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⚡ Heavy-Duty Solenoid Power That Keeps You Moving Forward
The MaySpare Max Transient 200A Trombetta 12V Solenoid Relay is a robust, 3-terminal heavy-duty starter solenoid designed for winch and marine use. Featuring a 200 amp max current rating, copper contacts, and a corrosion-resistant plated steel housing, it delivers reliable performance under demanding conditions. Its sealed design protects against environmental damage, while the 180℃ rated coil ensures durability. Ideal for professionals needing a dependable, OEM-spec replacement solenoid with easy installation and proven longevity.
| ASIN | B0797WZBD9 |
| Best Sellers Rank | #5,690 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Starter Solenoids |
| Brand | MaySpare |
| Brand Name | MaySpare |
| Coil Voltage | 12 volts |
| Connector Type | Screw |
| Contact Current Rating | 200 A |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Current Rating | 200 A |
| Customer Reviews | 4.4 out of 5 stars 1,073 Reviews |
| Manufacturer | May Spare Parts |
| Maximum Switching Current | 5 A |
| Maximum Switching Voltage | 12 volts |
| Minimum Switching Voltage | 12 volts_of_direct_current |
| Model | US-AUTO3T |
| Mounting Type | Pole |
| Number of Items | 1 |
| Number of Terminals | 3 |
| Operating Time | 5 minutes |
| Operation Mode | Automatic |
| Part Interchange Info | 15-123, SAS4208, SAW4226, 15-139, 15-247,118665,15-123 |
| Part Number | US-AUTO3T |
| Specification Met | OEM |
| UPC | 729043161300 |
| Unit Count | 1 Count |
| Wattage | 10.28 watts |
J**.
Would buy in a heartbeat
Fixed an excavator with a bad solenoid with this one. Been used for a year under constant use and still working just fine. Seems to be well worth the little money this one costs compared to the OEM.
M**R
Saved starting problem
Worked great. All hardware came with it. Installed on 15hp Kohler engin.
S**R
Works for 94 7.3 idi
Working great on my 1994 F350 with 7.3 IDI
V**B
This is original ==DOES have long-terminals !!!
This solenoid Relay DOES NOT have long-terminals for attaching multiple battery leads ..!.. This causes one to install battery leads without using locking rings ..!.. This creates what I refer to as improper installation..
B**5
Universal fit and compatibility
Didn’t come with curved base but I just adjusted with pliers. Fit perfectly and restored dump function to my truck. Works genetically for many of the hydraulic pumps out there.
P**T
Doesn't last long
Only lasted a year before it bit the dust. Light duty use on riding lawnmower.
O**S
Snow and ice management llc
What a freat buy for plowing contractors with Curtis. Fisher. Western plows systems. Its really hard to beat up when plowing lots and roadwork plowing and maintenance threwout the storms. I purchased a few for back up. Dont use starter units it needs to be continuous soliniod type. Awesome product great price.
J**S
They come in handy
Yes, I do use it
T**M
look well made
Work as they should. Wired up a pair to repair failed solenoids on my older 3 wire motor RV slide control system. Nice that control grounds through body so no additional ground wire needed.
N**Y
Relay/solenoid for camper power
Works well and as expected
B**D
Works well, little loud when clicking on.
I used this relay to connect an auxiliary battery on my truck. Things to note about it: it needs to be grounded to work. Current rating is only after it is engaged. Turn on amperage is significantly lower and can cause fusing of the relay. Make sure heavy loads are off until it is engaged. When powered off it the circuit is disconnected position and has no draw. The relay uses power to keep it connected so it will drain your battery overtime if left connected when not charging. Overall a decent product little loud when turning on and off with the ignition switch having it bolted under to my firewall under the hood.
J**S
Great replacement
Works perfect not exact fit for omc oem solenoid have to drill new mounting holes
V**R
It works well thus far!
My Yanmar 40hp inboard diesel was giving me starter fits. After replacing the starter and solenoid, still did not work - just "click". Then I removed the starter relay and discovered it was rusted out. Vancouver Outboard quoted a new starter relay switch at close to $400 and rush shipping charges. I paid $30 for this part and it can handle 200 amps. Works like a top so far.
Trustpilot
4 days ago
5 days ago