2017–2028 Dynamax Isata 6 Locking Fuel Door
The RV Fuel Vault is confirmed to fit the Dynamax Isata 6 on the Ford F-600 chassis. Here are the covered floor plans and the exact parts for your rig.
Covered floor plans
2027+ config: 2 driver-side diesel fuel caps (2 small doors) + relocated DEF fill on outside front, driver side (1 round door)
Retrofitted 2026: DEF fill moved to the outside front, driver side (by the driver door) — 2 small doors for the diesel caps + 1 round door for the relocated DEF fill
Factory setup (DEF fill not relocated): 2 Driver Side Diesel Fuel Caps
Factory setup (DEF fill not relocated): 2 fuel tanks — 2 small doors
See it on a Dynamax Isata 6 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 — 2 Small Standard & 1 Round-Pack
VerifiedRVFV-30012S1R
Set of 3 doors. 1 Standard Small & 1 Round Door, Ideal for Driver Side dual-tank and exposed Round DEF Tank Cap on Super C Rigs Security screws included. Designed for the 2027 Dynamax Isata 6
$479.95
Standard Small Fuel Cap Housing Bezel, Factory Replacement (2 Pack)
VerifiedRVFVB-9002S
Factory Replacement Fuel Housing Bezel, Small, Typically Super C on Ford F-550, F-600 or Dodge Ram 5500
$149.95
ViewSecurity Screw Pack — 2 Small + 1 Round (23 pc)
VerifiedRVFV-SS2S1R
Tamper-resistant security screws with Safety Torx Driver Bit — 23 screws for the 2 Small Standard & 1 Round door set (RVFV-30012S1R). Includes spares.
$59.95
RV Fuel Vault + Bezel Bundle — Small 2-Pack
VerifiedRVFV-BDL-2001S
Complete protection bundle: RV Fuel Vault Small Standard 2-Pack doors + matching Small Fuel Cap Housing Bezel 2-Pack. Save by bundling! Security screws included.
$459.90
ViewRV Fuel Vault — Small Standard-2 Pack
VerifiedRVFV-2001S
Set of 2 standard small doors. Ideal for Driver Side dual-tank Super C (F-550 or F-600) Rigs Security screws included. Fits standard exposed fuel caps. Security screws included.
$309.95
ViewSecurity Screw Pack — Double Pack (25 pc)
VerifiedRVFV-SS200
Tamper-resistant security screws with Safety Torx Driver Bit — 25 screws (24 + 1 extra). Each door requires 1 pack. (2 Packs) We include 1 extra screw because things can happen during installation — like stripping or breaking a screw while mounting add-on components.
$39.95
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