42 Inch Mower Deck Spindle Assembly Parts Fits Craftsman T1000 T1100 T1200 T1400 T1800 Troy Bilt Pony TB42 TB2246 Huskee LT4200 Mower Replaces OEM 918-06991 618-06991 2 Pack

What It Is

This is a 42-inch mower deck spindle assembly (2-pack) that drives the blades on select Craftsman, Troy-Bilt, and Huskee lawn tractors. It replaces worn or failing spindles that cause blade wobble, vibration, or uneven cutting.

Fitment & Compatibility

Before buying, verify:

• Deck size: Only for 42-inch decks (not 46" or 54").
• Model numbers: Fits Craftsman T1000, T1100, T1200, T1400, T1800; Troy-Bilt Pony, TB42, TB2246; Huskee LT4200. Check your mower’s model plate under the seat or on the frame.
• OEM numbers: Replaces 918-06991 and 618-06991. If your spindle has a different OEM number, measure the spindle shaft diameter (typically 1 inch) and bolt pattern (usually 4-bolt, 3-inch center-to-center). If yours is different, this won’t fit.
• Pack quantity: Two spindles per pack—ensure you need both (most 42" decks use three, so you’ll need a second pack or a single).

Key Things to Know

• Quality: Aftermarket but well-reviewed (4.8 stars). Includes bearings and shaft—no need to buy additional parts. Some users note grease fittings are pre-installed, but check for smooth rotation before mounting.
• Installation: Moderate difficulty. You’ll need a socket set, a jack to lift the deck, and possibly a puller for stubborn old spindles. Allow 1–2 hours for a full set.
• Common gotcha: The pulleys from your old spindles may be reused, but inspect them for wear. Also, check deck belt alignment after installation—misaligned spindles can cause belt throw.
• Warranty: Typically 90 days to 1 year from the seller; confirm before buying.

Should You Buy It

If you have one of the listed 42-inch deck tractors with a failed spindle and want a cost-effective, two-pack replacement with solid reviews, this is a good buy. It’s not for oddball or metric spindles, and if you need a single, you’ll have a spare. For OEM purists, stick with factory parts.