LawnMaster OcuMow Magnetic Strips – 523113

What It Is

The LawnMaster OcuMow Magnetic Strips (part 523113) are replacement magnetic sensor strips for the OcuMow safety system on select LawnMaster riding mowers. They detect obstacles and trigger automatic shutoff to prevent blade contact.

Fitment & Compatibility

• Deck size: Designed for 46-inch and 54-inch LawnMaster OcuMow mower decks. Check your deck measurement (cutting width) to confirm.
• Model fit: Compatible with LawnMaster models that include the OcuMow system (e.g., LMR46, LMR54 series). Verify your mower’s model number on the underside of the seat or frame.
• OEM only: This is a genuine LawnMaster part (523113). Aftermarket alternatives are rare and may not calibrate correctly with the OcuMow sensor.
• Measurement: Each strip is roughly 4–6 inches long. Ensure your existing strip is the same length (measure before removing). The mounting holes must align with your deck’s bracket.

Key Things to Know

• Installation difficulty: Moderate. Requires removing the old strip (usually held by two screws), cleaning the mounting surface, and reconnecting the wiring harness. A screwdriver and basic hand tools are needed.
• Common gotcha: The strips are polarity-sensitive. Connect the wires exactly as the old one was (color-to-color). Reversing them can cause sensor failure or false triggers.
• Quality: OEM strips are durable but can wear over time from debris impact. The 4.2 rating reflects occasional reports of premature failure if the mower is used on very rough terrain.
• Testing after install: After replacement, run the mower in a clear area and manually trigger the sensor (e.g., with a plastic object) to confirm it stops the blades. If it doesn’t, check wiring connections.

Should You Buy It

Buy this if your LawnMaster OcuMow mower’s safety sensor strip is damaged, missing, or no longer triggering blade stop. It’s the correct OEM fix for restoring the safety system on 46" or 54" decks. Skip if your mower doesn’t have OcuMow or if you’re comfortable using an aftermarket alternative (rarely available). For $29.99, it’s a reasonable price for a critical safety component.