LH Spindle Assembly 127-0570 with 105-7734 Pulley for Toro Z Master

Overview

This aftermarket 127-0570 LH spindle assembly with 105-7734 pulley is a replacement-style mower deck spindle and pulley package for select Toro Z Master commercial zero-turn mower deck applications.

This listing is organized around the 127-0570 left-hand spindle assembly and the matching 105-7734 spindle pulley. Match your original spindle number, pulley number, and mounting pattern routing before ordering.

Key Features

• Aftermarket replacement-style mower deck spindle assembly with pulley
• Product Type: Spindle Assembly
• Lead Spindle Number: 127-0570
• Spindle Position: LH / left-hand spindle path
• Pulley Number: 105-7734
• Common Deck References: 60 inch and 72 inch Toro Z Master deck paths
• Built around Toro Z Master commercial mower deck applications
• Organized by spindle and pulley part number first to reduce fitment confusion

Compatible Brands & Model Series

This 127-0570 / 105-7734 spindle and pulley package is associated with select Toro Z Master commercial mower deck applications.

Common model references include:

• Toro Z Master 74064, 60-inch deck reference
• Toro Z Master 74074, 72-inch deck reference
• Toro Z Master 5000 Series mower deck references
• Toro Z Master 6000 Series mower deck references
• Toro Z Master 7500-D Series mower deck references
• Additional Toro Z Master / GrandStand applications using the 127-0570 LH spindle and 105-7734 pulley path

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• Toro LH Spindle Assembly Number: 127-0570
• Alternate Spindle Reference: 1270570
• Toro Spindle Pulley Number: 105-7734
• Alternate Pulley Reference: 1057734

Part Number Breakdown

Part numbers below are grouped by component type. Verify your original part numbers before ordering.

• Spindle / Mandrel Number: 127-0570, 1270570
• Spindle Pulley Number: 105-7734, 1057734

Important Part Number Note

The number 105-7734 is a spindle pulley number and should not be listed as a spindle or mandrel number. The lead spindle assembly number for this listing is 127-0570.

Spindle Specifications

• Spindle Number: 127-0570
• Spindle Position: LH / left-hand spindle path
• Application Type: Toro Z Master commercial mower deck spindle assembly
• Deck Size References: 60 inch and 72 inch paths appear in supplier data
• Application Note: Confirm left-hand spindle position, mower model, serial range, mounting pattern, pulley setup, and belt path before ordering

Pulley Specifications

• Pulley Number: 105-7734
• Pulley Type: Toro Z Master spindle pulley
• Pulley Outer Diameter Reference: 7-5/8 inches
• Pulley Height Reference: 1 inch
• Pulley Inner Diameter Reference: approximately 1-15/16 inches to 2 inches depending on supplier measurement point

What’s Included

• 1 aftermarket replacement-style LH spindle assembly replacing 127-0570
• 1 spindle pulley replacing 105-7734
• Use the selected product image and package option 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, bent, damaged, or no longer tracking the belt correctly
• Original spindle number matches 127-0570 or pulley number matches 105-7734

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 and pulley 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 Toro spindle assembly?

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

What is the lead spindle number for this listing?

The lead spindle assembly number is 127-0570. This is the LH / left-hand spindle path.

Is 105-7734 a spindle number?

No. 105-7734 is a Toro spindle pulley number and should stay in the pulley bucket.

Does this listing include the pulley?

Yes. This listing is built around the 127-0570 LH spindle assembly with the 105-7734 spindle pulley. Review the selected product image before checkout.

Does this fit Toro Z Master 60-inch and 72-inch decks?

Supplier references include Toro Z Master 60-inch and 72-inch deck paths, including model references such as 74064 and 74074. 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 and pulley number, then confirm mower model, serial range, spindle position, mounting pattern, pulley size, and belt routing before ordering.