Description
Idle On! PLUS
Idle Shutdown Bypass + High Idle Control
Never let Ford’s 30-minute idle shutdown interrupt your work again.
Idle On! PLUS gives you complete control over your Ford Super Duty while it’s on the job.
Not only does Idle On! PLUS eliminate Ford’s factory 30-minute idle shutdown, it also adds selectable High Idle capability to help support increased electrical demands and work equipment operation.
Designed for 2023 and newer Ford Super Duty F-250 through F-600 trucks, Idle On! PLUS uses Ford’s factory SEIC (Stationary Elevated Idle Control) system to provide a simple, reliable, and non-invasive installation.
With the parking brake engaged, simply activate your switch during the first 20 minutes of idling to enter High Idle mode.
High Idle RPM:
Diesel: Approximately 1160–1200 RPM
Gas: Approximately 960–980 RPM
Whether you’re powering emergency equipment, charging batteries, running inverters, operating hydraulic systems, or simply wanting increased idle performance, Idle On! PLUS helps your truck work harder for you.
Installation requires no cutting or splicing of factory wiring, no computer programming, and no permanent modifications. The system is fully removable and designed to work with your truck’s existing systems while helping preserve your factory warranty.
Features
• Eliminates Ford’s factory 30-minute idle shutdown
• Adds selectable High Idle capability
• Compatible with 2023 and newer Ford Super Duty F-250 through F-600
• Works with both gas and diesel engines
• Uses the factory Ford SEIC connector
• No cutting or splicing factory wiring
• No computer programming required
• Easily removable if desired
• Designed to be warranty friendly
• Available in Plug-and-Play and You-Wire versions
• Works with or without factory upfitter switches
High Idle Benefits
• Increased alternator output
• Improved battery charging
• Better support for electrical accessories
• Enhanced operation of work and emergency equipment
• Increased driver comfort during extended idle periods
Perfect For
• Fire and EMS
• Law Enforcement
• Utility Companies
• Construction
• Public Works
• K9 Units
• Tow Trucks
• Snow Removal
• Mobile Command Vehicles
• Oil and Gas
• Ranchers and Farmers
• Fleet Operators
• Anyone who needs their truck to stay running and perform at its best.
Keep your truck running. Keep your equipment powered. Stay in control with Idle On! PLUS.
Your truck works for you. Idle On! makes sure it stays that way.
John –
Our fire dept purchased a 2023 Ford F-550 rescue truck that has the auto-shutdown feature. The truck has 12v scene lights we use for night-time incidents, and it’s unacceptable for it to shut off after 30 minutes. The dealer said there was no Ford-approved option for disabling the auto-shutdown, but we found the Idle On at Merlin’s. While you can find similar devices on Youtube that do the same thing, I chose the Idle On because of the sturdy box the components come in. We bought the non-plugged version for the faster delivery, but found we couldn’t have used the plug-and-play version because the fire truck manufacturer had already used some of the wires on the body-builder plug. We asked the builder if we could share the wires, but they didn’t have a real answer. Because most of the wires report vehicle status (transmission in park, emergency brake on, etc), we decided to go ahead and connect the Idle On in parallel with the circuits already being used by the builder. So far, we have had no problems with things working, or experienced any unanticipated consequences. We will definitely add the Idle On to two new brush trucks when they are delivered. Thanks Merlin’s for a good solution!
Kenneth S. –
Well thought out product that works as advertised. The product ships in a timely fashion and comes with very specific instructions to insure a flawless installation.
Aaron Nance –
Outstanding and quick service!
Rich S. –
WORKS EXACTLY AS DESCRIBED, EASY INSTALL
Dutch –
Easy plug-n-play and just works exactly as it should!! Thank you!!
Daniel Ivicsics –
So far, it works really good and seems to be very convenient. And exactly what I need is I live in north dakota.Thank you so much
Jason Wilburn –
Scott Smith –
Mike –
Great Product!
Tracy Simmons –
trevor n. –
Great product, works as described. Very easy to install, the hardest part is getting the Ford plug unclipped. Great company to deal with, went above a beyond helping me.
Kevin H. –
Works as advertised on my 2023 F-450. If you have any issues Kevin even answers the phone himself quickly. I had another wire from the body builder already in a connector I had to put into the Idle On connector or it would have been just plug and play. I hooked up the idle increase wire to a switch on the overhead console and it worked perfect also. I did not need it, but I hooked it up anyway since it was available. This Idle On works. I ordered a second one for my 2024 F-450
Kevin H. –
2nd one in a week installed and works as promised. No more limit on idle time on a 2024 F-450. Plug and play and hooked up the high idle to the overhead switch just because it was there. 7.3 gas engine.
Bryan C. –
Unit works as expected, arrived really quick. Installation was extremely easy with provided video and schematic. Unit came with ample wire, and is a rugged design. We will purchasing additional units in the future for our other vehicles.
Daniel N. –
What a fantastic solution for our 2026 Super Duty. We followed the 2025 Upfitter instructions because the 2026 deets aren’t published yet … and everything was identical. Both the 30-min bypass and high idle work flawlessly! Be sure to watch a couple of the instructional YouTube vids. Cheers!
Shannon Javorowsky –
Sammy C. –
Don Thomas –
Easy plug and play installation , toughest part was getting the Ford plug out of its securement tab . Fast shipping, would defiantly recommend !
Anonymous –
Product arrived quickly and was very easy to install. Works as described and I no longer have to worry about my vehicle shutting off at an emergency scene.
William L. –
Excellent product! Arrived quickly and works perfectly!