The tachometer assembly used in John Deere 50 Series tractors provides operators with essential engine RPM, PTO RPM, ground speed, and operating hour information needed for efficient field operation. When the tachometer becomes inaccurate, the clock fails, or the display stops functioning properly, operators can lose visibility into critical machine performance data. Our technicians diagnose and repair these units to restore dependable operation and accurate readings in the cab.
This listing is for a repair service only. Your original unit will be repaired and returned.
Available Repair Services
Repairs are performed based on diagnostic findings and may include:
- Tachometer repair and calibration
- Engine RPM display troubleshooting and repair
- PTO RPM display repair
- Ground speed display diagnostics
- Clock repair or replacement
- Mechanical hour meter repair when possible
- Keypad and button repair
- Circuit board (PCB) diagnostics and repair
- Connector and internal wiring repair
- Power supply troubleshooting
- Complete functional testing prior to return shipment
Services listed represent available repairs. Not all services are performed on every unit.
Compatible Equipment
John Deere Tractors:
- 4050
- 4250
- 4450
- 4650
- 4850
- 8450
- 8560
- 8650
- 8760
- 8850
- 8960
How the Repair Process Works
1. Contact Repair Services
Call our repair service team to discuss your issue and complete the required repair form before shipping your unit: 855-334-3400
2. Send in Your Tachometer Assembly
Include the completed repair form or a note with your name, phone number, and contact information inside the package.
Ship to one of the following repair locations:
Ag Express – Repair Services
Des Moines Location 6280 NE 14th St. Des Moines, IA 50313Ag Express – Repair Services
Grand Island Location 3203 Frontage Rd. Grand Island, NE 68803Ag Express – Repair Services
Indiana Location 312 E. Main St. PO Box 28 Sulphur Springs, IN 473883. Diagnosis & Repair
Your John Deere 50 Series tachometer with clock is evaluated, repaired as needed, and fully tested to ensure accurate RPM readings, speed indication, and clock functionality prior to return shipment.
Warranty & Support
- One-year warranty on repairs performed
- Technical support available from experienced repair technicians
- Speak directly with a technician: 855-334-3400
Additional Information
- Typical repair cost depends on the cause of failure and is quoted after diagnosis
- Typical turnaround time is 3 to 5 business days, with seasonal volume and testing affecting time in shop
- This is a repair service and not a replacement or refurbished unit
Disclaimer
This is a third-party electronics repair service and is not affiliated with or endorsed by John Deere. Manufacturer names are used for identification purposes only.
Proudly Repaired in the USA
- Electronic Instrument:
- Instrument Panels
- Use:
- Tractor
