

💡 Power up your gear with confidence—see the switch, trust the switch!
The HD Switch 12V 40A Waterproof Relay is a premium SPDT relay designed for heavy-duty equipment like lawn mowers and tractors. Featuring an integrated LED indicator for easy diagnostics, IP68 waterproof sealing, and silver contacts rated for 40 amps, it ensures reliable performance in harsh environments. Comes with dielectric grease to prevent corrosion and improve terminal connections, making it a smart, durable upgrade for professional-grade machinery.




| ASIN | B08FTK3QD3 |
| Best Sellers Rank | #130,748 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #173 in Electromechanical Relays |
| Brand | HD Switch |
| Coil Resistance | 40 Ohms |
| Coil Voltage | 12 Volts |
| Connector Type | Sealed Connectors |
| Contact Current Rating | 40 Amps |
| Contact Material | Silver |
| Contact Type | Spdt |
| Current Rating | 40 Amps |
| Date First Available | August 13, 2020 |
| Item Weight | 1.44 ounces |
| Manufacturer | HD Switch |
| Maximum Switching Current | 40 Amps |
| Minimum Switching Voltage | 12 Volts |
| Mounting Type | Panel Mount |
| Operation Mode | Automatic |
| Package Dimensions | 5.55 x 1.89 x 1.57 inches |
| Specification Met | Ip68 |
| UPC | 695783828431 |
| Wattage | 36 watts |
M**E
Perfect fit, new part.
Fit perfect, super fast shipped, came with elecro grease already on connectors.
W**R
Perfect for 3032E john Deere relays.
Perfect for 3032E john Deere relays.
T**M
LED light not working
LED light does not come on when relay is working unfortunately, which is why I purchased
P**E
HD 40A Bosch style 5 prong relay with indicator light
These are great as they have an indicator light on them to know if the relay is on. Have used them for troubleshooting issues to as it gives you a quick visual if the relay is getting its signal.
B**.
Works as it should
on time works as it should
B**S
Easy to install
Works like it should and was easy to install
Trustpilot
2 days ago
4 days ago