Mulching Mower Blades 6 Point Star for 46 in Decks - Reliable Cut

In this review we look at the UDC replacement mulching mower blades designed for 46 in decks using a 6-point star center hole. The blades are aimed at owners of Cub Cadet, Troy-Bilt, Craftsman and other 46 in deck riding mowers who need a direct-fit replacement that balances durability and cutting performance. The single biggest reason to buy is the precise fit and OEM-cross compatibility with multiple model lines, which makes installation straightforward and reduces vibration and chatter that come from ill-fitting blades.

Key Features

• Exact fit dimensions: The 23-1/4 in diagonal length and 6-point star center hole ensure a correct fit on compatible 46 in decks, avoiding wobble and poor engagement.
• Durable construction: At 0.149 in thickness the blades offer a solid balance of rigidity and resistance to bending under typical lawn conditions.
• Mulching edge design: The 5 in cutting edge length helps lift and recut clippings for improved mulching when the deck and engine speed are appropriate.
• Wide compatibility: Replaces many OEM parts across Cub Cadet, Troy-Bilt, Craftsman, MTD and others, simplifying parts matching for common 46 in models.
• Pre-sharpened and protected: Blades arrive with a painted edge for installer safety; the paint wears off quickly during normal operation.
• Clear fit guidance: The 6-point star center note and warning about S-shape centers help avoid incorrect purchases.

Who It's For

These replacement blades are best for owners of 46 in riding mower decks that use a 6-point star center hole, such as many Cub Cadet XT1/XT2, LTX and ZT series models, and a long list of Troy-Bilt and Craftsman machines. Buyers who need a straightforward, OEM-replacement blade that installs without modification will appreciate the matched mounting holes and standard dimensions.

Users who should look elsewhere include those with decks that use an S-shape center hole or nonstandard mounting patterns, and homeowners seeking a specialized high-lift blade for bagging rather than mulching; confirm the complete model number before purchase to ensure compatibility.

Pros & Cons

Pros

• Good value: customers report solid build quality and a cost-effective replacement for OEM blades.
• Fit and finish: matches 6-point star decks closely, reducing vibration and making installation simple.
• Cut quality: many find the blades cut cleanly and produce good results when mower and deck are tuned.
• Durability: thickness and steel construction stand up to regular use without rapid dulling.

Cons

• Mulching results vary: some users report mixed mulching performance depending on grass conditions and deck setup.
• Not universal: will not fit decks with an S-shape center hole, so fit confirmation is required.

Specifications

Length	23-1/4 in (diagonal)
Width	3 in
Thickness	0.149 in
Center hole	6-point star
Cutting edge length	5 in
Side hole	13/32 in
Compatible deck size	46 in

Our Verdict

The UDC 6-point star mulching blades are a practical, cost-conscious replacement for a wide range of 46 in riding mower decks. They are a smart buy for owners who need correct fitment and a durable edge that cuts cleanly; however, anyone after specialized mulching performance should verify deck setup since results can vary. Overall, these blades offer reliable value and straightforward OEM-style replacement.

Frequently Asked Questions

Will these blades fit my mower?
They fit decks that use a 6-point star center hole and are sized for 46 in decks; confirm your complete model number and center hole type before ordering.

Are the blades ready to use out of the box?
Yes, they arrive pre-sharpened but with a safety paint on the edge that wears off quickly during initial operation.

Can these blades be used for mulching?
The blade edge is designed to assist mulching, but actual mulching performance depends on grass height, engine speed and deck condition; some users report mixed results.