Grasscool LT1045 Replacement Mulching Blades for 46" Deck — 2 Long + 2 Short Stamped Steel Set, 6-Point Star

Grasscool LT1045 replacement mulching blades are a matched set of long and short 3-in-1 mower blades designed to restore cutting performance on 46" decks for Cub Cadet, Toro, and Troy-Bilt tractors.

These Grasscool replacement blades include two long and two short mulching blades engineered for 46-inch decks that use the LT1045/LT1046 blade family. Built with stamped steel, raised air-lift profiles, and the 6-point star center hole, the set is sized to fit many common Cub Cadet, Toro and Troy-Bilt models so you can mulch, bag, or side-discharge clippings without swapping blades.

Which mower models and part numbers are these Grasscool blades compatible with?

These blades match common replacement numbers and fit a range of 46" deck riding tractors. Compatibility covers multiple Cub Cadet, Toro, and Troy-Bilt model lines, but always verify your deck and center hole before ordering.

• Works with Cub Cadet LT1045, LT1046 46" decks and replacement numbers (e.g., 942-0611A, 742-04125 variants).
• Compatible with Toro LX460 series and model references like 13AX60RH744 where a 6-point star center is used.
• Fits Troy-Bilt models such as GTX2446, GT-2246, LTX2146 and similar 46" deck tractors.
• Confirm blade length, width, thickness, air lift, and 5/8" 6-point star center before purchase.

How do the long and short blades differ and why does the set include both?

The set contains two long and two short mulching blades to match factory-equipped cutting patterns: long blades help sweep grass into the discharge path while short blades support mulching action closer to the spindle. Using the correct mix maintains even cutting height and proper airflow under the deck.

• Long blade: 16-1/4" length, 2-1/2" width, 5/32" thick, 7/8" air lift.
• Short blade: 14-7/8" length, 2-1/2" width, 5/32" thick, 1-1/4" air lift.
• Both use a 5/8" 6-point star center hole to match common spindles.
• Stamped air-lift profiles optimize clippings movement for mulching and bagging modes.

Will these mulching blades improve cutting and collection on my 46" deck?

When the correct size and pattern are installed, these mulching blades restore the airflow and cutting geometry the deck was designed for, which helps produce consistently cut clippings and better mulch size. Properly balanced blades also reduce vibration and wear on spindles.

• Restores factory airflow for cleaner cuts and improved bagging or side discharge.
• Mulching edges help reduce clump size for faster decomposition in lawns.
• Stamped lift ribs maintain consistent lift across the deck for even height.
• Painted finish protects during shipping and handles edge installation safely.

Before you install: you do not need to remove the protective paint — it wears off after a few minutes of use. Also double-check that your tractor uses the 46" deck dimensions, the blade lengths listed, and the 5/8" 6-point star center hole; matching these measurements ensures correct fit and safe operation.

Who is this for: lawn owners and small property managers who maintain 46" deck riding tractors from Cub Cadet, Toro, or Troy-Bilt and need a direct-fit set of 3-in-1 mulching blades to restore cutting performance. This set is aimed at DIY maintenance shoppers who can confirm blade length and center-hole type and want a durable stamped-steel replacement that supports mulching, bagging, or side discharge without modifying their mower.