Fuel Cap Security for Your Dynamax Isata 6 & Isata 5
Purpose-built for the Dynamax Isata 6 on Ford F-600 and the Isata 5 on Ram 5500
The Problem
- ✖Your Dynamax Isata 6 or Isata 5 has exposed, unlocked fuel caps
- ✖Generic locking caps don’t fit the commercial filler necks on your chassis
- ✖Fuel siphoning and contamination are real risks at campgrounds and overnight stops
- ✖No OEM fuel security option exists for Dynamax motorhomes
The Solution
- Engineered specifically for Dynamax Isata 6 & Isata 5 fuel cap configuration
- High Impact Reinforced Material with tamper-resistant keyed lock
- Bolt-on install in 8–15 minutes — no modifications required
- Made in USA with Limited Lifetime Warranty
Frequently Asked Questions
Locking Fuel Door for Dynamax Super C Motorhomes
Dynamax builds the Isata 6 Super C on the Ford F-600 chassis and the Isata 5 on the Ram 5500 gas chassis. The RV Fuel Vault is purpose-built for both: 1 small door for the Isata 5, 2 small doors for the factory Isata 6, and the 3-pack (2 small + 1 round) for the relocated DEF fill on 2026 retrofit and 2027–2028 Isata 6 coaches.
Order Today — Starting at $159.95
Single Door, Set of 2, or 3-Pack · Limited Lifetime Warranty · 30-day guarantee
Order NowProudly Made in the USA · Patent Pending