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CoolAir: Comfort inside → 1–2 hours RV Fuel Vault: Security outside → 8–15 minutes
Locking fuel door with tamper-resistant keyed lock Fits Ford E-350, E-450, F-550, F-600, F53, Workhorse, Ram 5500 Starting at $139.95
You Fixed Your RV AC Ductwork — Don't Forget About Fuel Security
5 min readJune 2026
You Fixed Your RV AC Ductwork — Don't Forget About Fuel Security
If you've invested in CoolAir ductwork, you understand the value of fixing factory shortcomings. Your RV's AC wasn't optimized — so you upgraded it. Your fuel system has the same problem: the factory left your cap completely exposed.
Factory Shortcomings Smart Owners Fix
| Problem | Factory Issue | Fix |
|---|---|---|
| Uneven AC cooling | Poor ductwork | CoolAir ($150–$300) |
| Exposed fuel cap | No fuel door | RV Fuel Vault ($139.95) |
| Tire safety | No monitoring | TPMS ($150–$400) |
| Power protection | No surge guard | Surge protector ($100–$400) |
Same Kind of Upgrade, Same Easy Install
Both bolt-on, basic tools, zero permanent modifications.
The RV Fuel Vault
[Complete your rig upgrades →](/#pre-order)
*Patent Pending · Made in Sarasota, Florida*
RV AC ductworkCoolAir RVRV comfort upgradesRV bolt on accessoriesmust have RV upgradesRV fuel securitybest RV upgrades 2026
Ready to Protect Your Fuel System?
The RV Fuel Vault™ — the first locking fuel door purpose-built for Class A, C & Super C motorhomes.
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