2PCS Seat Adjuster Knob 720-04061 Compatible with MTD, Troy-Bilt, Yard Man, Arnold, Remington, Yard Machines, Craftsman, Columbia, Murray, Robomow, Bolens Lawnmowers

What It Is

This is a set of two replacement seat adjuster knobs (part 720-04061) used to secure and adjust the seat position on riding lawn mowers and tractors. Designed for a wide range of MTD-produced brands, it lets you lock the seat in a comfortable spot without tools.

Fitment & Compatibility

Before buying, confirm your mower uses a threaded seat adjustment rod with a standard 5/16-inch-18 thread pitch. This knob fits most MTD, Troy-Bilt, Yard Man, Arnold, Remington, Yard Machines, Craftsman, Columbia, Murray, Robomow, and Bolens models from the 1990s onward. Check your old knob’s thread diameter and length—this one is about 1.5 inches long. If your seat rod has a different thread (e.g., 1/4-inch or metric), it won’t work. Cross-reference your model number with OEM part 720-04061 or look for a plastic knob with a metal insert.

Key Things to Know

• Quality: Made of plastic with a metal threaded insert; durable for typical use, but overtightening can crack the plastic.
• Installation: Takes 2 minutes—just unscrew the old knob and screw on the new one. No tools required.
• Common gotcha: The knob may feel loose if the seat rod is worn or bent; replace the rod if the knob doesn’t tighten fully.
• Set includes two knobs—useful if you have a dual-adjustment seat or want a spare.

Should You Buy It

If your current seat knob is stripped, cracked, or missing, this is a cheap, direct fix for most MTD-built riding mowers. It’s ideal for DIYers who want a quick, no-hassle replacement without buying a whole seat assembly. Avoid it if your seat rod uses a non-standard thread or if the knob is already loose due to rod damage.