boat trailer plug 4 way into 5 way?

(billyboard) · (billyboard) **Join Date: Apr 2004** 06-09-2004, 11:13 AM

I have a 4 way light plug on my '98 4Runner. My new MC trailer has a flat 5 way with the extra plug being for the disc break disengagement when backing up.
Any ideas on what I need to do to make my car and boat compatible? Can I but a 5 way flat for my car and have in installed? I could not find such a device when I searched.
Should I replace the trailer and car with something more common like the 7 way round ones?
Thanks for any help.
Billy

(bbeach) · (bbeach) **Join Date: Jul 2002** 06-09-2004, 11:25 AM

This is just a trick but you can plug the 5 way into the 4 way BUT your trailer brakes won't release to back up so to get by until you can rewire your truck plug to a 5 way flat just unplug the 5 and 4 and flip one around whenever you are ready to back up and that will trick the trailer into releasing the brakes. We used to do it all the time at the boat dealership... But eventually you'll need to rewire your truck plug to a 5 way flat so your brakes release.

(billyboard) · (billyboard) **Join Date: Apr 2004** 06-09-2004, 11:32 AM

I was not able to find a 5 way flat for sale to replace the 4 way on my 4Runner. Any ideas on where to get one?

(john_d) · (john_d) **Join Date: Apr 2003** 06-09-2004, 11:34 AM

Got to a local RV store they will be able to hook you up.

(rock_n_boardin)

Check out Uhual. They sell them and can install it if you don't want to do it.

(trace) · (trace) **Join Date: Feb 2002** 06-09-2004, 12:18 PM

until you find a 5-way male plug, you can just run a separate wire for the reverse lights into the 5-way female on the trailer with a male bullet connector.

samcdog 06-09-2004, 3:04 PM

As mentioned they sell 5 flat harnesses for your vehicle. I bought one at a local RV shop and did it myself. You will need to splice into the reverse light, but it is really pretty easy to do yourself.

riderzedge04 06-09-2004, 10:29 PM

if you see the blue wire it is a back up it is ez to do man just find your back up ligth

(talltigeguy) · (talltigeguy) **Join Date: Sep 2003** 06-10-2004, 4:45 AM

My Uhaul guy has become my friend

(billyboard) · (billyboard) **Join Date: Apr 2004** 06-10-2004, 10:08 AM

I've rented trailers from 2 different U-Haul shops in my area (central NJ) and my impressions are that this company has the least knowledgable (and in one location the least friendly) service staff I've had to endure. They are lucky they have a monopoly on trailer rentals. But I guess its not the same all over which is good for the rest of you. ;)

(bob) · (bob) **Join Date: Feb 2001** 06-10-2004, 11:37 PM

try this link www.championtrailerparts.com

they have what you need, till then im pretty sure the flip the plug thing works

(domin8) · (domin8) **Join Date: Mar 2004** 06-12-2004, 3:55 PM

Why did't the Mastercraft dealer throw one in when you got your trailer ????

(ccraftskierfan)

I guess for the same reason my Malibu dealer didn't give me one

(redhedstepchild)

The Moomba dealer gave me one.

It is easy to install. The dealer was even going to do it for me, but I was in too much of a hurry to get to the lake!

ag4ever 06-13-2004, 8:54 PM

BTW, when you filp the four way plug to release the brakes, you have to turn the lights on. It is the parking brake lights that will be connected to the reverse soleniod, and the turn signals will be backwards.

(domin8) · (domin8) **Join Date: Mar 2004** 06-14-2004, 9:39 PM

Extreme Trailer sent one with mine. Malibu boats in cali come on Extreme. Same Malibu dealer also sells the round stock chevy plug with a 5 way to the trailer.