Best Fifth Wheel Hitch w/ Underbed Rails for 2019 GMC Sierra 3500

Published 03/08/2019

Products Featured in This Question

Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches

(35)

$599.00

B&W Companion 5th Wheel Trailer Hitch w/ Slider - Dual Jaw - 20,000 lbs

(5366)

$1599.00

B&W Companion 5th Wheel Trailer Hitch - Dual Jaw - 20,000 lbs

(5366)

$1099.00

B&W 5th Wheel Lifting Device for Companion and Patriot Hitches

(404)

$38.00

Question:

I have a 2019 GMC Sierra 3500 and am shopping for a fifth wheel hitch. What I really want is something with rails that are underneath the bed. I don't have the prep package but I want a usable bed. What is the best hitch you can recommend that has underbed rails?

asked by: Kyle

Expert Reply:

Easily the best fifth wheel hitch that mounts to underbed rails for your 2019 GMC Sierra 3500 is the B&W Companion, either the fixed hitch for a long bed or sliding hitch for a short bed:

- Long Bed (8 feet): B&W Companion 5th Wheel Trailer Hitch item # BWRVK3500-5W
- Short Bed (6-1/2 feet): B&W Companion 5th Wheel Trailer Hitch w/ Slider item # BWRVK3400-5W

To mount the Companion you would need to install the Custom Underbed Installation Kit for B&W Companion 5th Wheel Trailer Hitches item # BWGNRK1016-5W which will fit either your short bed or long bed 2019 GMC Sierra 3500. This also doubles as a premium gooseneck hitch if you ever decide to change the type of trailer you are towing.

In regards to the Companion fifth wheel hitch, it is considered by many to be the top hitch on the market. With more than 500 reviews to date from our customers who have purchased it, this hitch has received a nearly unanimous 5-star rating. One of the reasons for that is the jaw system on the Companion; its dual jaws are a full 1" thick to provide complete contact with your king pin so you can have faith that your connection is absolutely secure. I've added a picture of the jaws so you can see for yourself how impressive they are as well as a photo of how the hitch looks when installed.

The Companion is going to give your '19 Sierra 3500 a much quieter ride with less rattling than other fifth wheels due to its secure connection, along with its polyurethane bushings. This hitch has a pivoting head to make hooking up easier, a cam-action latch to deter binding, offers three different height settings to ensure you are level with your fifth wheel and has a towing capacity of 20,000 lbs.

I have added links to video reviews of each product, the Installation Kit item # BWGNRK1016-5W, fixed Companion item # BWRVK3500-5W and sliding Companion item # BWRVK3400-5W.

The B&W Companion weighs over 150 lbs, the slider is almost twice that. If that's not something you're interested in moving by yourself and don't want to have to rely on someone to help you then I recommend purchasing the B&W 5th Wheel Lifting Device for Companion and Patriot Hitches item # BWRVXA3130. This heavy duty steel tool lets you lift your B&W 5th-wheel hitch from your truck bed with a hoist. The 5th-Wheel jaws clamp around the device for a secure grip.