2020–2027 Dynamax Isata 5 Locking Fuel Door
The RV Fuel Vault is confirmed to fit the Dynamax Isata 5 on the Ram 5500 chassis. Here are the covered floor plans and the exact parts for your rig.
Covered floor plans
Gas coach on Ram 5500 — single fuel tank — 1 small door + single-door security screw pack
See it on a Dynamax Isata 5 like yours
Real photos from Dynamax owners who installed The RV Fuel Vault on their own rig.
Found Scott and his company and immediately got on the list for the first batch of the RV Fuel Vault. Scott has been great and is passionate about solving problems like this one. Great people, company, and product. Jeff
Looks really good - installation was a little challenging on the front tank because the fuel fill is mounted on a metal plate not like the rear tank. Had to predrill the holes to accept the #12 screws. I ended up snapping 2 screws before the predrill. I really like the look and feel comfortable that the tanks won’t be messed with. Also like that they are keyed the same. Awesome - Thanks
What Dynamax owners say
Looks really good - installation was a little challenging on the front tank because the fuel fill is mounted on a metal plate not like the rear tank. Had to predrill the holes to accept the #12 screws. I ended up snapping 2 screws before the predrill. I really like the look and feel comfortable that the tanks won’t be messed with. Also like that they are keyed the same. Awesome - Thanks
Dynamax Isata 6 — 2026 Dynamax Isata 6
Found Scott and his company and immediately got on the list for the first batch of the RV Fuel Vault. Scott has been great and is passionate about solving problems like this one. Great people, company, and product. Jeff
Jeff B — 2027 Dynamax Isata 6 31KS
Parts that fit
RV Fuel Vault — Small Standard Single
VerifiedRVFV-1001S
Single small door for Super C, (F-550. F-600 or Dodge RAM 5500). Security screws included. Fits standard exposed fuel caps
$159.95
ViewSecurity Screw Pack — Single Door (13 pc)
VerifiedRVFV-SS100
Tamper-resistant security screws with Safety Torx Driver Bit — 13 screws (12 + 1 extra). Each door requires 1 pack. We include 1 extra screw because things can happen during installation — like stripping or breaking a screw while mounting add-on components.
$19.95
ViewStandard Small Fuel Cap Housing Bezel, Factory Replacement
VerifiedRVFVB-9001S
Factory Replacement Fuel Housing Bezel, Small, Typically Super C on Ford F-550, F-600 or Dodge Ram 5500
$74.95
ViewRV Fuel Vault + Bezel Bundle — Small Single
VerifiedRVFV-BDL-1001S
Complete protection bundle: RV Fuel Vault Small Standard Single door + matching Small Fuel Cap Housing Bezel. Save by bundling! Security screws included.
$234.90
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