UDC Parts 50-Inch 6-Point Star Mower Blades — Direct-Fit Pre-Sharpened High-Strength Steel Replacement

UDC Parts 942-04053C are direct-fit 6-point star replacement mower blades designed for 50-inch Cub Cadet decks and compatible models, offering pre-sharpened, high-strength steel cutting edges for reliable lawn cutting.

These blades are made to match the original equipment profile for many Cub Cadet, Troy-Bilt and Craftsman 50-inch decks that use the 6-point star center hole. Each blade arrives pre-sharpened with a protective coating that wears away during initial use, and is built from hardened steel intended for lasting performance and easy resharpening when needed. Because several mower models and spindle types exist, checking the OEM part number and center-hole style before purchase avoids fitment issues.

How do I know these blades will fit my mower?

Verify fit by comparing your current blade’s measurements and center hole to the specifications for the 942-04053C. The blade is measured diagonally, and the 6-point star center is distinctive—if your blade uses that center pattern and your deck is 50 inches, these are likely compatible.

• Diagonal blade length: 17-57/64"
• Width: 2-1/2"; cutting edge length: 5 23/64"
• Center hole: 6-point star; air lift hole: 1-1/16"
• Replaces OEM numbers like Cub Cadet 942-04053C, 742-04053A, MTD 490-110-0139

What machines and part numbers are supported?

These blades are intended for specific Cub Cadet, Troy-Bilt and Craftsman models that require the 6-point star blade. Compatibility includes a range of lawn tractors and zero-turn models, but some spindle serial numbers or sub-models are excluded—so cross-check the exact part number on your old blade.

• Fits Cub Cadet models: LTX1050, SLTX1050, LGTX1050 and similar 50" tractors
• Fits RZT and LT series where explicitly listed (e.g., RZT50 variants where applicable)
• Also compatible with Troy-Bilt Mustang RZT50 and selected Craftsman models when matched to OEM codes
• Not compatible with all RZT50 spindles—confirm spindle PN where noted

How easy is installation and what maintenance is needed?

Installation is straightforward: these blades are a direct replacement for the listed OEM parts and slide onto the 6-point star mounting pattern. Torque to the mower manufacturer’s specification and check blade balance after installation. Routine sharpening and inspection will keep cutting performance strong.

• Direct-fit design for fast swap with OEM parts
• Pre-sharpened edges—sharpen again when dull to extend life
• High-strength steel construction resists bending and wear
• 1-year product support for manufacturing concerns

Who is this product for?

These UDC Parts 942-04053C blades are aimed at owners of 50-inch Cub Cadet, Troy-Bilt and Craftsman mowers that use the 6-point star blade interface and require a diagonal length close to 17-57/64". If you maintain a larger residential or light-commercial lawn and want a robust, pre-sharpened replacement that mirrors OEM fit and performance, this blade is a practical choice—provided you confirm the exact part number and spindle compatibility before purchase.

Packaging may vary. Always follow mower manufacturer's installation and safety instructions when replacing blades.