Xiaoyudou Flat Idler Pulley 4-Pack for Bad Boy ZT/MZ 48"–60" Decks, 1-1/2" Width, 1/2" Bore

This is a 4-pack of Xiaoyudou flat idler pulleys engineered to replace specified Bad Boy mower pulleys for 48"–60" ZT and 48"–54" MZ decks.

These flat idler pulleys are precision-made spare parts designed to restore belt tracking and tension on select Bad Boy lawn mower decks. Each pulley measures 1-1/2" wide with a 5-3/4" outer diameter and a 1/2" bore, matching the common OEM dimensions used on many ZT, Outlaw and MZ series decks. Sold as a set of four, they let you swap worn or noisy pulleys across multiple deck locations without hunting for single replacements.

Which mower models and OEM numbers does this pulley set replace?

These pulleys are direct-fit replacements for several Bad Boy part numbers and fit a range of deck sizes across the ZT, Outlaw and MZ families. Confirm your original part number and deck measurement before ordering to ensure compatibility.

• Replaces Bad Boy part numbers: 033-7201-25, 033-7201-00, 033-2000-00, 033-8000-00
• Compatible with Bad Boy ZT Series: 48", 50", 54", 60" deck sizes
• Also fits Bad Boy Outlaw decks: 54", 61", 72" and MZ Series: 48", 54"

How do the dimensions and materials affect performance?

The pulleys are manufactured to match OEM dimensions so belts align and run smoothly. Their metal construction improves hardness and abrasion resistance compared with many low-grade aftermarket options, helping reduce vibration and prolong belt life.

• Width: 1-1/2" — supports standard deck belt widths
• Outer diameter: 5-3/4" — maintains correct belt wrap and tracking
• Bore: 1/2" — fits standard idler shafts and spindles
• High-hardness metal construction — resists wear and corrosion

How easy is installation and what tools are typically needed?

Installation is straightforward because the pulleys follow the same specs as the original parts. Most replacements require basic hand tools and only a few minutes per pulley when the belt and spindle are accessible.

• Designed to match OEM fit for plug-and-play replacement
• Requires common tools: wrenches, socket set, and possibly pliers
• Sold as a 4-pack to service multiple idler locations at once
• Manufacturer testing ensures correct tolerances out of the box

What warranty and support come with this Xiaoyudou pulley pack?

Each set includes a limited two-year warranty from the seller against manufacturing defects. Support is available through the seller for fitment questions or warranty claims, so you can get guidance if anything doesn’t match your deck setup.

• 2-year warranty covering manufacturing defects
• Pre-shipment quality checks for consistent dimensions
• Customer support for fitment and replacement inquiries

Who is this for: This 4-pack is intended for owners, fleet managers and maintenance professionals who service Bad Boy ZT, Outlaw or MZ series decks and need reliable, OEM-dimension idlers to restore belt performance. It’s ideal when multiple pulleys show wear, when you prefer to replace spares proactively, or when you want a cost-effective set to keep on hand for seasonal maintenance.