1990–2027 Thor Motor Coach Magnitude Locking Fuel Door
The RV Fuel Vault is confirmed to fit the Thor Motor Coach Magnitude on the Ford E-450, Ford F-550 / F-600 chassis. Here are the covered floor plans and the exact parts for your rig.
Covered floor plans
Fits all Thor Omni and Magnitude Super C diesel floorplans on the Ford F-550 / F-600 chassis. Requires removal of the existing factory-installed, non-locking painted plastic fuel doors before installation.
2026 Thor Magnitude GA31 on the Ford E-450 gas chassis. Takes one large single door (RVFV-1002L); the fuel bezel screws in on the passenger side.
Parts that fit
RV 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
ViewRV Fuel Vault — Large Standard Single
VerifiedRVFV-1002L
Oversized single door for Class C (E-350/E-450), Class A (F-53/Workhorse), and motorhomes with larger fuel cap openings. Security screws included.
$169.95
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 Large Fuel Cap Housing Bezel, Factory Replacement
VerifiedRVFVB-9002L
Factory Replacement Fuel Cap Housing Bezel, Large. Fits large single fuel-fill housings on Class A gas coaches such as the Ford F53 chassis.
$89.95
ViewRV Fuel Vault + Bezel Bundle — Large Single
VerifiedRVFV-BDL-1002L
Complete protection bundle: RV Fuel Vault Large Standard Single door + matching Large Fuel Cap Housing Bezel. Save by bundling! Security screws included.
$259.90
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