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White Item Between Cab and Truck Box

Brito

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I asked my dealer about this today and got a resounding “Yes! It’s supposed to be there!” Two mechanics and the service manager all agreed. So the next obvious question, “Why?” No one could tell me. But they were all certain its supposed to be there!??
 

pfenton

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Ford Ranger White Item Between Cab and Truck Box IMG_2210

Still no answer I guess but trying to search the part number did not really help either but the label was peeling so here it is for all to see. Paul ?
 

SubZombie

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Hi y'all, this part number MB3B-E403F12-BA with it's generic name is a " Spacer – Bed to Cab Alignment ", it is used during assembly of the vehicle, according to Ford " it is used to maintain the correct gap between the two structures, especially during factory assembly or to compensate for manufacturing tolerances, it's permanent factory part, not intended to be removed, this is the information i have as of now, i will update as soon as i get more information on the subject...cheers...:)...
There are so many threads that have explained what this is and you can also get an explanation from Chat GPT or google. So many threads about it we should have a sticky. Some people who have removed it have reported increased wind noise and chatter from the rear. Other people are hard of hearing and can't tell.

Ford Ranger White Item Between Cab and Truck Box Screenshot 2025-09-02 at 2.46.30 PM
 
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BriSco

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Anyone know if the 2025's have it?
 

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AssolMarandy

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What you are seeing is likely a piece of factory insulation or sound‑deadening material. Many trucks have small sheets of foam or plastic in gaps between the cab and bed to reduce noise, vibration, or heat. If it is loose, it is usually not a problem, and it is best to leave it in place. It does not affect the truck’s performance.
 

ShadowDragon24

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Anyone know if the 2025's have it?
Yes. my 2025 had it. and I took it out. no noticeable sound increase. but it was wet(never had rain in like 4 days) and it was rotten. it will just hold dirt and salt up against your paint. I went in through the bed access plug, I was trying to see where the rear cab access plug was to run my rear dashcam wire out into the bed for my cap. now that the cap blocks the rear camera, and it was right there. used a 90° oring pick and bitta fenaggling got it out. lol

Ford Ranger White Item Between Cab and Truck Box 20250906_100213


Ford Ranger White Item Between Cab and Truck Box Screenshot_20250919_160626_Gallery


Ford Ranger White Item Between Cab and Truck Box 20250906_100249


Ford Ranger White Item Between Cab and Truck Box 20250906_100210
 

Bruce

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It has been installed in Rangers since the 2019 versions. Only on Lariat and above models though. I questioned it in 2019 with dealer and he crawled under a std Ranger that was on the showroom floor and it didn't have it.
Had it on my 2019 Lariat. After 6 years, no rust, no excess dirt --- and I live in Minnesota were they dump about 5 tons of salt per mile per season.
 

BriSco

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It has been installed in Rangers since the 2019 versions. Only on Lariat and above models though. I questioned it in 2019 with dealer and he crawled under a std Ranger that was on the showroom floor and it didn't have it.
Had it on my 2019 Lariat. After 6 years, no rust, no excess dirt --- and I live in Minnesota were they dump about 5 tons of salt per mile per season.
My '24 XLT has it and our '19 and '21 base Rangers at O'Reilly have it.
 
 







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