CUB CADET 631-05491B Bagger Vent Wall Assembly 42" 46" 50" 54" Double Baggers

What It Is

This is the vent wall assembly that mounts inside the bagger housing for Cub Cadet 42", 46", 50", and 54" double bagger systems (models 190-438-100, 190-482-100, 190-480-100). It directs airflow and prevents clippings from clogging the bagger’s intake chute.

Fitment & Compatibility

• Deck sizes: 42", 46", 50", 54" (double bagger only; not for single bag or 60" decks).
• OEM part: Cub Cadet genuine part 631-05491B; replaces older 631-05491A.
• Check your bagger model: Fits 190-438-100, 190-482-100, 190-480-100. Look for a white label on the bagger frame or deck bracket.
• Measurements: Approximately 12" x 6" x 2". Verify bolt hole spacing matches your current vent wall (center-to-center about 10").
• What’s not included: Screws, nuts, or gaskets—reuse yours or buy separately if corroded.

Key Things to Know

• Installation difficulty: Easy (15–30 min). Requires removing the bagger hood, swapping the old vent wall, and reattaching. Basic hand tools (socket wrench, Phillips head).
• Common gotcha: The gasket between the vent wall and bagger housing often tears during removal. Order a new gasket (part 731-04772) to prevent air leaks.
• Quality note: OEM plastic is thicker than some aftermarket copies—less prone to cracking from UV or vibration. A few reviews mention warping if bagger is left in direct sun for years.
• Fitment nuance: This vent wall is designed for the upper bagger opening. It does not replace the lower discharge deflector or chute assembly.

Should You Buy It

If your Cub Cadet double bagger is clogging, not filling evenly, or has a cracked/rotted vent wall, this OEM replacement will restore proper airflow and bagging performance. It’s a no-brainer fix for owners of compatible 42–54" baggers—just budget for a new gasket. Avoid it if you need parts for a single bag system or a 60" deck.