13238 – Rotary Mower Blade, 23-1/4 Inch X-Star (Replaces MTD 942-04290) The Rotary 13238 is a high-quality aftermarket mower blade, designed to replace MTD OEM part number 942-04290. Featuring a 23-1/4 inch cutting length and X-Star center hole pattern, this blade is engineered to deliver clean, consistent cutting performance on compatible MTD, Cub Cadet, Troy-Bilt, and related lawn mowers. Manufactured from heat-treated, high-strength steel, the Rotary 13238 blade is precision-balanced to reduce vibration and ensure smooth operation. It is designed to meet or exceed OEM performance standards, making it a dependable replacement for routine mower maintenance and blade replacement. Product Details Part Number: 13238 Brand: Rotary Part Type: Rotary Mower Blade Blade Length: 23-1/4 inches Center Hole: X-Star Replaces OEM: MTD 942-04290 System: Mower deck / cutting system Function: Grass cutting Material: Heat-treated, high-strength steel Condition: New aftermarket replacement Function Provides clean, even grass cutting Maintains proper blade balance and deck airflow Supports smooth mower operation with reduced vibration Compatible With Equipment The Rotary 13238 Mower Blade replaces MTD 942-04290 and is compatible with select MTD-family lawn mowers, including: MTD Cub Cadet Troy-Bilt Yard Machines Yard-Man (Compatibility depends on deck size and X-Star blade mounting configuration.) How It’s Used This blade mounts to the blade spindle beneath the mower deck using an X-Star center pattern. When installed correctly, it rotates to cut grass evenly across the full cutting width. Proper blade orientation and secure mounting are essential for safe operation and optimal cutting performance. Suggested Maintenance Inspect the blade regularly for cracks, bends, or excessive wear Sharpen cutting edges to maintain clean cuts Replace the blade if damaged or out of balance Clean grass buildup from the blade and deck to maintain airflow The Rotary 13238 23-1/4 Inch X-Star Mower Blade, replacing MTD 942-04290, is a reliable solution for maintaining cutting performan