46 Inch Mower Deck Kit – (3) 618-0660 918-0660 Spindles, (1) 742-04125 (1) 742-04124 Blades, (1) 754-04153 Be lt, Fits Cub Cadet LT1045 LT1046 i1046 Troy Bilt GT2246 GTX2446

What It Is

This is a complete 46-inch mower deck service kit containing three spindle assemblies (part #618-0660 / 918-0660), two blades (742-04125 and 742-04124), and one drive belt (754-04153). It’s designed for a single maintenance overhaul on 46-inch decks used by Cub Cadet LT1045, LT1046, i1046, Troy-Bilt GT2246, and GTX2446 lawn tractors.

Fitment & Compatibility

Before buying, confirm your mower deck measures exactly 46 inches cutting width. This kit fits Cub Cadet LT1045, LT1046, and i1046 models, plus Troy-Bilt GT2246 and GTX2446. The spindles are OEM-style replacements (not genuine Cub Cadet parts) but match the original bolt pattern and shaft dimensions. The blades are 18.5 inches long with a 1-inch center hole and 5/8-inch spindle hole. The belt is 1/2-inch wide by 120 inches long. Check your deck’s spindle housing for rust or damage—if the housing is cracked, the new spindles won’t fix it. Verify your spindle pulley keyway and bearing size match (standard 1-inch shaft). This kit will not fit decks smaller than 46 inches or models with different spindle spacing.

Key Things to Know

• Quality: Aftermarket spindles are generally reliable but may use lower-grade bearings than OEM. Expect 2–3 seasons of normal residential use before needing replacement.
• Installation difficulty: Moderate. You’ll need a jack or blocks to lift the mower, a socket set, and a torque wrench. Spindle bolts should be torqued to 30–40 ft-lbs. Belt routing is straightforward but refer to your deck diagram.
• Common gotchas: The blades come unsharpened—sharpen them before first use. The spindle assembly includes the housing, bearings, and pulley; if your old pulley is worn, reuse it only if it’s in good condition. Check spindle shaft straightness; a bent shaft will cause vibration.
• Warranty: Typically 90-day limited against defects. Verify with seller before purchase.

Should You Buy It

If you own one of the listed Cub Cadet or Troy-Bilt tractors and need to replace worn spindles, blades, and belt in one shot, this kit saves time and money versus buying each part separately. It’s a good value for DIY homeowners who want a complete deck refresh without hunting for individual OEM parts. Not for commercial use or if you need genuine Cub Cadet warranty coverage—those cost significantly more.