Spindle Assembly 1031140 / 1038323 for Exmark 60-Inch / 52-Inch Deck

Overview

This aftermarket 103-1140 / 103-8323 spindle assembly with pulley is a replacement-style mower deck spindle assembly for select Exmark mower deck applications.

This is one fixed package that includes 1 spindle assembly and 1 spindle pulley. Match your original spindle number and pulley number before ordering.

Key Features

• Aftermarket replacement-style spindle assembly with pulley
• Product Type: Spindle Assembly
• Lead Spindle Numbers: 103-1140, 103-8323
• Also Replaces: 103-8075, 103-3200, 103-3206, 103-1105
• Aftermarket Cross-References: 285-941, 285-931
• Common Deck References: 52 inch, 60 inch, and related Exmark deck paths depending on model
• Pulley included with this spindle assembly package
• Organized by spindle part number first to reduce fitment confusion

Compatible Brands & Model Series

This 103-1140 / 103-8323 spindle assembly with pulley is associated with select Exmark mower deck applications using the listed spindle replacement path.

Common supplier model references include:

• Exmark Lazer Z mower deck applications
• Exmark Lazer Z HP mower deck applications
• Exmark Lazer Z XP mower deck applications
• Exmark Turf Ranger deck applications
• Exmark Turf Tracer deck applications
• 52-inch and 60-inch deck references where the original spindle number matches the listed replacement path

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• Exmark Spindle Assembly Numbers: 103-1140, 103-8323, 103-8075, 103-3200, 103-3206, 103-1105
• Alternate No-Dash References: 1031140, 1038323, 1038075, 1033200, 1033206, 1031105
• Stens Cross-References: 285-941, 285-931

Spindle Specifications

• Spindle Numbers: 103-1140, 103-8323, 103-8075, 103-3200, 103-3206, 103-1105
• Length Reference: 162.8 mm / 6.40 inches in supplier item data
• Height Reference: 7 inches on common 103-1140 / 285-941 aftermarket data
• Pulley Outer Diameter Reference: 6-3/8 inches to 6-1/2 inches depending on replacement path and supplier measurement point
• Housing Material Reference: Aluminum on supplier item data
• Deck Size References: 52 inch and 60 inch paths appear in supplier data
• Application Note: Confirm spindle height, housing shape, mounting pattern, pulley diameter, shaft setup, blade hardware, and belt routing before ordering

Pulley Information

• Pulley Included: Yes, this listing is built as a spindle assembly with pulley package
• Pulley Outer Diameter Reference: 6-3/8 inches to 6-1/2 inches depending on supplier measurement point
• Pulley Note: Match pulley diameter, bore, belt groove, 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.

What’s Included

• 1 aftermarket replacement-style spindle assembly
• 1 spindle pulley
• Blades are not included unless shown in the product image or stated in the selected package contents
• Use the product image to confirm exact contents before checkout

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 number matches one of the listed Exmark replacement numbers

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 separation between spindle, pulley, and related blade references
• Built around the lead Exmark spindle numbers instead of loose marketplace keyword data
• 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 spindle assembly?

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

What are the lead part numbers for this listing?

The lead spindle numbers are 103-1140 and 103-8323. This listing also references 103-8075, 103-3200, 103-3206, and 103-1105.

Are 285-941 and 285-931 the same path?

They are related aftermarket cross-reference paths found in supplier data, but they are commonly listed under different Exmark spindle number groups. Match your original spindle number and physical dimensions before ordering.

Does this listing include blades?

No. This listing is built as 1 spindle assembly with pulley. Blade numbers are included only as related references unless blades are shown in the product image or stated in the package contents.

Does this listing include the pulley?

Yes. This listing is built as a spindle assembly with pulley package.

Can I order by deck size only?

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