Spindle Assembly 618-06977 for Craftsman / Columbia Yard / Troy-Bilt 46-Inch Deck

Overview

This aftermarket 618-06977 spindle assembly is a replacement-style mower deck spindle assembly for select Cub Cadet, Craftsman, Troy-Bilt, Columbia, Ryobi, and related MTD-built 46-inch mower deck applications.

This listing is organized around the 618-06977 / 918-06977 spindle path. Some package options may include additional deck repair components such as high-lift blades, idler pulleys, flange nuts, or hardware, but the lead replacement path is the spindle assembly.

Key Features

• Aftermarket replacement-style mower deck spindle assembly
• Product Type: Spindle Assembly
• Lead Part Number: 618-06977
• Also Replaces: 618-06977A, 918-06977, 918-06977A, 490-130-C014
• Common Deck Reference: 46 inch
• Optional package variants may include spindle assemblies, high-lift blades, idler pulleys, flange nuts, and hardware
• Organized by spindle or mandrel part number first to reduce fitment confusion

Compatible Brands & Model Series

This 618-06977 spindle assembly is associated with select 46-inch MTD-built mower deck applications.

Craftsman model references include:

• Craftsman T8200, T8600, T2800, T3100, T225, and T240 lawn tractor references
• Common model-code paths include 247.202420, 247.204390, 247.204420, 247.270390, 247.270420, 247.270421, 247.270490, 247.270491, 247.273330, and 247.273910

Cub Cadet model references include:

• Cub Cadet XT1-LT 46 Enduro lawn tractor references
• Cub Cadet XT1-LT 46 EFI FAB references
• Cub Cadet XT1-LT 46 KH references
• Cub Cadet XT2-LX 46 and XT2-LX 46 EFI FAB references

Troy-Bilt model references include:

• Troy-Bilt Super Bronco 46-inch and Super Bronco XP 46-inch lawn tractor references
• Troy-Bilt TB 2246, model 13AAA1KT066, 2015-2017
• Common model-code paths include 13A9A1KN066, 13AAA1BT066, 13AJA1BN066, 13AJA1BT066, 13APA1BN066, 13APA9BT066, and 13ATA9BT066

Additional MTD-family references include:

• Columbia CYT 4622 SE, including 13APA1KT897 and 13AZA1KT897 references
• Ryobi model-code references matching Craftsman and Columbia 46-inch deck paths

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• MTD / Cub Cadet / Craftsman / Troy-Bilt / Columbia / Ryobi: 618-06977, 618-06977A, 918-06977, 918-06977A, 490-130-C014

Aftermarket Cross-Reference Numbers

• Aftermarket spindle reference: 285-700

Optional Package Part Number Breakdown

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

• Spindle / Mandrel Numbers: 618-06977, 618-06977A, 918-06977, 918-06977A, 490-130-C014
• Aftermarket Spindle Cross-Reference: 285-700
• Blade Numbers: 490-110-C131, 742-04244, 742-04244A, 742-04290, 742-04290A, 754-04244, 942-04244, 942-04244A, 942-04290, 942-04290A, OCC-742-04244
• Idler Pulley Numbers: 756-05034, 756-05034A
• Flange Nut / Hardware Numbers: 712-0417A, 712-0417, 712-0417AP, 753-05549, 912-0417A, 112-0330

Single Spindle Specifications

• Spindle Part Number: 618-06977
• Also Replaces: 618-06977A, 918-06977, 918-06977A, 490-130-C014
• Deck Size Reference: 46 inch
• Height: 169.8 mm / 6.68 inches
• Pulley Outer Diameter: 159 mm / 6.2 inches
• Pulley Width: 13.5 mm / 0.53 inch
• Mounting Hole Distance: 91 mm / 3.58 inches
• Material: Aluminum

Optional Package Component Specifications

The following specifications apply to optional package variants that include additional deck repair components.

• High-Lift Blade Length: 590.5 mm / 23-1/4 inches
• High-Lift Blade Width: 76.2 mm / 3 inches
• High-Lift Blade Thickness: 4.16 mm / 0.164 inch
• Blade Mounting Hole Distance: 76.2 mm / 3 inches
• Blade Center Hole: 6-point star
• Blade Hole Diameter: 28.5 mm / 1.12 inches
• Blade Material: Steel
• Flange Nut Width: 13.9 mm / 0.54 inch
• Flange Nut Inner Diameter: 14.5 mm / 0.57 inch
• Flange Nut Outer Diameter: 36.6 mm / 1.43 inches
• Flange Nut Material: Iron
• Idler Pulley Width: 43 mm / 1.69 inches
• Idler Pulley Inner Diameter: 17 mm / 0.67 inch
• Idler Pulley Outer Diameter: 133 mm / 5.23 inches
• Idler Pulley Material: Steel

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, blade, or idler system is worn, damaged, or no longer tracking correctly
• Original spindle number matches 618-06977, 618-06977A, 918-06977, 918-06977A, or 490-130-C014

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 spindle, blade, pulley, nut, and hardware references for package variants
• 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 spindle assembly?

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

What is the lead part number for this listing?

The lead spindle part number is 618-06977. This listing also references 618-06977A, 918-06977, 918-06977A, and 490-130-C014 in the same spindle path.

Do all package options include blades, idler pulleys, and hardware?

No. Package contents vary by selected option. Use the variant title and product images to confirm whether you are ordering a single spindle assembly or a larger deck repair package.

Can I order by deck size only?

No. Deck size alone is not enough. Match the original spindle or mandrel number and confirm your mower model, deck setup, pulley layout, mounting pattern, blade path, and idler layout before ordering.