Lawn Mower Side Discharge Chute 731-07131 Compatible with Craftsman MTD Troy-Bilt TB130, TB200 TB220, TB240, TB340, TB360, TB370, TB380ES Lawn Mower

What It Is

This is a replacement side discharge chute for walk-behind lawn mowers, designed to direct grass clippings out the right side of the deck. It’s meant for Craftsman, MTD, and Troy-Bilt mowers with 21-22 inch cutting decks, specifically the TB130 through TB380ES series.

Fitment & Compatibility

• Deck size: Fits 21-inch and 22-inch decks only. Measure your deck width before ordering.
• Model numbers: Compatible with Troy-Bilt TB130, TB200, TB220, TB240, TB340, TB360, TB370, TB380ES. Also fits select Craftsman and MTD mowers with the same deck design.
• OEM vs aftermarket: This is an aftermarket part (OEM number 731-07131). It may have slight cosmetic differences from the original but should mount using the same two screws or clips.
• Mounting points: Check that your mower has two pre-drilled holes or slots on the deck’s right side. Some older models use a single pin instead.
• Quick check: If your original chute is broken or missing, match the shape of the mounting flange (curved vs flat) to this part.

Key Things to Know

• Installation difficulty: Easy, 5-minute job – just align the chute with the deck holes and secure with two screws or clips. No tools needed if your mower uses thumb screws.
• Quality: Plastic is sturdy but can crack if overtightened. Hand-tighten only.
• Common gotcha: Some models require removing the blade or belt guard to access the mounting holes. Check your mower’s manual.
• Fit note: If your deck has a mulch plug or bagger adapter installed, you’ll need to remove it before using this chute.

Should You Buy It

If your existing chute is cracked, missing, or you’re switching from mulching to side discharge, this is a reliable, low-cost fix. It’s ideal for homeowners with a compatible Troy-Bilt, Craftsman, or MTD mower who want a quick, no-hassle replacement. Skip it if your deck size is different or if you need a chute for rear-bagging models.