Spindle Fit for Troy Bilt Pony Mower - 918-06991 Greaseable Spindle Assembly Fit for MTD Huskee Craftsman T1000 T1200 Deck Mower and Troy Bilt TB42 TB2246 Bronco 42" Tractor, Replace 618-06991

What It Is

This is a greaseable spindle assembly that drives the mower blade on Troy-Bilt Pony, Bronco, Craftsman T1000/T1200, and MTD/Huskee 42-inch deck tractors. It replaces OEM part 918-06991 (and 618-06991) and is designed for residential lawn tractors with a 42-inch stamped steel deck.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch deck (measure blade tip to blade tip). This spindle fits:

• Troy-Bilt: Pony, Bronco, TB42, TB2246
• Craftsman: T1000, T1200 (42" deck models)
• MTD/Huskee: 42" deck tractors
• Other: Any mower using OEM spindle 918-06991 or 618-06991

What to measure/check:

• Spindle housing bolt pattern: 3 holes, 2.5-inch center-to-center
• Spindle shaft diameter: 5/8 inch (round, not hex)
• Deck thickness: Works with stamped steel decks (not fabricated/fabricated decks)
• Not compatible with zero-turn mowers, 46" or 54" decks, or older 38" decks

Cross-reference OEM numbers: 918-06991, 618-06991, 918-06991A, 618-06991A.

Key Things to Know

• Greaseable design – has a zerk fitting for periodic greasing, which extends bearing life vs. sealed spindles.
• Installation difficulty: Moderate – you’ll need a socket set, jack/stands (to lift mower), and a puller if the old spindle is seized. Budget 1–2 hours.
• Common gotcha: The pulley nut is reverse-threaded on some models (turn clockwise to loosen). Check your deck’s pulley nut direction before forcing it.
• Quality: Aftermarket unit with good reviews (4.6 stars, 688 ratings). Bearings are adequate for residential use but not heavy commercial duty.

Should You Buy It

Buy this if your Troy-Bilt Pony, Bronco, or Craftsman T1000/T1200 has a noisy, wobbly, or seized spindle on a 42-inch deck. It’s a direct-fit, cost-effective replacement for a common wear part, and the greaseable design is a genuine improvement over the original sealed spindle. Skip it for commercial mowing or if your deck is larger/smaller than 42 inches – you’ll need a different spindle.