Stens Seat Switch Replacement for John Deere LT133/LT155 — Gray N.O. Direct-Fit 2-Terminal

The Stens 430-239 seat switch is a direct-fit, normally-open replacement switch for select John Deere lawn tractors that restores operator-sensing safety functions without modification.

Designed as an OEM/aftermarket substitute, this gray Stens seat switch replaces John Deere part AM124426 (Delta 6500-02) and fits LT133 models manufactured before serial number 125000 as well as LT155 tractors. It provides the basic two-position, two-terminal normally-open function you need to reconnect the safety interlock between the seat and the machine’s electrical system. The part ships ready to install with no assembly required, reducing downtime for routine maintenance or part swaps.

Will this seat switch fit my John Deere tractor?

If your tractor is a John Deere LT133 built prior to serial number 125000 or an LT155, the Stens 430-239 is made to fit without modification. It is intended to replace John Deere part AM124426 (also referenced as Delta 6500-02), so cross-referencing those numbers will confirm compatibility. Always check your machine’s model and serial number before purchasing to ensure the correct match.

• Direct replacement for John Deere AM124426 / Delta 6500-02
• Fits LT133 before serial #125000 and LT155 models
• Gray finish matches original equipment appearance

How does the Stens 430-239 seat switch work?

This switch is a normally-open (N.O.) electrical contact that closes when weight is applied to the seat, completing the safety circuit used by the tractor. It has two terminals and two positions, providing a simple on/off detection for operator presence. The straightforward design minimizes wiring complexity and makes the switch easy to test with a basic multimeter.

• Normally-open contact closes under seat pressure
• Two terminals for simple connection to existing harness
• Two-position operation for clear open/closed signaling

What should I expect when installing this replacement part?

Installation is quick because the Stens 430-239 comes ready to mount with no assembly required. You’ll typically disconnect the battery, remove the seat or access panel, unplug the old switch, and connect the new unit to the factory wiring harness. After installation, test the switch operation before full use to verify the safety circuit responds correctly.

• No assembly required—ships ready to mount
• Plug-and-play replacement for the factory connector in most cases
• Simple bench or in-vehicle continuity check recommended after install

How durable and reliable is this aftermarket seat switch?

Built as a direct-fit aftermarket component, the Stens 430-239 follows the basic form and function of the original equipment part and is intended for routine lawn tractor use. While not a branded OEM John Deere unit, its design matches the electrical characteristics you need for safe operation. Regular inspection and replacing worn switches when they begin to fail will keep your tractor’s interlock system dependable.

• Aftermarket design matching OEM electrical function
• Gray housing for visual parity with original parts
• Replacement part intended for regular residential/landscaping use

Who is this for: The Stens 430-239 seat switch is aimed at owners and technicians of mid-sized residential John Deere lawn tractors (LT133 pre-serial #125000 and LT155) who need a straightforward, no-assembly replacement for a failing seat interlock. It’s suitable for DIY maintenance and professional service shops that require a compatible, ready-to-install switch to restore operator-sensing safety circuits.