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💡 Upgrade your gear with the relay that works as hard as you do!
The HD Switch 12V 40A Waterproof Relay is a rugged, IP68-certified SPDT relay designed for heavy-duty equipment like lawn mowers and tractors. Featuring an integrated LED indicator for real-time diagnostics and including dielectric grease to prevent corrosion, it ensures reliable performance and easy maintenance. This relay is a direct replacement for popular Hella models, delivering superior durability and hassle-free installation.
| ASIN | B08FTLBJYH |
| Best Sellers Rank | #218,261 in Automotive ( See Top 100 in Automotive ) #46 in Automotive Replacement Relay Control Module Relays |
| Brand Name | HD Switch |
| Coil Resistance | 40 Ohms |
| Coil Voltage | 12 Volts |
| Connector Type | Solder |
| Contact Current Rating | 40 Amps |
| Contact Type | Spdt |
| Current Rating | 40 Amps |
| Customer Reviews | 4.4 4.4 out of 5 stars (77) |
| Manufacturer | HD Switch |
| Maximum Switching Current | 40 Amps |
| Minimum Switching Voltage | 12 Volts |
| Model | 4rd-931-680-01 |
| Number of Terminals | 2 |
| Operation Mode | Manual |
| Specification Met | Ip68 |
| Wattage | 3.6 watts |
J**V
green means good
Great for my toro z4220. I Liked how the light was light when it had power. Easy to tell when it quit.
S**E
relay repair
Fixed the tailgate lift on my truck. Awesome
L**A
Fit my Case 70XT! Light on the relay is handy!
Fit on my Case 70XT skid steer…. It’s handy having the light on the relay so you know if it’s working or not!
Y**S
Didn’t make a difference
Maybe I got a faulty one. But I just thought it really didn’t work, checked the ground and everything was still getting power but got nothing from this. I returned it with no problems.
P**A
Good Product
Very Satisfied
J**H
Works great and love the light indicator!
Really nice to know when it is working with the light for my glow plug pre-heater circuit on my diesel Toro zero-turn now!
P**D
Working well
Replacement
B**R
HD Switch 12V 40A Upgrade Waterproof Relay Replaces Hella 4RD 931 680-01, 4RD93168001, 007903001
This is not similar to the original found on my John Deere Gator. The positive and negative terminals were reversed and therefore unusable. Had to return it.
S**N
As advertised.
J**N
Not a reliable product
Trustpilot
4 days ago
3 days ago