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Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 8" Rise/Drop - 10K GTW, 400 lbs TW

Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 8" Rise/Drop - 10K GTW, 400 lbs TW

Item # RM-048-8
Our Price: $185.22
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Make up for the height difference between your RV and towed vehicle with this hitch adapter. Provides either an 8" drop or an 8" rise. Solid shank provides strength and durability. 1-800-940-8924 to order Roadmaster accessories and parts part number RM-048-8 or order online at Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 8" Rise/Drop - 10K GTW, 400 lbs TW. Accessories and Parts reviews from real customers.
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Roadmaster Accessories and Parts - RM-048-8

  • Tow Bar
  • Hitch Adapters
  • High-Low Adapter
  • Roadmaster
  • 8 Inch Rise/Drop
  • Fits 2 Inch Hitch

Make up for the height difference between your RV and towed vehicle with this hitch adapter. Provides either an 8" drop or an 8" rise. Solid shank provides strength and durability.


  • Allows for proper positioning of tow bar
    • Makes up for height difference between RV's hitch and towed vehicle's base plates
    • Also lets you mount a bike rack, cargo carrier, or other 2" hitch accessory
  • Provides either drop or rise for adequate ground clearance
  • Constructed of sturdy steel
    • Solid shank for suprerior strength and durability
  • Resists rust and corrosion with black powder coat finish
  • Hitch pin and clip or hitch lock sold separately
  • Made in the USA


  • Application: 2" x 2" trailer hitch receivers
  • Drop/rise: 8"
  • Receiver: 2" x 2"
  • Tongue weight: 400 lbs
  • Gross towing weight: 10,000 lbs
  • Length:
    • 4-1/2" From center of hitch pin hole to angled brace
    • 7-1/4" From center of hitch pin hole to back of receiver tube
    • 10-1/2" From center of hitch pin hole to center of hitch pin hole
  • Limited Lifetime Warranty

Dimension between hitch pin holes is 10.5 inches measured in red

Note: This adapter is designed to flat tow a vehicle only. Do not use to tow a trailer. When using with a hitch-mounted accessory, such as a bike rack or cargo carrier, the tongue weight of your hitch will be reduced by at least 50 percent.

Most tow systems require some sort of hitch accessory to either raise or lower the tow bar to an appropriate level. The "Safe Zone" for a motor-home-mounted tow bar ranges from 3" above level to 3" below. Car-mounted models must be absolutely level. This high-low adapter can provide you with the necessary drop or desired rise to achieve a level tow bar setup.

048-8 Road Master Hi-Low Hitch Adapter - 8" - 10,000 lbs GTW; 400 lbs TW

Installation Details RM-048-8 Installation instructions

Customer Satisfaction Score:

Customer Reviews

Roadmaster High-Low Adapter for Tow Bars - 2" Hitches - 8" Rise/Drop - 10K GTW, 400 lbs TW - RM-048-8

Average Customer Rating:  4.9 out of 5 stars   (245 Customer Reviews)

Make up for the height difference between your RV and towed vehicle with this hitch adapter. Provides either an 8" drop or an 8" rise. Solid shank provides strength and durability.


This works perfect when I hook up my 2022 GMC Canyon (Stock height) to my motorhome to maintain level tow bars.


Christy is a fabulous sales person. She took care of me like a pro. Everything fit perfectly or both holes lined up. I’ve towed a couple thousand miles with it. I couldn’t be happier. Thank you for the service. You’ll always be my go to for trailer parts and towing parts. Have a great holiday. Happy Thanksgiving and God bless.


Perfect adapter to tow my trailhawk. I use it to raise the tow bar so trailhawk to the tow bar are level during towing. I do recommend this adapter.


Exactly what I was looking for and it arrived in 2 days! Highly recommend E-trailer!



This hitch has been working great for the intended purpose.


The hitch adapter arrived on time. A bit pricey, but very high quality. Amy was very helpful in selecting right product.


Etrailer is always very responsive and very knowledgeable with their products and customer interaction. I would highly recommend them as a first point of contact for product and product recommendations.


The only thing I have changed is to have an additional receiver welded on top to carry a bike rack. The drop was perfect to tow my 2016 Hyundai Elantra GT


The product solved my problem by lowering the attach height on my motorhome making it level with that on the vehicle being towed.



I feel that the design limit for the torque this attachment imparts on the motorhome trailer hitch exceeds the design limit of the motorhome hitch. A few hard stops seem to have bent the motorhome hitch a little. I am towing a 4k lb vehicle with a 2015 Winnebago Vista.

Etrailer Expert

Rachael H.


Thanks for the feedback. It is always that the lowest rated component of the towing system be the determining factor for any towing situation. I looked on-line and it looks like your 2015 Winnebago Vista could have been equipped with a hitch rated for up to 5K from the factory. Please confirm that the hitch is rated appropriately for the vehicle you are towing. Additionally a supplemental braking system like the Roadmaster Even Brake # RM-9400 is recommended. If you do have a braking system it may need some adjustments for more effective braking of your toad. I have also included a link to one of our help articles that explains all the individual components of a flat towing system for your reference.


Very durable, towed our Bronco about 8,000 miles with no issue. Welds and gusset still look brand new.


Although I just needed to shim it up to keep the wiggle down, its doing the trick with the bike rack. Still need to try it out with the camper when I head back out to work.


Worked perfectly!


Worked great to level out the connection between our coach with the Blue Ox and the 1983 Jeep CJ7!



Still works great although we bought a newer jeep and don’t have to use the product with it. We have the flexibility of being able to tow either jeep by having this adapter.


Exactly what I needed, had to drop down 8 inches to make tow bar level, very well constructed



Working out as expected, have had no problems at all


Always easy and fast to get parts you need as well as prices


Ordered and received quickly as always.


Turned it over and it raises my towbar on the motorhome so I may safely flat tow our Jeep


Just received the Roadmaster 8" High-Low Hitch Adapter today and the quality looks awesome and etrailer was awesome to deal with super fast shipping and good communications, and I'm sure this is going to work just fine when I get ready to use it thanks etrailer.



Have used this for a year now for my tow car and it works awesome and well built would highly recommend this to anyone needing one.

Patrick B.


Thanks for taking the time to follow up with us, it's good to know the adapter is holding up.


Had very good service nice polite and very helpful


Just used it this past weekend for first time. It worked great! No problems whatsoever. Drove three hours to the destination and three hours back. Definitely will continue to use. I needed a hitch that was leveled with my tow bars and this was perfect. I would highly recommend etrailer for their excellent products.

Gerardo P.


Still working great.


I use a 4" drop down for my mobility scooter carrier. My SUV hitch was too high to allow me to run the scooter up onto the carrier. The drop down made the carrier hight perfect. The drop down is strong and very stable. Noe I can travel and be moble at my destination.

Clark B.


The down is still meeting my needs and is serving very well.


Product was just as advertised and made my Class "C" RV hitch and 4WD towing setup exactly level. Hi/Low Extension was top quality. Very satisfied with the product and prompt delivery. I am a multiple time purchaser through "etrailer" and every experience has been top notch. Seller is highly recommended!! Do note that Hi/Low Extension extended overall tow setup an additional 10" and therefore also required the addition of safety cable extensions and a new longer wiring harness.


Just what I needed - Bought a gently used Blue-Ox tow-bar to pull a recently acquired 1998 Honda Honda CRV with my 2005 Jayco Grayhawk. After installing the CRV baseplate (purchased from etrailer, another great buy, installed myself in about 45 minutes) the vertical alignment of the base plate connections and the RV's receiver hitch was 9-inches off. I found this hitch adapter, it arrived within a few days of ordering even when I ordered it less than a week before Christmas. A test tow around the neighborhood proved all worked and aligned great. etrailer team followed up, provided info on shipping status, all-in-all an excellent transaction.


Needed in a hurry, but did not opt for higher priced shipping. Item was shipped same day, and arrived fast. Very satisfied. I had previously ordered a bike carrier and was pleased to return. Best prices and fasted shipping. Will continue to use for my RV needs.

Carl W.


Great. Adjusted tow height and works fine.


Just received the order - everything was perfect! Fast shipping and appears to be a great product. Fits perfectly and solves my towing height issue. Being used with Blue Ox products (much less expensive option, and rated for more weight).

Excellent value and customer service (called prior to my order, ordered via web, and received follow up).

Will definitely use them again should the need arise!

Tom S.


One year later and still very happy with my purchase as well as the service I had received. Great stuff!


Great selection of hitch adapters. Just what I needed to lower a dirt bike carrier on a lifted truck. Shipping was fast and free.

Etrailer Expert

Mike L.


Be aware that the adapter has a 400 lb tongue weight capacity. This means that the dirt bike and the carriers combined weight cannot exceed 400 lbs.

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