20 AMP OEM Upgrade Clutch PTO Switch for John Deere L120 L130 145 155C 190C LA130 LA140 L2048 L2548 D140 D150 D155 D170 GY20878 5219-20 5219-72 5219-113 Clutch

What It Is

This is a 20-amp PTO (power take-off) switch that engages and disengages the electric clutch on your lawn mower’s cutting blades. It’s designed as an OEM upgrade replacement for a wide range of John Deere lawn tractors and zero-turn models, including the L120, L130, and many 100-series and D-series machines.

Fitment & Compatibility

Before buying, confirm your mower model and year. This switch fits John Deere L120, L130, 145, 155C, 190C, LA130, LA140, L2048, L2548, D140, D150, D155, and D170. It replaces OEM part numbers GY20878, 5219-20, 5219-72, and 5219-113. Measure your existing switch’s blade terminal spacing and overall length—this switch is a direct drop-in for the original, but verify the connector shape matches your wiring harness. It is an aftermarket upgrade (not OEM John Deere), so check that your mower uses a standard 20-amp PTO circuit. If your mower has a 15-amp system, do not use this switch without verifying compatibility.

Key Things to Know

• Quality: Rated 4.7/5 stars from 117 reviews, indicating reliable construction and consistent performance. Users note it feels sturdier than the original switch.
• Installation difficulty: Easy—disconnect battery negative, unplug old switch, remove mounting nut, install new switch, reconnect. Takes under 15 minutes with basic hand tools.
• Common gotcha: Some users report the switch’s plastic housing is slightly larger than OEM, requiring a gentle push to fit into the dash hole. Do not force it—file the opening slightly if needed.
• 20-amp rating: This is an upgrade from many OEM 15-amp switches. It handles higher current draw from aftermarket clutches or heavy-duty cutting, reducing the risk of switch failure under load.

Should You Buy It

If you need a reliable, budget-friendly replacement for a failed PTO switch on a compatible John Deere model, this is a solid choice. It’s especially good if you’ve upgraded your clutch or blades and want a higher amp rating for durability. Avoid if you require an exact OEM match—this is an aftermarket part with slightly different dimensions. For most DIY owners, it’s a no-brainer at $14.99.