033-7201-25 Idler Pulley Replaces 033-7201-00 033-2000-00 033-8000-00 15422 for Bad Boy MZ Magnum 54" 48", ZT Elite 60" 54" 48", Maverick 60" 54", Outlaw 54" 61" 72" Decks

What It Is

This is an aftermarket idler pulley designed to maintain belt tension and guide the drive belt on Bad Boy zero-turn mowers with 48", 54", 60", 61", and 72" decks. It replaces OEM part numbers 033-7201-00, 033-7201-25, 033-2000-00, 033-8000-00, and 15422.

Fitment & Compatibility

Before buying, confirm your Bad Boy model and deck size. This pulley fits MZ Magnum (54", 48"), ZT Elite (60", 54", 48"), Maverick (60", 54"), and Outlaw (54", 61", 72") decks. It is a direct replacement for the OEM idler pulley assembly. Measure your existing pulley’s outside diameter (typically 4") and shaft diameter (usually 1/2" or 5/8") to verify. Check that your belt routing matches the pulley’s flange design (flat vs. grooved). Aftermarket part, not OEM—quality can vary, so inspect bearing smoothness before installation.

Key Things to Know

• Bearing quality: Some users report premature bearing failure if the pulley is overtightened or exposed to debris. Spin it by hand before installing—any roughness means return it.
• Installation difficulty: Easy swap—usually two bolts, no special tools. Takes 10-15 minutes. Disconnect the spark plug first for safety.
• Common gotcha: The pulley may be slightly thicker than OEM, which can cause belt misalignment on certain deck models. Check belt clearance after installation.
• Warranty: No manufacturer warranty on this aftermarket part. Price is low, but you may get 1-2 seasons before replacement.

Should You Buy It

If you need a budget-friendly, functional idler pulley for a Bad Boy ZT mower and are comfortable with basic DIY installation, this is a solid choice. It’s not built to last like OEM, but for $20, it works well for light-to-moderate use. Skip it if you mow commercially or want guaranteed longevity—stick with the OEM pulley.