Spindle Housing Assembly 107-4065 / 103-8280 for Exmark Toro

Overview

This aftermarket 107-4065 / 103-8280 spindle housing assembly is a replacement-style mower deck spindle housing for select Exmark and Toro commercial mower deck applications.

Choose the 1-pack, 2-pack, or 3-pack option that matches your repair. Match your original spindle housing number before ordering.

Key Features

• Aftermarket replacement-style spindle assembly
• Product Type: Spindle Housing Assembly
• Lead Part Numbers: 107-4065, 103-8280
• Aftermarket Cross-Reference: Stens 285-215
• Available Package Options: 1-pack, 2-pack, and 3-pack
• Common Deck References: 32 inch, 48 inch, and larger Exmark / Toro commercial deck paths depending on model
• Includes grease zerk, retaining ring, and 2 spindle bearings per housing assembly
  

Compatible Brands & Model Series

This 107-4065 / 103-8280 spindle housing assembly is associated with select Exmark and Toro commercial mower deck applications using the listed spindle housing path.

Common model-series references include:

• Exmark Lazer Z mower deck applications
• Exmark Front Runner deck applications
• Exmark Metro walk-behind mower deck applications
• Exmark Phazer mower deck applications
• Exmark Turf Ranger mower deck applications
• Exmark Turf Tracer mower deck applications
• Exmark Viking mower deck applications
• Toro Z Master commercial mower deck applications where the original housing number matches the listed path

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• Exmark: 103-2533, 103-2547, 103-2548, 103-7975, 103-8280, 107-4065, 1-323532, 1-634619
• Toro: 103-2533, 103-7975, 107-4065, 1-323532, 1-634619
• Stens: 285-215

Part Number Breakdown

• Spindle Housing Numbers: 107-4065, 1074065, 103-8280, 1038280, 103-2533, 1032533, 103-2547, 1032547, 103-2548, 1032548, 103-7975, 1037975, 1-323532, 1323532, 1-634619, 1634619
• Aftermarket Cross-Reference: 285-215, 285215
• Additional Supplier References to Verify: 323532, 634619, 303558, 403183

Available Package Options

Select the package option that matches the number of spindle housing assemblies needed for your repair.

• 1-Pack: includes 1 spindle housing assembly.
• 2-Pack: includes 2 spindle housing assemblies.
• 3-Pack: includes 3 spindle housing assemblies.

Spindle Housing Specifications

• Spindle Housing Numbers: 107-4065, 103-8280
• Aftermarket Cross-Reference: Stens 285-215
• Height: 3-3/4 inches
• Inner Diameter: 1 inch
• Outer Diameter Reference: 5-1/4 inches on common aftermarket data
• Included Per Housing: grease zerk, retaining ring, and 2 spindle bearings
• Application Note: Confirm spindle housing number, shaft compatibility, mounting pattern, pulley setup, blade hardware, and deck layout before ordering

Common Symptoms / When to Replace

• Spindle housing is cracked, worn, damaged, or loose at the mounting points
• Bearings are noisy, rough, seized, or have excessive play
• Blade has excessive movement at the spindle area
• Deck vibration increases during blade engagement
• Original spindle housing number matches 107-4065, 103-8280, or another listed replacement number

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 replacement part-number path
• Clear 1-pack, 2-pack, and 3-pack quantity options for the same housing assembly
• Clean separation between spindle housing, shaft, pulley, blade, and hardware references
• 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 Exmark or Toro spindle housing?

No. This is an aftermarket replacement-style spindle housing assembly intended to replace the listed Exmark / Toro part-number path when the physical fitment details match.

What are the lead part numbers for this listing?

The clean lead part numbers are 107-4065 and 103-8280. This listing also cross-references 103-2533, 103-2547, 103-2548, 103-7975, 1-323532, 1-634619, and Stens 285-215.

Does this listing include the spindle shaft?

No. This listing is for the spindle housing assembly path. Shaft, pulley, blade, and mounting hardware are not included unless shown in the selected product image.

What is included with each housing assembly?

Each spindle housing assembly includes the housing, grease zerk, retaining ring, and 2 spindle bearings.

What are the available quantity options?

This listing is available as a 1-pack, 2-pack, or 3-pack of the same spindle housing assembly.

Are 303558 and 403183 confirmed OEM replacement numbers?

Those numbers appeared in supplier data, but they were not confirmed in the strongest cross-reference sources. Keep them as additional supplier references unless your distributor confirms them.

Can I order by deck size only?

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