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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: $178.27
Accessories and Parts
Shipping Weight: 23 lbs
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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 etrailer.com. 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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  • Reviews (243)
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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.


Features:

  • 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


Specs:

  • 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   (243 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.

by:

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



by:

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.



by:

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

Paul

12/7/2023

This hitch has been working great for the intended purpose.



by:

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.



by:

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



by:

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.



by:

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



by:

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

David

1/30/2023

Working out as expected, have had no problems at all



by:

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

Jeff

12/4/2023

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.



by:

Worked perfectly!



by:

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



by:

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



by:

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

Walter

5/21/2017

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.

7/5/2017

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.


by:

Ordered and received quickly as always.



by:

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.



by:

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



by:

Had very good service nice polite and very helpful



by:

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.

Anonymous

3/4/2014

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.

3/6/2014

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


by:

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.

7/24/2020

Still working great.



by:

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.

8/2/2018

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



by:

etrailer was great to work with



by:

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.

5/13/2015

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



by:

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.

3/24/2015

Great. Adjusted tow height and works fine.



by:

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.



by:

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.


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See what our Experts say about this Roadmaster Accessories and Parts

  • 8 inch High Low Adapter to Use with Blue Ox Tow Bar
    For an 8 inch high low adapter to use with your Blue Ox tow bar you would want the Roadmaster part # RM-048-8.
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  • How Level Does Towbar For Flat Towing Vehicle Behind Motorhome Need to Be
    According to Blue Ox and Roadmaster, you want to use a High/Low adapter that would place the tow bar's attachment to the hitch no more than 3 inches above or below level. Anywhere WITHIN that range would be perfectly acceptable.
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  • Parts Needed For Flat Towing a 2011 Honda CR-V With Falcon 2 Tow Bar
    The Roadmaster Direct-Connect Base Plate Kit # RM-521559-5 will have a height of approximately 17-1/4" on your 2011 Honda CR-V with 225/65-17 tires. Depending on your tire size and any suspension sag over time your exact height may be different. You will need to verify the receiver height on your tow vehicle to determine if you will need a high-low adapter for the Roadmaster Falcon 2 Tow Bar # RM-520. The High-Low Adapter is available in a 4" # RM-048-4, 6" # RM-048-6, 8" # RM-048-8,...
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  • Will a Blue Ox Immobilizer Anti-Rattle Work on a Roadmaster High Low Adapter
    Yes, the Blue Ox Hitch Receiver Immobilizer II # BX88224 is compatible with the Roadmaster High-Low Adapter # RM-048-8 that you referenced. These two products would work well together. I attached review videos for both for you to check out as well.
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  • How Much Does the Roadmaster RM-077-8 and RM-048-8 Weigh?
    As the Roadmaster Dual Hitch Receiver # RM-077-8 has a solid shank for added capacity, it does weight right at 28 pounds. I had the Roadmaster High-Low Adapter # RM-048-8 measured as well. From center of one pin hole to the center of the other is actually 10 1/2 inches, which I am having added to the product page. This is also a little lighter than the # RM-077-8 at 23 pounds. It should also be noted, however, that this is not designed to be used for towing a trailer. Both of these are...
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  • Hitch Adapter and Bike Rack Recommendation for E-Bike and Flat Towing
    To replace your Roadmaster High-Low Adapter # RM-048-8 I recommend using this replacement shank from Gen-Y: - Replacement Shank for Gen-Y Adjustable Ball Mount # 325-GH-404 I like this option because it's more heavy-duty than pretty much every other adapter, plus it has a receiver above the shank so your bike rack will be at a higher location for better clearance. Then for a bike rack I recommend using the Swagman E-Spec # S94FR and then using the Swagman Ramp and Bridge # S32YR to...
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  • Does Weight Distribution System Require A Rise Adapter if Rise Is Needed
    The great thing about weight distribution systems is that you can flip the shank upside down and install the head back onto it in the rise position to gain additional height as needed like with what comes with the # RP66083. This can do a rise of up to 6-1/2 inches and is good for a tongue weight range of 400-800 lbs and comes with best sway control for fighting sway before it starts.
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  • High/Low Hitch Adapter to Keep Nighthawk Tow Bar RM-677 Level for Best Operation
    Roadmaster does specify the 3-inch safe zone for tow bar height differences at the motorhome and toad ends. Really any tow bar will perform better when it is level since there will be less arm tube friction. A level tow bar will also endure less mechanical stress and it will put less stress on the base plates, the towed vehicle's frame and its suspension. Since you have invested in the Nighthawk # RM-677, one of the best tow bars available, I recommend you protect your investment and...
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  • Parts Needed For Flat Towing 2013 Jeep Wrangler Sport Behind 2008 Forest River Sunseeker Class C RV
    For the safest and easiest setup you will need the Roadmaster Base Plate # RM-521448-5 for your 2013 Jeep Wrangler Sport. This will connect to your 2008 Forest River Sunseeker with the Roadmaster Nighthawk All Terrain, Non-Binding Tow Bar # RM-676. These bars have an aluminum construction for light weight along with lights for better visibility and channels to hold the cables. The tow bars will need to be within 3" of level from your camper to the front of your Jeep. We do have High-Low...
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  • Parts Needed to Flat Tow 2017 GMC Terrain
    Flat towing your 2017 GMC Terrain without adaptive cruise control or active air shutters is going to require a number of parts; which I will list for you. And you were also correct that the active cruise control and air shutters does affect fit somewhat but everything I list is going to be compatible for your '17 Terrain that does NOT have those features. - Base Plate Kit: Direct-Connect Base Plate Kit # RM-523184-5 - Tow Bar: Roadmaster Falcon All Terrain, Non-Binding Tow Bar # RM-522 -...
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  • Recommended Ball Mount for a Jeep Wrangler
    The Roadmaster High-Low Adapter part # RM-048-8 is designed to be used for flat-towing only and will not work to tow a trailer. Instead, you are going to need a ball mount. In order to select the correct ball mount for your Jeep/trailer you are going to need to do a bit of measuring. This process is best outlined in the attached help article. Once you find out the correct rise/drop you need to keep the trailer level you can then take a look at our available ball mount selection which...
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  • Hitch Adapter Recommendation For Flat Towing
    We do carry adapter bars for the very reason you are experiencing. Many tow systems require an adapter to make the tow bar more level. Normally the safe zone for towing a vehicle is either 3 inches above or 3 inches below. You want to make sure your towed vehicle is absolutely level for safe towing. I recommend the Roadmaster High-Low Adapter for Tow Bars, part # RM-048-8. It has a weight capacity of 10,000 lbs, fits 2 inch by 2 inch receivers, and has a rise/drop of 8 inches. It measures...
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  • Parts Needed for Flat Towing 2006 Jeep Grand Cherokee
    If a tow bar like the Roadmaster StowMaster # RM-501 is properly maintained, kept clean and protected during storage periods then it could be perfectly fine. If the tow bar is 10 years old and has never been serviced then a rebuild kit may be in order. For the Stowmaster RM-501 the rebuild kit is part # RM-910003-20. We offer tow bar cover # RM-052-3 for the StowMaster. For a compatible set of base plates I recommend Roadmaster's XL base plate kit # 1427-1. These work with the StowMaster...
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  • Options for Carrying a Spare Tire While Flat Towing
    I have an alternate solution for you. It sounds like you have the Roadmaster Hitch Mounted Spare Tire Carrier w/ 2" Receiver Opening # RM-195225 which lowers your hitch receiver 2" and reduces your flat towing capacity to 10,000 lbs. and tongue weight by 33%. Unfortunately, you can not use another adapter like the Roadmaster High-Low Adapter # RM-048-10 (10-1/4" Rise/Drop) in that spare tire carrier hitch receiver. Your best option is going to be to remove the spare tire carrier when flat...
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  • Low Hanging Front Mount Hitch Recommendation for a 2013 GMC Sierra 2500HD
    You can use a high low adapter like part # RM-048-8 to lower the hitch opening but you should note that it will lower the capacity of the hitch by 50 percent. I attached a picture of the Curt Hitch part # C31023 installed and you can see it sits a bit closer to the ground. This might be your best option since it wouldn't require the use of the high low adapter.
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  • Recommended Ball Mount With 4" Drop For 6500lb Trailer
    I would be happy to help! The Roadmaster High-Low Adapter # RM-048-8 you were looking at is designed for flat towing a vehicle, and cannot be used to tow a trailer. Instead you need a ball mount. I recommend the Draw-Tite Ball Mount # 2753 which has 4" of drop. You will also need either 2" hitch ball # 63845, or 2-5/16" hitch ball # C40007 to match the coupler on your trailer. This setup has a 7500lb trailer weight rating, and a 750lb tongue weight rating which is plenty for your 6500lb...
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  • Parts Needed To Flat Tow a 2017 Jeep Wrangler Lifted With Aftermarket Bumper Having 3/4" Wide D-Ring
    First you will want to verify with your aftermarket bumper manufacturer to ensure it is rated for flat towing use. As long as your bumper is rated for towing you can attach the 3/4" D-Ring Adapters # RM-035 to the Roadmaster Nighthawk Tow Bar # RM-676. These adapters will fit a 3/4" wide D-Ring with either a 7/8" or 1" diameter mounting pin. With your 2017 Jeep Wrangler being lifted you will likely need one of the High-Low adapters to keep the tow bars within 3" of level from your motorhome...
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  • 8 inch Rise/Drop High Low Adapter with Higher Weight Capacity than 5k
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  • Recommended High Low Adapter to Allow Tailgate to Open While Towing Micro Minnie Winnie
    Dan, I would need to know how much room you need to be able to open the tailgate with the trailer attached but you could theoretically use the Roadmaster High-Low Adapter for Tow Bars # RM-048-8 which would lower your receiver 8" likely giving you the clearance needed to drop the tailgate.
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  • Recommended Roadmaster Base Plate for 2019 Jeep Wrangler Unlimited with Factory Bumper
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  • Which High/Low Adapter for Flat Towing Lifted Jeep
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  • Can High-Low Adapter be Used for Towing a Car Dolly Behind an RV?
    The Roadmaster High-Low Adapter # RM-048-8 is used for flat towing and not for towing a trailer or dolly. Instead you would need to use the hitch on your 2017 Winnebago Vista and the a ball mount with the correct rise or drop.In order to choose the correct ball mount, there are a couple measurements you'll need to take. First, make sure both your Winnebago and the tow dolly are parked on level ground; you'll then want to measure from the ground to the top of your hitch receiver. Next, measure...
    view full answer...
  • Will The 2-Piece Roadmaster Base Plate Kit # RM-521453-5 Fit a 2016 Jeep Wrangler Unlimited?
    For your 2016 Jeep Wrangler Unlimited you are going to need the Roadmaster Direct-Connect Base Plate Kit # RM-521448-5. The crossbar integrated into this mount is required due to your chassis. On the newer JL Wrangles the Base Plate # RM-521453-5 you found is designed to fit the chassis has more strength and does not need the crossbar. I recommend pairing this with the Roadmaster Nighthawk # RM-676. The Roadmaster Accessory Kit # RM-9284-2, Wiring # HM56200, and Charge Line # RM-156-25...
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  • Can the Roadmaster Quiet Hitch Be Used for Flat Towing using a Class IV Hitch and High Low Adapter
    The Roadmaster Quiet Hitch # RM-061 would work great for your application as long as your Class IV hitch and the high low adapter are both 2 inch hitches. The Roadmaster 8 inch high low receiver that we currently have # RM-048-8 is a 2 inch receiver. For your application you might want to consider using 2 of the Roadmaster Quiet Hitches, one for the receiver at you truck and one for the receiver on the adapter. For your reference I have also included a link to a helpful article that...
    view full answer...


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