Spindle Assembly 037-2002-00 with 033-4820-00 Pulley for Bad Boy Revolt

Overview

This aftermarket 037-2002-00 spindle assembly with 033-4820-00 pulley is a replacement-style mower deck spindle and pulley package for select Bad Boy Revolt mower deck applications.

Key Features

• Aftermarket replacement-style Bad Boy mower deck spindle and pulley package
• Product Type: Spindle Assembly
• Lead Spindle Number: 037-2002-00
• Spindle Pulley Number: 033-4820-00
• Common Deck References: 34 inch and 36 inch
• Built around Bad Boy Revolt spindle and pulley part numbers first to reduce fitment confusion

Compatible Brands & Model Series

This 037-2002-00 / 033-4820-00 spindle and pulley package is associated with select Bad Boy Revolt mower deck applications using the listed spindle and pulley path.

Supplier model references include:

• Bad Boy Revolt 36-inch, 2020 through 2025
• Bad Boy Revolt 34-inch, 2020 through 2025
• Bad Boy Revolt SD 34-inch, 2023 through 2025

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• Bad Boy Spindle Assembly Number: 037-2002-00
• Bad Boy Spindle Pulley Number: 033-4820-00

Part Number Breakdown

Part numbers below are grouped by component type. This fixed package includes the spindle assembly and pulley shown below.

• Spindle / Mandrel Numbers: 037-2002-00, 037200200
• Spindle Pulley Numbers: 033-4820-00, 033482000

Spindle Specifications

• Spindle Number: 037-2002-00
• Length: 162.3 mm / 6.39 inches
• Width: 131 mm / 5.15 inches
• Height: 131 mm / 5.15 inches
• Mounting Hole Distance: 113 mm / 4.44 inches
• Deck Size References: 34 inch and 36 inch
• Application Note: Confirm spindle height, mounting pattern, pulley fit, shaft setup, and belt routing before ordering

Pulley Specifications

• Spindle Pulley Number: 033-4820-00
• Pulley Width: 23.7 mm / 0.93 inch
• Inner Diameter: 11.3 mm / 0.44 inch
• Outer Diameter: 131 mm / 5.15 inches
• Pulley Note: Match the pulley number, bore, outer diameter, groove style, and belt path before ordering.
• Finish Note: Pulley finish or color may vary by supplier batch. Match the part number, dimensions, and belt path instead of ordering by color.

Common Symptoms / When to Replace

• Mower deck spindle is noisy, loose, seized, or wobbling
• Blade has excessive play at the spindle shaft
• Deck vibration increases during blade engagement
• Spindle pulley is worn, damaged, bent, or no longer tracking the belt correctly
• Original spindle or pulley number matches the listed Bad Boy replacement path

Quick Ship Fulfillment

This item may ship directly from one of our trusted U.S. distribution partners to help reduce transit time. Packaging, labeling, or warehouse origin may vary, but the part will match the replacement numbers, fitment notes, and specifications shown in this listing.

Why Buy From PTO Direct USA

• Fitment-first product organization by Bad Boy spindle part-number path
• Clear separation between spindle and pulley references
• Clean fixed-package listing without unrelated blade, belt, or idler paths
• U.S.-focused fulfillment options for faster delivery when available

Need a Custom Package?

Need a different combination of parts? Email us the part type and part numbers you need, such as spindle assemblies, blades, belts, pulleys, reinforcement rings, bearings, or hardware. We can review the part-number path and quote a custom package when available.

FAQ

Is this an OEM Bad Boy spindle assembly?

No. This is an aftermarket replacement-style spindle and pulley package intended to replace the listed Bad Boy part-number path when the physical fitment details match.

What is the lead spindle number for this listing?

The lead spindle assembly number is 037-2002-00.

Is 033-4820-00 a spindle number?

No. 033-4820-00 is the spindle pulley number and should stay in the pulley bucket.

Does this fit Bad Boy Revolt 34-inch and 36-inch decks?

This spindle and pulley path is associated with select Bad Boy Revolt 34-inch, Revolt SD 34-inch, and Revolt 36-inch deck applications. Match your original spindle and pulley numbers before ordering.

Can I order by deck size only?

No. Deck size alone is not enough. Match the original spindle number first, then confirm pulley number, mower model, deck layout, mounting pattern, shaft setup, and belt routing before ordering.