For Class C enthusiasts everywhere, today’s review is of the 2024 Forest River Sunseeker 2400DSB. This model is based on the Mercedes-Benz Sprinter chassis and features a bunk above the cab. Also, there is a lot of technology in this unit, specifically when you’re in the captain’s chair. (We’ll talk more about that at the end of the review.)
But first, while many familiar with the Sunseeker might know the 2400B, they will be surprised to see some of the design changes found in the 2400DSB. And he most significant change just might be moving from a single large slide room to two smaller ones.
At a Glance: Sunseeker 2400DSB
I gave the 2024 Forest River Sunseeker 2400DSB four out of five stars. This is a nicely finished RV, but the access to the bathroom is a bit tight with the slide-out (and almost impossible with the bed slide in). There is also a low-budget bathroom fan in what is otherwise a premium-feeling RV. You will also want to be careful loading this with 971 pounds of cargo carrying capacity. This might sound like a lot, but a full tank of water takes over 400 pounds from this equation.
However, a lot of the safety technology inherent in the Mercedes-Benz chassis (really, really nice) is what brings that score to where I have it.
Check the Specs
- Sleeping capacity: 6 with dinette option; 4 with theater seating
- CCC: 971 pounds
- Exterior length: 25 feet 5 inches
- Exterior height 11 feet 3 inches
- Exterior width: 7 feet 11 inches
- Fresh/Gray/Black: 35/32/32 gallons
- LP Tank Capacity: 56 pounds
- Awning: 15 feet 6 inches
Benefits
- MB Sprinter fully loaded with safe driving tech
- Two slides enhance living space
Challenges
- Bathroom could be a tight squeeze for larger RVers
- Some buyers may not prefer split mattress in bedroom
Best For
- Campers who enjoy exceptional driving and safety features
- Leaner RVers who can more easily navigate the floorplan
The RV Trader Process
RV Trader asked RV shoppers what was most important to them in their RV buying process. Potential buyers — like you — helped us to identify a list of six key areas that camping and travel enthusiasts always look at when they’re searching for the perfect RV: sleeping space, bathroom, living area, four-season capabilities, and storage space.
The RV Trader team then got to work providing you with an honest and unbiased evaluations. And that’s where I come in. I’m Tony Barthel, RV expert and enthusiast. I provide an honest look at RVs from RV industry insider perspective. That way, you can learn the good, the bad, and the intriguing about any RVs I review. I inspect each RV with the buyer’s perspective at the forefront. And I always evaluate those six key areas that buyers have told us that they have in mind.
So, that said, let’s take a closer look at the 2024 Forest River Sunseeker 4200DSB.
Sleeping Space
Starting with the bedroom slide, the configuration here involves one of those split mattresses that are split in half and fold on top of itself. My wife always finds that the split is right at her hips which makes sleeping far less comfortable. So, this is something that I absolutely recommend that you test if you are in the market for this unit. The mattress might very well be just fine for you. Or it could be a deal (and back) breaker.
At the back wall of the bedroom is a full complement of drawers and cabinets so there is plenty of storage back here.
The model I saw had theater seats in the living area, but you could also choose a dinette option instead. If you choose a dinette, this space can sleep two, although I suspect that grade-school sleepers will be more comfortable here than those with a teacher’s stature.
At the front of the cabin, there is also a sleeping-space option above the cockpit. The model I saw featured the over-cab bunk which is also designed for two. (But you can also opt for something the company calls a Trekker cap, which is much lower in profile but doesn’t have the bunk.)
Bathroom
The Sunseeker 4200DSB is configured with a bathroom along the camp-side wall that takes about a third of the width of the camper. The bedroom takes the rest of the width and then extends further thanks to that second slide room.
The svelte rep from Sunseeker deftly walked back there to show off the space, but, if buyers are closer in physical build to me, they are going to have a bit of issue getting back there. (As someone who personally displaces a lot of pool water, my sensitivity to tight spaces is acute.) Also, if that space weren’t tight enough, the door to the bathroom only opens about 40 degrees when the bedroom slide is out. So, it’s a bit of a squeeze to get into the bathroom, even when the slide is out.
When the slide was in, our lanky rep had no problem getting into the bathroom, but I had to remain an observer. So, if this is the rig for you, make sure these spaces are easily accessible based on your own body build.
Living Area
There are a number of nice details in the interior of the Sunseeker 2400DSB, including the light switches and controls right at the entrance to the camper body. You can easily flip on the interior lights as you step inside. That’s also where the optional four-point auto-level controls are as well.
The model I saw was a transitional model between 2024 and 2025 and had some features that will ultimately be standard in forthcoming versions of this. This is also why the model designation on the exterior was 2400B, but on Forest River’s website it is listed as the 2400DSB.
This name change reflects that there are two slide rooms on the roadside of this rig rather than the single large slide room. In the forward slide, room is typically a U-shaped dinette, but the model I saw had optional power theater seats installed.
Kitchen
More and more, I’m seeing RV companies moving to induction cook tops which does make sense. The kitchen in the Sunseeker 2400DSB featured just a single induction cook top although, if you find yourself wanting another one, you can simply get those just about anywhere. I have a portable induction cook top that I use myself.
The only other cooking tool is a convection microwave oven which is below the counter. If you do have more youthful campers with you, you’ll find that, depending on their age, the buttons on the microwave are irresistible. I wish the microwave were in the overhead compartment instead for a variety of reasons, including this one.
Cabinet and drawer space aren’t bad in here, given the size of this rig. I was told that the pantry had to be made narrower to accommodate the two slides instead of the single larger slide, but this was also done for reliability. (The older single, large slide had presented issues with some buyers.)
Four-Season Capabilities
These little motorhomes with their generators are pretty decent for short-term boondocking. I write short-term because there is only 35 gallons of freshwater storage aboard so you might be able to stretch this for two to three days depending on your shower and coffee consumption habits.
I was told that the Mercedes-Benz platform is such that Forest River is not able to enclose the underside. That means that this would be tougher for cold weather camping, if that’s your choice.
One of the options that I thought was unique is that you can get one of these with no specific generator at all and with 13 kilowatts of lithium battery reserves aboard. That option also includes a 7,000-watt second alternator so now the motorhome’s diesel engine becomes your generator, and you have a tremendous amount of battery reserves.
This could be a good option if you like to camp where there are generator restrictions. Plus, it would be one fewer engine to maintain — small generators do have their own maintenance requirements.
Storage Space
One of the big considerations on any of these smaller motorhomes is cargo carrying capacity. Motorhomes aren’t light and many of these Sprinter chassis motorhomes have very little cargo carrying capacity. Remember a full 32-gallon water tank would add 256 pounds of weight. (This model’s freshwater tank has 35 gallons, for comparison.)
This is important to be aware of because that cargo carrying capacity includes any people, clothing, food and water. In many of these rigs, you can exceed the cargo carrying capacity with one passenger and some food in the fridge. The unit I saw had a cargo carrying capacity of about 971 pounds, which is respectable. (If you’re shopping for a smaller Class C pay close attention to this number.
As for exterior storage on this rig, there are a few smaller compartments. Plus, there’s also a single larger bay that is made of a plastic material and even has a drain if you use it for wet things like hoses and such. Neat.
Closing Notes on the Sunseeker 2400DSB
Lots of Driver Assistance
There are two areas in this rig where technology really stands out in this model: in the cab and chassis provided by Mercedes-Benz, and in the body of the camper itself.
I got to speak with a rep from Sunseeker who told me that Mercedes-Benz offers a variety of safety technologies in the Sprinter cab and chassis and that Sunseeker checks all the boxes when they spec out their orders from Mercedes-Benz. That means not only adaptive cruise control (where the rig can slow down if it senses vehicles ahead) but also front-collision assist which will help you avoid hitting something ahead of you.
There is also lane assist which helps you stay in your lane. But the thing that I was most intrigued with is something called crosswind assist. This essentially senses crosswinds and can use the braking system in the vehicle to help keep it on track. I would imagine that this alone would really make this much more pleasant to drive.
The Right Amount of Power
Speaking of driving, this features the new 2.0-liter, four-cylinder diesel engine mated to a nine-speed automatic transmission. If you’re not a gearhead, just know that this is a relatively small diesel engine, but that diesel engines have the benefit of having a lot of torque which is the twisting force used to get things moving.
So, while you might look at this size of engine on paper and wonder if you would have to get out and push on slight inclines, it’s actually rather capable. The Sunseeker 4200DSB purportedly has all the oomph (that’s a technical term) needed to keep up with traffic including merging onto highways.
Keeping on the technology theme, this RV has a system that allows you to control the included 4-kilowatt generator a variety of ways. You can have the generator automatically start if the system senses the interior temp of the rig goes above a certain point which would enable the air conditioning to come on.
You can also have the generator come on if the state of charge of the house batteries gets below a certain point. Another feature is that you can have the generator auto-start at specific intervals which is useful if you’re not using the rig much but still want to exercise the generator, which is best practice.
The Skinny on the Sunseeker 4200DSB
While this model had some technology that I really liked, this unit would be a challenge for me. And honestly, it’s because I’m someone who has more girth than my doctor would like. (However, Forest River offers a very similar floorplan in the Sunseeker 2400T, which has the large slide room with a Murphy bed so the interior space opens up significantly.)
I really like the useful technology on this rig in both safety and convenience features and recognize that a good deal of attention was paid to details. Overall, a nice package with some very useful features.
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