Fuel Cap Security for Your Thor Motorhome
Fits Class A (Hurricane, Windsport, A.C.E., Luminate, Outlaw, Resonate), Class C (Four Winds, Chateau, Quantum, Quantum ESpec, Geneva, Majestic on E-350 & E-450) & Super C Diesel

The Problem
- ✖Thor motorhomes have exposed, unlocked fuel caps — visible to anyone walking by
- ✖Generic locking caps don’t fit filler necks on Ford F53, F-550/F-600, E-350, or E-450
- ✖Fuel theft and contamination can cost thousands in repairs
- ✖No factory fuel security option comes standard on Thor motorhomes
The Solution
- Fits Thor Class A (Hurricane, Windsport, A.C.E., Luminate, Outlaw, Resonate on F53), Class C (Four Winds, Chateau, Quantum on E-450 PLUS Quantum ESpec, Geneva, Majestic on E-350), AND Diesel Super C
- High-strength fiber-filled polymer with tamper-resistant keyed lock
- Bolt-on install in 8–15 minutes — no modifications required
- Made in USA with Limited Lifetime Warranty and free shipping
Frequently Asked Questions
Fuel Cap Security for Thor Motorhomes
Thor Motor Coach is the largest RV manufacturer in the world, producing motorhomes in every class. The RV Fuel Vault fits the full Thor lineup, from the Class C Four Winds to the Class A Hurricane and Windsport. Protect your Thor with the locking fuel door the factory should have included.
Order Today — Starting at $139.95
Single Door, Set of 2, or 3-Pack · Free shipping · Limited Lifetime Warranty · 30-day guarantee
Order NowProudly Made in the USA · Patent Pending
