Description

Ever had your tractor’s safety systems kick in when you leaned forward to check something or shifted to get a better view? That’s your operator presence switch doing its job—keeping you safe by monitoring that you’re in the seat and ready to operate. When this switch starts acting up, safety systems like automatic PTO disengagement when operator leaves seat stop working properly, which can create serious safety concerns around your equipment.

What You’re Getting

Reliable seat presence detection that works with your tractor’s safety systems
Built to handle the constant pressure and movement of daily farm work
Direct replacement for worn switches on Grammer MSG83, MSG85, and MSG93 seats
Weather-sealed construction that keeps moisture and dust from causing failures

Built for Real Farm Work

This switch is designed for the popular Grammer seat models found in tractors across many brands. These seats are workhorses that see long days during planting, harvest, and everything in between. The operator presence switch ensures safety systems work as lifesavers that prevent runaway tractors and crushing accidents by confirming you’re in position before allowing certain operations to proceed.

Made to Last

Seat switches take a beating from constant use and the vibration of field work. This replacement features sealed construction and robust internal contacts that maintain reliable operation through thousands of cycles, ensuring your safety systems stay active season after season.

Good to Know

Installation involves disconnecting the old switch’s wiring harness and connecting the new one—usually accessible from under the seat cushion. Never bypass a faulty safety switch and while you’re replacing this one, it’s a good time to test your PTO switch and parking brake switch too. These safety systems work together to protect you and anyone around your equipment.