Oil Pressure Switch AM100856 for John Deere Turf 7400 7500 7700 8500 8700 8800

Oil Pressure Switch AM100856 for John Deere Turf 7400 7500 7700 8500 8700 8800

This oil pressure switch AM100856 for John Deere turf equipment monitors engine oil pressure and triggers the warning system when pressure drops too low. It is a replacement part cross-referenced to John Deere part number AM100856 for use on several mid-size turf tractors and mowers.

Overview

This oil pressure switch AM100856 for John Deere Turf 7400, 7500, 7700, 8500, 8700, and 8800 models is a vital engine protection component. It senses oil pressure and sends a signal to the operator warning system, helping prevent engine damage from low oil pressure. The switch is built as a direct replacement for the original John Deere AM100856 part.

Built For Performance

• Direct replacement for John Deere part number AM100856
• Pressure-activated electrical switch for reliable warning light operation
• Threaded mounting for secure fitment into the engine block
• Sealed housing protects against oil, moisture, and vibration
• Designed to match the original switch's pressure set point for these engines

Fits These Machines

• for John Deere Turf 7400
• for John Deere Turf 7500
• for John Deere Turf 7700
• for John Deere Turf 8500
• for John Deere Turf 8700
• for John Deere Turf 8800

On-The-Job Use

• Replaces a faulty switch that causes the oil pressure light to stay on or flicker
• Used during engine rebuilds or when troubleshooting low-pressure warning issues
• Ideal for turf maintenance fleets to keep mowers and tractors running safely
• Works with the existing dashboard indicator to alert the operator immediately

Specs At A Glance

Good To Know

Q: What does the AM100856 part number mean? A: AM100856 is the original John Deere reference number for this switch. This replacement part is designed to match the same specifications and function as that original component.

Q: How do I know if my switch needs replacing? A: If the oil pressure warning light does not come on when the key is turned to the on position, or if it stays on after starting with proper oil levels, the switch may be faulty. Replacing it restores accurate oil pressure monitoring.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.