deck uses a different bearing size or bolt pattern, this won’t work. This is an aftermarket part, not OEM, but matches the original specs.

Key Things to Know

• Quality: Most users report it’s comparable to OEM in durability, but a few note the bearing may wear faster under heavy use. Inspect the bearing for smooth rotation before installation.
• Installation: Easy for DIYers—remove the old pulley (typically held by one bolt), swap in the new one, and retension the belt. No special tools needed.
• Common Gotcha: The pulley’s flange can be slightly thinner than OEM, which may cause belt alignment issues on some decks. Test belt tracking before full reassembly.
• Pack of Two: Useful for replacing both idlers at once, but verify your deck actually uses two identical pulleys—some models have different sizes.

Should You Buy It

If you need a budget-friendly replacement for a worn idler pulley on a compatible Cub Cadet tractor, this 2-pack is a solid value. It’s best for homeowners who want a quick fix and don’t require OEM branding. For heavy commercial use or if you’ve had aftermarket parts fail before, stick with the genuine Cub Cadet part.