CUB CADET 19A30055100 42" Mulch Kit XT1-LT42E

What It Is

The CUB CADET 19A30055100 42" Mulch Kit converts your XT1-LT42E lawn tractor from side-discharge or bagging to mulching. It re-cuts clippings into fine particles that decompose quickly, returning nutrients to the lawn. Designed for use on standard residential turf, not for tall, wet, or overgrown grass.

Fitment & Compatibility

• Deck size: 42-inch cutting deck only. Do not use on 46" or 54" decks.
• Models: Fits Cub Cadet XT1-LT42E (electric start) and XT1-LT42 (manual start) models. Also compatible with some XT2 and XT3 series with a 42" deck—verify your deck part number.
• OEM vs aftermarket: This is a genuine Cub Cadet OEM kit. Aftermarket kits (e.g., from Rotary, MaxPower) may fit but often require additional trimming or hardware.
• What to check: Measure your deck’s spindle-to-spindle width (should be ~42"). Confirm your mower deck has two side-discharge openings (some single-opening decks need a different kit). Inspect existing blade bolts—the kit includes new bolts but not blades; you’ll need standard 42" mulching blades (sold separately).

Key Things to Know

• Installation difficulty: Moderate. Requires removing the side-discharge chute, installing a block-off plate, and swapping blades. Plan 30–45 minutes. Basic hand tools (socket wrench, torque wrench) needed.
• Blades not included: The kit comes with a mulching plug, block-off plate, and hardware, but not the high-lift mulching blades. You must buy Cub Cadet 42" mulching blades (part 942-04273 or 942-04274) separately for proper performance.
• Common gotcha: The block-off plate can vibrate loose if not torqued to spec (20–25 ft-lbs). Check after the first hour of use. Also, the kit reduces cutting height by about 1/4" due to the plug design—adjust your deck height accordingly.
• Grass condition matters: Works best on dry grass under 3" tall. Wet or thick grass will clump and leave visible clippings. You may need to mow more frequently (every 4–5 days) during peak growth.

Should You Buy It

If you want a clean, fine-mulch finish without leaving clumps or windrows, and you mow regularly on dry turf, this kit is a solid OEM upgrade. It’s not for bagging or side-discharge, and you’ll need to buy separate blades. Best for owners who value lawn health and a tidy appearance over speed.