731-07131 lawn mower side discharge chute, compatible with Cub Cad, Murray, Craftsman, MTD hand push lawn mowers, suitable for Troy Bilt models TB110, TB130, TB200, TB230, TB240 lawn mower replacement

What It Is

The 731-07131 is a side discharge chute for walk-behind push mowers. It directs grass clippings out the side deck opening instead of mulching or bagging, and fits select Cub Cadet, Murray, Craftsman, and MTD mowers, plus Troy-Bilt models TB110, TB130, TB200, TB230, and TB240.

Fitment & Compatibility

• Deck size: This chute fits mower decks with a standard side discharge opening—typically 21-inch or 22-inch decks, but measure your deck’s chute mounting slot width (approx. 5–6 inches wide).
• Mounting: Uses a single pivot pin or bolt at the rear of the chute; check that your deck has a corresponding hole or bracket. Troy-Bilt TB series usually have a spring-loaded latch; others use a simple hinge pin.
• OEM vs aftermarket: This is an aftermarket replacement. OEM part numbers vary by brand (e.g., MTD 731-07131, Cub Cadet 731-07131). Confirm your mower’s model number on the deck or under the seat.
• What to measure: Chute length (about 8–10 inches) and the width of the discharge opening on your deck—most are standard, but older or off-brand decks may differ.

Key Things to Know

• Quality concerns: Some users report thin plastic that cracks after a season. Inspect for stress points at the hinge area.
• Installation: Usually tool-free—snaps on via a pin or latch. If your deck has a broken hinge bracket, the chute won’t stay on.
• Common gotcha: The chute may not lock securely if your mower’s spring or latch is worn. Check that the spring-loaded arm (if present) engages fully.
• Fit check: If you have a non-Troy-Bilt model (e.g., older Craftsman), try it first—some decks have slightly different pivot pin locations.

Should You Buy It

If you need a cheap, quick fix for a missing or cracked side chute on a compatible push mower, this will work for light use. But if your deck’s mounting bracket is damaged or you mow thick, wet grass, consider a sturdier OEM chute—this one may not hold up long-term.