MaxPower 332512B Spindle Pulley Replaces Craftsman/Husqvarna/Poulan 129861, 153535, 173436, 177865, 532129861, 532173436, 532153535

What It Is

The MaxPower 332512B is an aftermarket spindle pulley that drives the mower blade belt on lawn tractors and zero-turn mowers. It replaces OEM pulleys for Craftsman, Husqvarna, and Poulan models, commonly found on 42-inch and 46-inch decks.

Fitment & Compatibility

Before buying, verify your deck size and model number—this pulley fits most 42” and 46” Craftsman, Husqvarna, and Poulan decks. Check your old pulley’s part number: it directly replaces OEM 129861, 153535, 173436, 177865, 532129861, 532173436, and 532153535. Measure the pulley’s outer diameter (about 4 inches) and the center hole (typically 5/8 inch) to confirm. Note this is an aftermarket part, not OEM, so tolerances may vary slightly—ensure your spindle shaft is not bent or worn.

Key Things to Know

• Quality: Most users report it’s as durable as OEM for typical residential use, but some note the metal finish can rust faster if left wet.
• Installation: Easy swap if you have basic tools—remove the blade, belt, and old pulley, then bolt on the new one. Torque to spec (usually 30-40 ft-lbs) to avoid wobble.
• Gotcha: The pulley may fit tighter on some spindles; lightly sand the shaft if needed. Also, double-check your belt routing—this pulley’s groove is standard, but belt width must match (usually 1/2 inch).
• Compatibility: Not universal—avoid for decks over 54 inches or non-Craftsman/Husqvarna/Poulan brands without cross-referencing.

Should You Buy It

If you need a reliable, budget-friendly replacement for a worn spindle pulley on a typical residential tractor deck, this is a solid choice. Avoid it if you require OEM precision for heavy commercial use or have a rare deck size—then stick with the original part.