631-05168C Discharge Chute for Cub Cadet Fabricated Decks RZT XT1 XT2 ZT1 ZT2 ZT3 LX SX50 54 CYT5023SE Super Bronco 50XP SZ2454 Z6900 Columbia Mustang XP KH GT50, Replaces 631-05116B 631-05168A

What It Is

This is a replacement discharge chute for Cub Cadet and Columbia zero-turn mowers with fabricated (not stamped) decks. It directs grass clippings out the side during bagger-free mowing and replaces worn or broken OEM chutes 631-05116B and 631-05168A.

Fitment & Compatibility

Before buying, confirm your mower has a fabricated deck (flat steel, not pressed) and that the deck width is 50 or 54 inches. The chute fits these specific models: Cub Cadet RZT, XT1, XT2, ZT1, ZT2, ZT3, LX, SX50, SX54, CYT5023SE, Super Bronco 50XP, SZ2454, Z6900; also Columbia Mustang XP, KH GT50. It will not fit stamped decks or 42/46-inch decks. Measure the existing chute mounting hole spacing—this replacement uses the same three-bolt pattern as the OEM parts.

Key Things to Know

• Installation: Simple bolt-on job (10mm socket). Takes 5–10 minutes. No drilling or modifications needed if replacing the same part.
• Durability: Made of heavy-duty plastic, similar to OEM. Holds up better than thinner aftermarket chutes, but can still crack if you hit immovable objects.
• Common Gotcha: The chute is designed for side discharge only. If you use a mulching plug or bagger, you’ll need to remove it.
• Fit Check: Verify your deck model number (stamped on the deck) matches the list above. The chute is slightly curved—wrong orientation means poor clipping flow.

Should You Buy It

If you need a direct-fit, OEM-style replacement for a Cub Cadet or Columbia fabricated 50/54-inch deck, this is a solid choice at a fair price. It’s not the cheapest aftermarket option, but the fit is reliable and install is painless. Skip it if you have a stamped deck or need a chute for a different brand.