4-Pack John Deere 12V Relays GY20437
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| John Deere D105, D110, D125, D130, D140, D155, D160, D170, L100-L118, X100-series and many related lawn tractors using 12V relay GY20437. |
Product Overview
An electrical circuit that works intermittently, only after tapping the relay, or not at all despite a good fuse and switch can point to worn relay contacts.
This replacement 12-volt relay restores the switching function on compatible John Deere lawn equipment.
Key Features & Performance
- 12-volt electrical relay
- John Deere part number GY20437
- Used to switch higher-current circuits from low-current controls
- Broad Deere lawn-equipment compatibility—verify original relay layout
Replaces / Cross-References
- GY20437
What Is Included
4 replacement components as stated in the product title.
Fitment Notes
Match the original part number, machine or vehicle model, mounting points, connector or hose/fitting style, and any serial-number restrictions before ordering. When a manufacturer uses multiple revisions within the same model family, the equipment serial number and original component should be the final fitment check.
Frequently Asked Questions
Is this a genuine OEM part?
No, unless the product page specifically states otherwise. This listing is for a replacement, accessory, upgrade or repair component as described above. OE and interchange numbers are provided for identification and fitment reference.
How should I verify fitment before ordering?
Compare the original part number, machine or vehicle model, mounting arrangement and electrical, fuel, coolant or hydraulic connections with the information above. For equipment parts, also verify the machine serial number whenever the manufacturer catalog uses serial breaks.
Part Summary
Keywords: 12V electrical relay, John Deere D105, D110, D125, D130, D140, D155, D160, D170, L100-L118, X100-series and many related lawn tractors using 12V relay GY20437., GY20437.