Backup valve installs in trailer brake actuators with high psi ratings and wires into your tow vehicle so that the trailer brakes do not activate when you shift your tow vehicle into reverse.
Features:
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today, we're going to take a look at the Titan replacement solenoid valve for Titan brake actuators with reverse lockouts. Part number is T4748800. Now, between our actuator and the line that provides fluid to our calipers, we're doing an electric lockout. Basically, this is going to be connected to ground on one side, we'll show you how to do that, and to your reverse wire coming from your seven-pole or five-pole, six-pole, whatever you've got. On the other side, it's going to act as a solenoid. As your vehicles backing up, it's going to cut off that pressure, or that brake fluid from locking up the brakes.
Basically, this is important when you're backing up a hill and you want to be able to have your trailer wheels turn freely. This prevents that pressure from being sent back. Otherwise, when you started to back up a Hill, as the actuator gets compressed, it's going to apply the brakes. It's going to make it difficult to back up.Now, the solenoid is designed to replace the thread adapter that we have here on the back of the actuators. We're going to use a half inch wrench, and we're going to get that removed.
Basically, the actuator is designed to work with or without an electric lockout. By taking this out, we'll be able to thread this in. That way it'll be set up for that lockout procedure when we hit reverse. We want to get that secured to our actuator. Going to use that big nut there.
It's a 15/16 inch wrench.Now, we'll take the flexible brake line hose. You'll have a shorter one from your kit. Remember, we've lengthened ours a little bit just to make up for the length of the tongue. We're going to get that secured down. Now, as you start it, also hold this one with a wrench, that way we don't have to worry about this turning on us.
For this, you want to use a 9/16 and then for this, we're going to stay with a 3/8. Now, for the wiring side, I'm going to extend one of the wires slightly. It really doesn't matter which one. I'm going to use a piece of 16 gauge wire. This is going to allow us to get it to the reverse signal on the plug coming from our truck. To connect the two together, I'm going to use a heat shrink butt connector. Part number is DW05744. If you don't have wire, that part number is 16-1-1. Get that crimped down.Now, we're going to use a heat source to get this shrank. You can use a heat gun, you can use a mini torch or just a lighter. The key is not to overheat it. Just want to give it some gentle heat. You can see it start to shrink down just like that. Now, once it's fully shrank, you notice the wire looks like it's much bigger, and then there's just a little clear gel that comes out of the end. Now, the other wire will act as our ground, so we're going to strip that back. I always like to twist the wires, give it something good to hold on to. Then we're going to place on a ring terminal. Going to crimp that down and we just have to attach this to the tongue, so when we hit reverse, the signal comes through here. The solenoid is going to close, not allowing the fluid to pass by. Then because we've got it grounded out, it's going to work for us.I'm going to place that right here, so it still will be accessible, but as we slide this back, most of that wiring will go inside there. We use a number 12 self-tapping screw to make that connection, just like that. Got our connections made. Now it's just slide the actuator back and get our bolts put in. With those through, we're going to place a couple of nylon lock nuts on the other side. It seems like the four-inch bolts really work out well and give us just enough bolt link there to get those nylon threads engaged, get everything nice and secure. Now, with half-inch bolts, you'll use a 3/4 inch or a 19 millimeter wrench and socket. They're the same size. Now, we'll get our bolts torqued down and that's going to complete our look at the replacement solenoid valve for the Titan brake actuators with the reverse lockout, part number T4748800.
Average Customer Rating: 4.5 out of 5 stars (153 Customer Reviews)
Backup valve installs in trailer brake actuators with high psi ratings and wires into your tow vehicle so that the trailer brakes do not activate when you shift your tow vehicle into reverse.Products were great. I have one suggestion to the shipping dept. at trailer: DON'T put small items in the same craft paper that is used to fill voids in the shipping box. When I opened my box I pulled out the big bunch of craft paper and set it aside to pitch. I pulled out the bigger brake parts and then realized that i was missing two smaller items. At first I thought maybe they were back ordered. I checked the shipping paper and they were to be in this box. After going thru the craft paper I was going to pitch I found them inside. Close Call!!! Put the small items in a small box or envelope. Thanks. 309406
Reasonably priced 938882
937321
918009
Great service 913149
910395
Great product 907003
I'm pleased that it came on time 907093
This was well worth the price. I used a piece of woo led l, wedged in hitch for years. Had to replace master cylinder so I ordered this lockout solenoid. What a blessing! I can back up without getting out and wedging piece of wood in hitch. 905330
902289
894601
871947
just what I needed. Works great. Thanks 848873
Installed within 10 minutes. Works great !! Highly recommended ! 827733
I have ordered several boat trailer parts and been very satisfied. 822112
Ordered late Thursday and got the next Monday. We earlier then I expected. 815652
What a great service etrailer provides. i recently had to place two orders for spare parts. Two different parts suppliers. I placed both orders on a Sunday. etrailer received my order and I had it by Wednesday and had the part installed by Wednesday night. They kept me informed through the whole process via email. My second parts order through a different company had to be canceled and reordered 3 times in 3 days, still don't know where my parts order is. etrailer sets the expectations that others should follow. Great Job. 807740
They don’t seem to last more than a season at best 801000
So far so good. The customer service was excellent. They helped me through the process of product selection with ease and a sense of humor. Much better than the local shops here in Anchorage. I'm not mechanical in any sense so I found the online installation videos to extremely easy to follow. I ended up replacing all the brake lines, the master cylinder and the actuator. It was easy but I did it with help of the videos and a few phone calls to customer service who talked me off the ledge. The calipers will be replaced this year and I'm hoping for similar results. I'll keep you posted and thanks again. Great products, CS and online help. 793307
Finally got a new one to work no more locking up in reverse. Works great 782720
fits like the original 766477
The ordering was easy, the online tutorials were very helpful, and the parts arrived a few days after being ordered. I would definitely go back to each trailer for all future needs. 763228
Fast shipping 760670
Working good for backup lock out 744522
Excellent service as always. E-Trailer is always the 1 and only place i need to go to for my trailer repair/ maintenance parts. 707538
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