756-05024 Drive V-Idler Pulley Compatible with Cub Cadet Craftsman MTD Troy Bilt XT1 XT2 LX42 LX46 50 GT50 ST54 SLX54 etc.

What It Is

This is a drive V-idler pulley (part #756-05024) that maintains proper tension on the mower deck belt, ensuring consistent blade engagement and belt longevity. It’s designed for select Cub Cadet, Craftsman, MTD, and Troy-Bilt lawn tractors with 42–54-inch decks, including XT1, XT2, LX42, LX46, GT50, ST54, and SLX54 models.

Fitment & Compatibility

• Check your model number: This pulley fits specific Cub Cadet XT1, XT2, LX42, LX46, GT50, ST54, and SLX54 series, plus Craftsman, MTD, and Troy-Bilt equivalents with the same deck size. Verify your mower’s model number (e.g., 13A? or 13B? prefix) against the OEM part #756-05024.
• Deck size matters: Works with 42-inch, 46-inch, 50-inch, and 54-inch decks. Measure your pulley diameter (typically 3.5 inches) to confirm—this is a V-groove idler, not a flat idler.
• OEM vs. aftermarket: This is an aftermarket replacement for the OEM pulley. It should match the original in dimensions and bearing type, but check that the inner bore (usually 5/8-inch) and shaft diameter align with your deck’s bracket.
• Belt compatibility: Ensure your deck belt is the correct width (typically 1/2-inch or 5/8-inch V-belt). A mismatched belt can cause slipping or premature wear.

Key Things to Know

• Quality: With a 5.0 rating from 22 reviews, this pulley is well-regarded for its durability and precise fit. Made from steel with a sealed ball bearing, it’s a solid upgrade over worn plastic or rusted OEM pulleys.
• Installation difficulty: Easy—remove the old pulley (usually a bolt or clip), slide on the new one, and re-tension the belt. No special tools required, but a socket wrench and belt tensioner tool help.
• Common gotcha: The pulley may be slightly narrower than some OEM versions. If your belt rides high or squeals, double-check belt alignment and tension. Also, verify that the mounting bracket isn’t bent—replacing a pulley won’t fix a warped bracket.
• Belt life: A failing idler pulley often causes belt wear or breakage. Replacing it proactively can extend belt life by 2–3 seasons.

Should You Buy It

If your mower’s deck belt is slipping, squealing, or wearing unevenly, and you’ve confirmed this pulley matches your model, buy it. At $8.79 with near-perfect reviews, it’s a low-cost, high-impact fix that restores proper tension and saves you from replacing belts prematurely. Best for DIY owners of Cub Cadet, Craftsman, MTD, or Troy-Bilt tractors with 42–54-inch decks.