This heavy-duty two-pack mower deck spindle kit is designed to replace 918-06991 and related spindle assemblies on compatible 42-inch riding mower and lawn tractor decks. Each assembly combines a reinforced cast-aluminum housing, sealed bearings, a star-pattern blade shaft, and a black steel 5.4-inch pulley for reliable blade support and smooth belt-driven operation. The kit includes two complete spindle-and-pulley assemblies with steel-colored flange nuts and installed mounting hardware. Always confirm the original part number, mower model, deck size, mounting pattern, pulley diameter, shaft pattern, and blade-center configuration before ordering.
Key Features
- Two complete spindle-and-pulley assemblies for convenient deck service
- Reinforced cast-aluminum housings with cooling ribs
- Sealed bearing design for smooth blade rotation and dependable operation
- Star-pattern spindle shaft for compatible star-center mower blades
- Black steel 5.4-inch pulleys supplied preassembled on each spindle
- Includes two steel-colored flange nuts and installed mounting hardware
- Designed for select 42-inch riding mower and lawn tractor decks
Replaces OEM / Cross Reference
| Brand / Supplier |
Reference Number(s) |
| Cub Cadet / MTD |
918-06991, 618-06991 |
| Retail Packaged Reference |
490-130-Y024 |
| Craftsman Reference |
CMXGZAM130024 |
| Pulley Specification |
5.4-inch diameter pulley |
| Deck Application |
Select 42-inch riding mower and lawn tractor decks |
| Application Note |
Fitment varies by model year and deck configuration; match the original spindle number and physical design |
Fits Brands
Cub Cadet, Troy-Bilt, MTD, Craftsman, MTD Gold, Bolens, Yard Machines, Huskee, and compatible equipment using the listed spindle references
Fits Models / Equipment Families (Partial List)
Fits many select 42-inch riding mowers and lawn tractors using spindle assembly 918-06991, including compatible Cub Cadet, Troy-Bilt, MTD, Craftsman, Bolens, Yard Machines, Huskee, and related equipment. Fitment varies by model year and deck configuration; verify the original spindle number, 5.4-inch pulley, mounting pattern, shaft pattern, and blade-center style before ordering.
Package Contents
2 x spindle-and-pulley assemblies; 2 x steel-colored flange nuts; installed mounting hardware
Listing Information
| Product Title |
2-Pack Mower Deck Spindle Assembly with 5.4-Inch Pulley for 918-06991, 42-Inch Decks |
| URL Handle |
gm-ms002-918-06991-mower-deck-spindle-2-pack |
| Meta Title |
918-06991 Mower Deck Spindle Assembly 2-Pack | GMX |
| Meta Description |
Two-pack mower deck spindle and 5.4-inch pulley kit for compatible Cub Cadet, Troy-Bilt, MTD and Craftsman 42-inch decks. Replaces 918-06991 and related references. |
| Search Tags |
GM-MS002, GMX spindle, 918-06991, 618-06991, 490-130-Y024, CMXGZAM130024, mower deck spindle, spindle assembly, spindle pulley, 2 pack spindle, Cub Cadet spindle, MTD spindle, Troy-Bilt spindle, Craftsman spindle, 42 inch deck, riding mower spindle |
Installation and Safety Notes
- Confirm the mower model, 42-inch deck configuration, original spindle number, mounting pattern, 5.4-inch pulley, shaft pattern, and blade-center configuration before ordering.
- Park on a level surface, disengage the blades, stop the engine, remove the key, and disconnect the spark plug or battery before service.
- Support the mower deck securely and follow the equipment manufacturer’s deck-removal and spindle-replacement procedures.
- Inspect the blade, belt, idlers, and surrounding deck hardware for wear or damage before reassembly.
- Tighten all fasteners to the equipment manufacturer’s specifications and verify free rotation, correct belt routing, and blade clearance before operation.
