TrailJustin
Member
- Joined
- Feb 21, 2025
- Messages
- 130
- Reaction score
- 13
- Tundra
- 2022 Limited DCLB TRD Offroad
It is no secret the inverter in the Tundra kinda sucks. One of my biggest disappointments is that the 4th Gen Hybrid Tacoma gets a 2400w inverter that runs off the truck! But even the Hybrid Tundra only gets a weak 400w inverter.
The biggest problem with the inverter in the Tundra is that it is 400w but once you start driving that drops down to around 120w. A 120w is practically useless as even my laptop uses 130w to charge. I used to have the Guild Outfitter inverter modification for my 3rd Gen Tacoma but there wasn't much documentation confirming if it would work for the Tundra but I decided to give it a try. Long story short it works and it adds and extra 12v plug to the cab!
Link: https://guildoutfitters.com/product...terior-outlet-upgrade-kit-by-guild-outfitters
Simply pull up on the rear cup holder section and it will pop out of its clips.
Give the rear of the center console a wiggle and th clips on the side will release. Some of the cable zip ties will need to be removed to allow the panel to be slid out of the way but I did not need to unplug anything,
In the image above the gray box is the trucks actual inverter. The white cables in the bottom left are its main cables from the battery and the other white plugs next to that is the harness that controls when the inverter is on or off.
There is a 10mm bolt to the right of the inverter. This is the bolt you will remove and attach the ground lead from the inverter harness to.
Simply unplug the control harness from the inverter and plug in this harness in-between. This will make it so the wire that detects ground so the trucks inverter will run at 400w all the time.
Before reassembling the truck simply test by turning on the truck, then the inverter, and putting the truck into gear and the inverter light on the desk should stay orange.
For example, as I am writing this in the parking lot, I have my boat trolling motors batteries charging. The charger is 200w and I have it plugged into a portable EcoFlow Battery so it is charging even when the truck is off. But when the truck is on and I am driving the EcoFlow is charging off of the truck at 400w! Then when I arrive at my destination the EcoFlow is topped off, my boat batteries are topped off and I am able to go on about my day.
This also works well for charging Ebikes, camera equipment, scooters, and more. You could even us 400w to charge your trailer you are towing as DC to DC charging through the 7pin hitch is only about 120w. Just run an extension cable.
The biggest problem with the inverter in the Tundra is that it is 400w but once you start driving that drops down to around 120w. A 120w is practically useless as even my laptop uses 130w to charge. I used to have the Guild Outfitter inverter modification for my 3rd Gen Tacoma but there wasn't much documentation confirming if it would work for the Tundra but I decided to give it a try. Long story short it works and it adds and extra 12v plug to the cab!
Link: https://guildoutfitters.com/product...terior-outlet-upgrade-kit-by-guild-outfitters
Installation Instructions
Step 1. Remove the Rear Cup Holders
Simply pull up on the rear cup holder section and it will pop out of its clips.
Step 2. Remove Rear of Center Console
Give the rear of the center console a wiggle and th clips on the side will release. Some of the cable zip ties will need to be removed to allow the panel to be slid out of the way but I did not need to unplug anything,
Step 3. Locate the Ground Screw
In the image above the gray box is the trucks actual inverter. The white cables in the bottom left are its main cables from the battery and the other white plugs next to that is the harness that controls when the inverter is on or off.
There is a 10mm bolt to the right of the inverter. This is the bolt you will remove and attach the ground lead from the inverter harness to.
Step 4: Installing the Harness
Simply unplug the control harness from the inverter and plug in this harness in-between. This will make it so the wire that detects ground so the trucks inverter will run at 400w all the time.
Before reassembling the truck simply test by turning on the truck, then the inverter, and putting the truck into gear and the inverter light on the desk should stay orange.
Overall:
This is one of those functionality mods that allows you to run the inverter at 400w all the time. Again, it isn't the craziest thing in the world, but it certainly does help. For those who don't know 400w in the real world is nothing. It won't run a coffee maker, power tools, or even flood lights. But what it is good for is charging stuff.For example, as I am writing this in the parking lot, I have my boat trolling motors batteries charging. The charger is 200w and I have it plugged into a portable EcoFlow Battery so it is charging even when the truck is off. But when the truck is on and I am driving the EcoFlow is charging off of the truck at 400w! Then when I arrive at my destination the EcoFlow is topped off, my boat batteries are topped off and I am able to go on about my day.
This also works well for charging Ebikes, camera equipment, scooters, and more. You could even us 400w to charge your trailer you are towing as DC to DC charging through the 7pin hitch is only about 120w. Just run an extension cable.
