Spindle Assembly AM108925 / AM103502 for John Deere 38-Inch Deck

Overview

This aftermarket AM108925 / AM103502 spindle assembly is a replacement-style mower deck spindle assembly for select John Deere 38-inch mower deck applications.

Choose the package option that matches your repair. Match your original spindle number, pulley number, blade number, and belt number before ordering.

Key Features

• Aftermarket replacement-style John Deere mower deck spindle assembly
• Product Type: Spindle Assembly
• Lead Spindle Numbers: AM108925, AM103502
• Also Replaces: AM107590
• Common Deck Reference: 38 inch
• Available Package Options: single spindle, 38-inch spindle/blade/pulley kit, or 38-inch spindle/blade/pulley/belt kit
• Built around John Deere spindle part numbers first to reduce fitment confusion

Compatible Brands & Model Series

This AM108925 / AM103502 spindle assembly is associated with select John Deere 38-inch mower deck applications using the listed spindle path.

Common model references include:

• John Deere 108, 111, 111H, 112L, 116, 116H, 130, 160, 165, 170, 175, 180, and 185
• John Deere 240, 245, 260, 265, 285, 320, 325, 335, 345, and 355D
• John Deere GT225, GT235, GT235E, GT242, GT245, GT262, and GT275
• John Deere LX172, LX173, LX176, LX178, LX186, LX188, and LX200 Series references
• John Deere LT170 38-inch deck reference

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• John Deere Spindle Assembly Numbers: AM108925, AM103502, AM107590
• John Deere Pulley / Idler Numbers: AM107468, AM35862, AM37249, AM37442
• John Deere Blade Numbers: M82408, AM100946
• Aftermarket Blade Cross-References: B1JD5101, 330-300, 330300
• John Deere Belt Numbers: M117608, M122818, M73478, M84365

Optional Package Part Number Breakdown

Part numbers below may apply to available package options. Not every package includes every component listed. Select the option that matches the parts needed for your repair.

• Spindle / Mandrel Numbers: AM108925, AM103502, AM107590
• Pulley / Idler Numbers: AM107468, AM35862, AM37249, AM37442
• Blade Numbers: M82408, AM100946, B1JD5101, 330-300, 330300
• Belt Numbers: M117608, M122818, M73478, M84365

Available Package Options

Select the package option that matches the parts needed for your repair.

• Single Spindle Assembly: includes 1 replacement-style spindle assembly replacing AM108925 / AM103502 / AM107590.
• 38-Inch Spindle, Blade, and Pulley Kit: includes 2 spindle assemblies, 2 low-lift blades, and 1 pulley / idler when selected.
• 38-Inch Spindle, Blade, Pulley, and Belt Kit: includes 2 spindle assemblies, 2 low-lift blades, 1 pulley / idler, and 1 deck belt when selected.

Spindle Specifications

• Spindle Numbers: AM108925, AM103502, AM107590
• Item Length Reference: 132.4 mm / 5.21 inches in supplier item data
• Item Height Reference: 128.7 mm / 5.05 inches in supplier item data
• Material Reference: aluminum spindle housing path
• Common Deck Reference: 38 inch
• Application Note: Confirm spindle height, mounting pattern, shaft setup, pulley fit, blade hardware, and belt routing before ordering

Pulley / Idler Specifications

• Pulley / Idler Numbers: AM107468, AM35862, AM37249, AM37442
• Pulley / Idler Note: Included only with package options that show the pulley / idler in the selected product image or package contents.
• Fitment Note: Match pulley diameter, bore, belt groove, and belt routing before ordering.

Blade Specifications

• Blade Numbers: M82408, AM100946
• Aftermarket Blade Cross-References: B1JD5101, 330-300, 330300
• Blade Style: Low-lift blade path
• Common Deck Reference: 38 inch when used as a 2-blade package
• Blade Note: Blades are included only with the selected blade kit package.

Belt Specifications

• Belt Numbers: M117608, M122818, M73478, M84365
• Belt Note: The belt is included only with the selected spindle, blade, pulley, and belt kit.

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
• Pulley or idler is worn, damaged, noisy, or no longer tracking the belt correctly
• Blade is bent, worn, dull, or no longer cutting evenly
• Deck belt is cracked, glazed, stretched, or slipping
• Original spindle, pulley, blade, or belt number matches the listed John Deere 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 John Deere spindle part-number path
• Clear package options for spindle-only, spindle/blade/pulley, and spindle/blade/pulley/belt repairs
• Clean separation between spindle, pulley, blade, and belt 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 John Deere spindle assembly?

No. This is an aftermarket replacement-style spindle assembly or deck repair package intended to replace the listed John Deere part-number path when the physical fitment details match.

What are the lead spindle numbers for this listing?

The lead spindle numbers are AM108925, AM103502, and AM107590.

Are AM107468, AM35862, AM37249, and AM37442 spindle numbers?

No. Those are pulley / idler references and should stay in the pulley / idler bucket.

Are M82408 and AM100946 spindle numbers?

No. Those are blade numbers and should stay in the blade bucket.

Do all package options include blades and a belt?

No. The single spindle option includes only 1 spindle assembly. The spindle, blade, and pulley kit includes blades and a pulley / idler. The full kit includes the belt when selected.

Does this fit John Deere 38-inch decks?

This spindle path is associated with select John Deere 38-inch mower deck applications. Match your original spindle number and selected kit components 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, blade number, belt number, mower model, deck layout, mounting pattern, and belt routing before ordering.