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Trailer Hitch > 2008 > Lexus > RX350

Hidden Hitch Trailer Hitch for the 2008 RX350 by Lexus

Hidden Hitch Trailer Hitch

ratingratingratingratingrating (21 reviews)

Code:   70778



Shipping Special

Shipping Weight: 38 pounds


Hidden Hitch Trailer Hitch Receiver - Custom Fit - Class III - 2" - 2008 RX350 by Lexus

This durable, fully welded Lexus RX350 trailer hitch receiver features a powder coat finish over an e-coat base to ensure superior corrosion resistance.


  • Custom-fit trailer hitch lets you tow a trailer or carry a bike rack or cargo carrier with your Lexus RX350
  • Computer-aided, fully welded steel construction ensures strength and durability
  • Easy, bolt-on installation - no welding required
    • Complete hardware kit and installation instructions included
  • Lifetime technical support from the experts at
  • Black powder coat finish covers e-coat base for superior rust protection
  • Stylish, round-tube design
  • Ball mount, pin and clip sold separately


  • Receiver opening: 2" x 2"
  • Rating: Class III
    • Maximum gross trailer weight: 3,500 lbs
    • Maximum tongue weight: 350 lbs
    • Not rated for use with weight-distribution systems
  • Limited lifetime warranty Technical Support

At we're committed to the products we sell, and to our customers. Our experienced and knowledgeable staff are available via both phone and email to address your questions and concerns for the lifetime of your hitch. The technicians at etrailer perform hitch installations on a daily basis, making them a valuable resource for do-it-yourselfers. The one-on-one, personal service you'll receive comes straight from an expert in the towing and automotive field. We've installed it, we've wired it and we've towed with it, so whatever your question, we can answer it.

70778 Hidden Hitch Class 3 Trailer Hitch Receiver

Video of Hidden Hitch Trailer Hitch Receiver - Custom Fit - Class III - 2"

Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

Video install trailer hitch 2005 lexus rx330 70778
Trailer Hitch Installation - 2005 Lexus RX 330 - Hidden Hitch
Video hitch install 2007 lexus RX350
Trailer Hitch Installation - 2007 Lexus RX 350
Video install trailer hitch 2006 toyota highlander 70778
Trailer Hitch Installation - 2006 Toyota Highlander - Hidden Hitch
Video install trailer hitch 2005 toyota highlander 70778
Trailer Hitch Installation - 2005 Toyota Highlander - Hidden Hitch
Video install trailer hitch 2004 toyota highlander 70778
Trailer Hitch Installation - 2004 Toyota Highlander - Hidden Hitch

Video Transcript for Trailer Hitch Installation - 2005 Lexus RX 330 - Hidden Hitch

Today on this 2005 Lexus RX330 we're going to install part number 70778 from Hidden Hitch. Alright, this is what the hitch looks like when it's installed on the vehicle. Next we'll give you some measurements that will help you out in selecting some accessories such as bicycle rack, a ball mount, or a cargo carrier. And we set up our hitch pin to the edge of the bumper it's going to be about 1/4-inch. And from the top of receiver opening down to the ground will be 14-3/4 of an inch. Now I'll go ahead and show you how the hitch is installed.

So our first step is to go ahead and remove the tie down bracket and rubber plugs. Now we're looking at the passenger's side to be identical on the driver's side as well. Let's go ahead and repeat it for the driver's side. At this point we can go ahead and install the hitch. Now it's definitely a good idea to have an extra set of hands and I'll hold it up while you're running the hardware into the frame.

And when we install the hardware we'll make sure that the teeth on a conical toothed washer point towards the hitch. Right now you're going to leave all your hardware loose so you can move it around to help get the bolts in place. With all the hardware loosely installed now we can go ahead and snug everything down. Once we have the hitch drawn up to the vehicle we can go ahead and torque everything as specified in the instructions. Alright, and there you have it for part number 70778 from Hidden Hitch..

Customer Reviews

Hidden Hitch Trailer Hitch Receiver - Custom Fit - Class III - 2 - 70778

Average Customer Rating:  ratingratingratingratingrating4.9 out of 5 stars   (21 Customer Reviews)

- 70778

ratingratingratingratingrating by: Federico L.12/13/2013

Is this review helpful?

The hitch arrived within a few days and only took about 20-30 min to install. The instructions and the videos were very useful. It was all simple and easy to complete. I selected this hitch as I liked its curved appearance. I also liked that it protruded a bit off the bumper so any tie-downs I set up when using the roof rack don't rub against the bumper. Furthermore, it provides better clearance with the back hatch so it can be opened with some hitch accessories installed. It also serves as a quick platform to step on when using the roof rack. Overall, I am super pleased and have used it several times already. Works great! 110094

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ratingratingratingratingrating by: Paula04/19/2013

Is this review helpful?

Hi, Just wanted to put up my review. Orderd parts and they arrived in a timely manner. The box has a huge hole in it due to the good ole post office not etrailer. I was afraid parts would be missing but the way etrailer packaged every thing all was in the box. It took me literally 5 minutes to put take off the tow bars on highlander and install the tow hitch. Wiring instruction were ok but the video instructions were right on and it only took approx 7 minutes to do wiring. Thank you etrailer for a easy project that even a girl can do!!! :- 76917


Are you happy with how far the receiver sticks out below the bumper? I am concerned about which brand to buy.

comment by: Cycling Guy - 5/23/2013


We have sent an email to Paula letting her know about your question. If she has anything to add, it will appear below her original review so keep an eye on that page.

Patrick B - 5/24/2013


Hi Cycling Guy,I am very happy with it. I feel it protrudes out just enough. It literally only took 5 minutes to install with the air hammerjack tool. Etrailer made sure I also got the right wiring I needed and nothing had to be spliced. That took a little longer maybe 15-20 minutes. The video explains everything VERY well. Good luck and have a great day :-

comment by: Paula - 5/28/2013


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ratingratingratingratingrating by: Roger in Seattle11/02/2013

Is this review helpful?

Spoke with friendly knowledgeable representative who offered advice regarding wiring kit for trailer hitch. Hitch looks good on my Lexus RX 400h. Due to spare tire's clearance requirement hitch is quite visible but it looks good. At least it does at this point while it is shiny and new. Had professional installation. One hour for hitch and one and one half hour for wiring. Seems reasonable since wiring requires taking the panels out of the vehicle's back compartment. Very satisfied to this point.106102

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ratingratingratingratingrating by: JC07/21/2013

Is this review helpful?

Have no hesitations about ordering from etrailer. The customer service is excellent and the product came quickly and just as advertised. Had the hitch installed in less than 15 minutes with regular hand tools.90764

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ratingratingratingratingrating by: Kris J06/28/2013

Is this review helpful?

Product was good shipping was fast. However box had a hole in it but nothing was missing . No problem putting it on . Only bad was box had hole and product had scratches but it's a trailer hitch so not really in issue . Thanks you. 86592

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ratingratingratingratingrating by: Josh A.04/12/2011

Is this review helpful?

This hitch was amazingly simple to install! I was able to install it myself, in my driveway, without a lift, and using a simple ratchet wrench, in roughly 15 minutes. It took such a short amount of time, that I had only consumed about 1/10th of my beer that I had been planning to enjoy during the installation process. Pros: - Super quick and simple installation - Simple and clear instructions (especially the videos from etrailer) - Excellent build quality Cons: - The aesthetics of the hitch leave a bit to be desired, but then again, this is a freakin' trailer hitch. Initially, I was not too happy with how this made my Lexus look at certain angles, but I'm starting to live with it. I can't say that this is a CON against this particular hitch, because the other brands looked nearly identical for my vehicle. Overall, I'm very satisfied with this hitch, and especially the service that I got from etrailer.11540

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ratingratingratingratingrating by: Jerry N10/03/2009

Is this review helpful?

Excellent, solid product. Very solid hitch. Had to use a couple of 2x4's and a teenager to lever the holes into alignment to mount on my Highlander, but everything else was very straightforward. Ordered over the phone and the customer service was 1st rate. Shipped regular and it got here in about 2 days. Wouldn't have tried this myself until I saw eTrailers' install instructions on You Tube. Glad I did! 2444

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ratingratingratingratingrating by: Jeff B.10/24/2007

Is this review helpful?

Clunky, but good I had to use PEP Boys to install it only because I'm 67 yo and did not have a good wrench to torque down everything. It's a substantial hitch that I'm using with a bike carrier, so Tongue Weight of 350 lbs was right on the spot. It is a bit obtrusive looking, but no one will rear end me with impunity, either.465

- 70778

ratingratingratingratingrating by: SC04/15/2014

Is this review helpful?

Installation easy as shown on the video. Works well and fit is good.125090

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ratingratingratingratingrating by: Joel N.09/10/2013

Is this review helpful?

Easy install for my 2007 RX 400h but must remove a plastic cover on driver's side to install and cannot replace after install...doesn't look like is needed anyway.99252

- 70778

ratingratingratingratingrating by: Donald J.07/11/2013

Is this review helpful?

The hitch arrived in excellent condition and right when it was projected to. Easy to install, it was on the vehicle within thirty minutes.88915

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ratingratingratingratingrating by: Chris06/03/2013

Is this review helpful?

Easy installation. Online video was very helpful. Thank you for the installation tips. Very solid construction. Highly recommended.83183

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ratingratingratingratingrating by: Santos G.02/26/2013

Is this review helpful?

Excellent fit and easy to install. Thank you for suggesting this product for my SUV.67821

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ratingratingratingratingrating by: Jack T09/17/2012

Is this review helpful?

Satisfied with everything except that the trailer hitch is not hidden54909

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ratingratingratingratingrating by: Zlatko B.06/20/2012

Is this review helpful?

Perfect fit and easy to install. Etrailer is one of of the best online retailers I have ever dealt with. 44906

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ratingratingratingratingrating by: Pat E07/12/2011

Is this review helpful?

Great hitch. Had it installed in 15 min19303

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ratingratingratingratingrating by: Paul L05/23/2011

Is this review helpful?

Excellent hitch and the installation really was as simple as the video on the web site. Thanks!15103

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ratingratingratingratingrating by: Mark D.04/24/2011

Is this review helpful?

Very easy install, less than 30 minutes total. 12281

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ratingratingratingratingrating by: C. Lyons02/10/2011

Is this review helpful?

I haven't installed the hitch yet but, I am sure it will be fine. This is the second hitch we have ordered from ETrailer. I placed the order Saturday and received the hitch Weds. The service has been great!6984

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ratingratingratingratingrating by: Jim N.02/24/2009

Is this review helpful?

great product A breeze to install, great quality, eye appeal and good free shipping and packaged very well1602

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ratingratingratingratingrating by: Jim09/12/2007

Is this review helpful?

The hitch extends pass bumper I saved $65 by buying from etrailer Vs. getting it from my local [….]. This model extends pass the bumper by 3 inches. I would have bought the (shorter) other model if I had known this.399

Ask the Experts about this Hidden Hitch Trailer Hitch
Expert Answers about Hidden Hitch Trailer Hitch Receiver - Custom Fit - Class III - 2" - 70778                                             Do you have a question about this Trailer Hitch?

  • Torquing a Hitch for a 2007 Toyota Highlander
  • I will provide a link to the installation instructions below. The instructions contain the correct torque specifications.
    view full answer...

  • Trailer Hitch for a 2005 Toyota Highlander with a Japanese Bumper
  • The Hidden Hitch Class III 2 Inch Hitch, part # 70778, will not work with your Japanese rear bumper configuration. The installed hitch receiver sits pretty tight under the US bumper. The Curt hitch # 13530 and the Draw-Tite hitch # 75153 will be in the same location. You might want to look into having a hitch fabricated for you.
    view full answer...

  • Is There A Wiring Mounting Tab On the Hidden Hitch Like The OEM Hitch for My 2004 Lexus RX330
  • There is no tab on the Hidden-Hitch, item # 70778, for mounting the wiring harness. We do carry mounting options for the wiring on your vehicle. For the 4-way trailer connector you can use either the Mag-Flat (TM) 4-Pole Mounting Magnet, item # 38095, or the 4 and 5-Flat Trailer Connector Mounting Box, item # 18145, which are some of our best selling mounting options for the 4-way flat connector. If you have a 7-way connector then you can use the 6 and 7-Way Trailer Connector Mounting Box for
    view full answer...

  • Hitch Class Rating for 2006 Toyota Highlander
  • It is not uncommon to see a 2 inch hitch rated at 3,500 lbs gross trailer weight called a Class III hitch. Because of the construction of the 2006 Toyota Highlander the hitches for it are only rated up to 3,500 pounds weight carrying. Class III hitches are rated up to 6,000 lbs gross trailer weight with 600 lbs tongue weight depending on the vehicle the hitch is designed for. We have an article that provides more information regarding different hitch classes and their capacities, I will provi
    view full answer...

  • Trailer Hitch Recommendation for a 2007 Toyota Highlander Hybrid
  • For your 2007 Toyota Highlander Hybrid, I recommend the Hidden Hitch Trailer Hitch # 70778. This is a Class III trailer hitch with a 2 inch receiver rated for 300 pounds tongue weight and 3,500 pounds gross trailer weight. I have included a link to the installation instructions and a link to a video showing a typical installation for you. If you plan on doing some towing I also recommend the etrailer Ball Mount Kit, # 989900. It comes with 2 ball mounts, 2 balls, a hitch pin with clip, and a
    view full answer...

  • Availability of Hitch for 2005 Lexus RX330 That Will Be Hidden At the Rear of the Vehicle
  • I will have three choices of trailer hitches to fit your 2005 Lexus RX330. The Curt Class III 2-Inch Hitch, part # 13530, the Hidden Hitch Class III 2-Inch Hitch, part # 70778, and the Draw-Tite Class III 2-Inch Hitch, part # 75153. All three of the hitches are a Class III 2-inch receiver size and will have a maximum towing weight capacity of 3,500 lbs. The installation and where the hitch will be located on the vehicle is the same on all three of the hitches. When installed the hitch wil
    view full answer...

  • Hidden Hitch Recommendation for a 2004 Lexus RX330
  • All of the hitches available for your 2004 Lexus RX 330 will have the same basic appearance. The only one that is slightly different would be the Curt Hitch # 13530. This hitch has the safety chain loops below the hitch opening whereas the Hidden Hitch # 70778 and Draw-Tite hitch have the safety chain loops above the hitch opening which I think makes them a little less visible. Check out the installation video and installation instructions I attached also. To complete your towing setup you
    view full answer...

Lexus RX350 Accessories

Weight Carrying Capacity
Gross Towing Weight (GTW):
3,500 lbs.

Tongue Weight (TW):
350 lbs.

Weight Distribution Capacity
Hitch does not allow
use of weight distribution

Trailer Hitch Installation Instructions 70778 Installation instructions 70778 Installation Instructions

Tech Tip
No drilling required for installation

Manufacturer Estimated Installation Time

Recommended Wiring:
Hidden Hitch 118478

Most Popular Ball Mount:
Hidden Hitch 2923

1-7/8" hitch ball - 19260

2" hitch ball - 63845

2-5/16" hitch ball - 63847

If you have any questions you can contact our customer service department.

Info for this part was:

Expert Research:
Michael L

Video Edited:
Zack K

Written by:
Lindsey S

Expert Research:
Robert G

Expert Research:
Michael H

Expert Research:
Jeff D

Expert Research:
Jameson C

Video Edited:
Joshua S

Test Fit:
Nicholas E

Expert Research:
John H

Video Edited:
Dustin K

Test Fit:
Shane T

Video by:
Alan C

At we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.

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