Adding Seats to Cargo Van

mve

2019 Crew 4x4 HR
Paging @fireball05 and @mve
Great info. I was able to flush out the part number and confirmed the crew has this reinforcement piece and the cargo does not.

The Mercedes-Benz part number is 9107304800 and catalogued as “Reinforcement Beam”. Retail cost is approx $284. Per MB attachment requires 3 M8-16 or M8-20 screws.
that sounds correct (3 bolts is what I remember). Unfortunately I didn't take down the part number, so glad you were able to find it and share here.
 

Kajtek1

2015 3500 X long limo RV
My limo, that I converted come with aftermarket recliners, that I am advertising for sale https://sprinter-source.com/forums/index.php?threads/95226/
Doing the work on 2 vans, I noticed that factory bolts holding the seat rail are welded into subframe and you can't update the design later.
My limo was professionally build in Las Vegas and 1/2" bolts holding the seat had huge shims under the floor.

 
that sounds correct (3 bolts is what I remember). Unfortunately I didn't take down the part number, so glad you were able to find it and share here.
Did you happen to notice any other extra reinforcement beams anywhere else? Like inside the body on opposite side (driver side). I spent some time discussing this with a very knowledgeable parts advisor at MB and he didn’t see anything else in his system. Thanks
 

JMG_Systems_Eng

Seating Systems Engineer
We will be at the Adventure Van Expo in Big Bear on Oct 16 -17 and will have a number of seats and mounting systems on display. We will also have at least 3 different rigs in our booth with different seating solutions installed in them. There will also be a few other rigs in the show with our seats in them. Please stop by to check out the seating solutions we have designed for different applications, and chat. We were just at the Lake Tahoe AVE last weekend.
AVE-Tahoe 2021.jpg
 

AK4915

New member
Just ordered my slider reinforcement bar for my '21 170 4x4. Here are all of the part numbers needed.

Reinforcement Bar: 910-730-48-00
Mounting Screws(x3): 126-990-03-12
Is there any sort of reinforcement for the driver side behind the drivers seat? I’m thinking of adding a seat behind the drivers.
 

w15p

2019 144 HR 4x4
Just ordered my slider reinforcement bar for my '21 170 4x4. Here are all of the part numbers needed.

Reinforcement Bar: 910-730-48-00
Mounting Screws(x3): 126-990-03-12
I ordered these part numbers. I can confirm the reinforcement bar, but the mounting screws are not 126-990-03-12 -- those are steering wheel bolts (and they're fricking huge).

I used M8-1.25 hex bolts with flat washers and lock washers (and loctite blue) - they were ~20mm in length, but you could probably use longer with no issue.

Putting the bar in without any reference is fun :) but if you orient the 3 threaded holes facing the cabin and the the wavy extension pointing down, it fits, nearly resting on the bottom of the door (the bolt holes in the door frame also become obvious then). Feed it into the front first and then once it's in, move it back until the bolt holes are aligned.

I should have taken pictures but I did not.
 

Eric B

Well-known member
Regarding that door reinforcement bar which concerned peoples are adding to their cargo van slider doors ...

If another multi-thousand pound vehicle happens to T-bone you, that bolted-in bar is not going to do a hell of a lot to protect the contents on your 2nd row passenger seat / bench ... just saying ... it's not because some government regulation made it standard issue on a passenger van that you're X times safer in a passenger than in a cargo ... and as mentioned above, no such reinforcement exists on the side opposite the slider door ... so ... maybe save the $300 it costs and apply to something else ?

if you're really worried, have your local motorsports fab shop build you a proper welded cage with DOM tubing ... but you'd definitely be the outlier ... on the plus side, maybe the kids will get a kick out of the monkey bars feature you just added in ...


of course, to each his own ...

remember there are no curtain airbags in a passenger van for the 2nd, 3rd, or 4th row seating either ...
 

Attachments

Last edited:

Top Bottom