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⚡ Start Strong, Last Long – The Solenoid Upgrade You Can't Miss!
The Upgrade Max 300A Peak Instant Current 12V Solenoid is a heavy-duty, nickel-plated starter solenoid designed for golf carts, winches, and marine applications. Featuring a robust 300A peak current capacity, OEM-compatible mounting, and a corrosion-resistant nickel cover, it ensures reliable engine starts and long-term durability. Built with high-temp copper coil wire and normally open contacts, it delivers efficient, automatic starter engagement with a recommended continuous current under 150A and a 5-minute hold time for optimal performance.




| ASIN | B0B93J9ZX2 |
| Best Sellers Rank | #6,883 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Starter Solenoids |
| Brand | MaySpare |
| Brand Name | MaySpare |
| Coil Resistance | 14 Ohms |
| Coil Voltage | 12 Volts (DC) |
| Connector Type | Through Hole |
| Contact Current Rating | 300 Amps |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Current Rating | 300 Amps |
| Customer Reviews | 4.3 out of 5 stars 302 Reviews |
| Item Type Name | Solenoid |
| Manufacturer | May Spare Parts |
| Minimum Switching Voltage | 12 Volts (DC) |
| Model | XR-2061 |
| Mounting Type | Screw Mount |
| Operating Time | 50 Minutes |
| Operation Mode | Automatic |
| Part Number | US-AUTO4T |
| Specification Met | Oem, Environmental Compliance |
| Unit Count | 1.0 Count |
| Warranty Description | 1year |
| Wattage | 10.2 watts |
L**E
Works better than the OEM solenoid.
Replaced the OEM part and the engine starts easier now. Mounting holes match OEM starter for easy installation. OEM part is cheaply made and the engine was difficult to start. This one is a true starter solenoid and should last a long time.
A**R
Continuous duty solenoid eval
Great item!
K**Y
Handles the high amp draw of a OLD dynahoe
I bought this to use on an old dynahoe. Works great
M**K
ground the other small wire
worked as it should,the two small wires one is what i call the trigger wire and the other Must be grounded.
D**.
VTX1800
Used to replace the oe solenoid for my vtx1800. That bike has eaten 5 in 15 years with the genuine Honda part lasting a few years vs the 1-2year Amazon specials. This style fortunately uses a cable ground, so your kickstand and neutral safeties still function. Fits neatly in the oe location, and handles the in-rush current like a champ. Faster cranks than the tiny solenoid could handle. Time will tell
J**K
Relay
Works good
V**I
Not Continuous Duty !!!!!!!!
I can’t tell you how this product performed because I was not dumb enough to install a starter relay in a configuration that calls for a continuous use relay. I just bought a trailer and the second time I used it, the relay that was installed melted and stuck in the on position. Obviously, the genius that installed the last one fell for the same type of relay. This item has been misrepresented and should not be carried by Amazon. Amazon should not do business with any company that is so willing to mislead their customers.
M**O
Generac 40kw perfect replacement
Was an exact match for my generac 40kw liquid cooled unit - doesn’t come with wiring instructions tho, just an fyi there
Trustpilot
2 weeks ago
2 weeks ago