Spindle Assembly 918-04822B for Cub Cadet MTD RZT LTX Ultima

Overview

This aftermarket 918-04822B spindle assembly is a replacement-style mower deck spindle assembly for select Cub Cadet, MTD, Troy-Bilt, White Outdoor, Yard Machines, Yard-Man, and related MTD-built mower deck applications.

This listing is organized around the 918-04822B spindle path. Some package options may include additional deck repair components such as blades, idler pulleys, deck belts, or deck spindle reinforcement rings, but the lead replacement path is the spindle assembly.

Key Features

• Aftermarket replacement-style mower deck spindle assembly with pulley
• Product Type: Spindle Assembly
• Lead Part Number: 918-04822B
• Common Replacement Path: 918 / 618 spindle family
• Common Deck References: 42 inch and 60 inch decks
• Optional package variants may include spindle assemblies, blades, idler pulleys, deck belts, or deck spindle reinforcement rings
• Organized by spindle or mandrel part number first to reduce fitment confusion

Compatible Brands & Model Series

This 918-04822B spindle assembly is used across several MTD-built mower deck platforms. Because this spindle path appears in both 42-inch and 60-inch deck packages, match your original spindle or mandrel number before ordering.

60-inch Cub Cadet Ultima and zero-turn references include:

• Cub Cadet Ultima ZT1, ZT2, ZT3, ZTS2, Z2, Z3, and Z3-S 60-inch FAB deck references
• ZT2-60 KH FAB and ZT2-60 KW FAB model paths
• ZT3-60 KW FAB model paths
• ZTS2-60 KH FAB model paths
• 19A70057 / 19A70057100 60-inch Xtreme deck reference
• Recent 2025-2026 Z2, Z3, Z3-S, and ZT1 60-inch references where this spindle path appears

42-inch Cub Cadet and MTD-built references include:

• Cub Cadet CC30, LTX1040, LTX1042, LTX1042KH, LTX1042KW, LTX1045, RZT-42, RZT-L42, RZT-S42, and EZT-L42 references
• MTD RZT42, RZT-42, RZT-S42, and 700 Series lawn tractor references from 2010 and newer
• Craftsman PYT9000 42-inch yard tractor references
• Yard Machines, Yard-Man, MasterCut by MTD, MTD Gold, Huskee, and Murray 42-inch lawn tractor references
• White Outdoor and Columbia 42-inch lawn tractor references, including LT-2000, P 91 GS, V 90 GS, and V 91 GS paths
• Troy-Bilt Pony, Bronco, and Super Bronco 42-inch lawn tractor references from the same MTD-built deck family

Verify your part numbers before ordering.

Replaces OEM Part Numbers

• Cub Cadet / MTD: 918-04822B, 918-04822A, 918-04822, 618-04822B, 618-04822A, 618-04822, 918-04889A, 918-04889, 618-04889A, 618-04889, 918-04950, 618-04950

Aftermarket Cross-Reference Numbers

• Spindle Cross-Reference: 285-868
• Blade Cross-Reference: 330-872
• Idler Pulley Cross-Reference: 280-646
• Deck Belt Cross-Reference: 265-201

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: 918-04822B, 918-04822A, 918-04822, 618-04822B, 618-04822A, 618-04822, 918-04889A, 918-04889, 618-04889A, 618-04889, 918-04950, 618-04950
• Aftermarket Spindle Cross-Reference: 285-868
• 60-Inch Toothed Mulching Blade Numbers: 742P05620, 742P05620-X, 742-05620-X, 490-110-C187, 490-110-C188
• 42-Inch Blade Numbers: 490-110-M108, 742-04308, 742-04308A, 742-04312, 742-04312A, 742-0656, 942-04308, 942-04308A, 942-04312, 942-04312A, 942-0656, OCC-742-04312, 330-872
• Idler Pulley Numbers: 753-08068A, 753-08171, 756-04129, 756-04129B, 756-04129C, 956-04129, 956-04129C, 280-646
• Deck Belt Numbers: SPM201671081, GX10851, 265-201, 754-04060, 754-04060A, 754-04060B, 754-04060C, 954-04060, 954-04060A, 954-04060B, 954-04060C, 954-05056
• Repair Ring: Deck spindle reinforcement ring, no separate ring part number provided

Single Spindle Specifications

• Spindle Part Number: 918-04822B
• Also Replaces: 918-04822A, 918-04822, 618-04822B, 618-04822A, 618-04822
• Length: 171.5 mm / 6.75 inches
• Pulley Width: 16 mm / 0.62 inch
• Pulley Outer Diameter: 156 mm / 6.14 inches
• Material: Aluminum

Optional Package Component Specifications

The following specifications apply to optional package variants that include blades, idler pulleys, deck belts, or deck spindle reinforcement rings.

• 42-Inch Kit Spindle Height: 171.5 mm
• 42-Inch Kit Spindle Outer Diameter: 152.4 mm
• 42-Inch Kit Spindle Hole Distance: 89.9 mm
• 60-Inch Deck Spindle Height: 162 mm / 6-3/8 inches
• 60-Inch Deck Spindle Pulley Diameter: 156 mm / 6-1/8 inches
• 60-Inch Toothed Mulching Blade Length: 520.7 mm / 20-1/2 inches
• 60-Inch Toothed Mulching Blade Thickness: 4.3 mm / 0.16 inch
• 60-Inch Toothed Mulching Blade Center Hole Diameter: 27 mm / 1.06 inches
• 60-Inch Toothed Mulching Blade Center Hole: 6-point star
• 60-Inch Blade Finish: Powder coated
• 42-Inch Blade Length: 540 mm
• 42-Inch Blade Width: 63.5 mm
• 42-Inch Blade Thickness: 4.16 mm
• 42-Inch Blade Hole Distance: 77 mm
• 42-Inch Blade Center Hole: 6-point star
• Idler Pulley Width: 26.4 mm
• Idler Pulley Inner Diameter: 9.6 mm
• Idler Pulley Outer Diameter: 123.8 mm
• Deck Belt Width: 1/2 inch
• Deck Belt Overall Length: 2451 mm / 96-1/2 inches
• Repair Ring Length: 168 mm / 6.6 inches
• Repair Ring Width: 168 mm / 6.6 inches
• Repair Ring Height: 5 mm / 0.2 inch

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, idler, or belt system is worn, damaged, or no longer tracking correctly
• Original spindle number matches one of the listed 918 / 618 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 spindle, blade, idler pulley, belt, and repair ring 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 918-04822B. This listing also references related 918 and 618 replacement numbers in the same spindle path.

Do all package options include blades, idler pulleys, belts, or repair rings?

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 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 belt path before ordering.