Product Description
FJ-40 values keep climbing, and getting the fuel system right matters for a correct restoration. This tank is a direct, under-the-passenger-seat replacement built specifically for the September 1973 through December 1978 production window — not a broader "fits most FJ40s" approximation. It requires an in-line fuel filter since there's no built-in bowl, and it ships with a new sending unit gasket.
A pinhole rust leak in an old steel tank rarely stays a pinhole for long, and by the time it's obvious, the surrounding metal is usually too thin to weld safely. This polyethylene replacement sidesteps rust entirely, so the installation notes below are what actually determines whether this swap goes smoothly.
Technical Specifications
- Capacity: 12 Gallons
- Material: High-Density Cross-Linked Polyethylene
- Dimensions: 22" x 27" x 9"
- Position: Passenger's side, under seat
- Includes new sending unit gasket
Fitment
- Toyota Land Cruiser FJ-40 | 9/1973-12/1978
⚠ Compatibility Note: No drain plug. Requires an in-line fuel filter (not included) since this tank has no built-in fuel bowl.
✓ Appearance Note: Because each tank is custom molded, you may occasionally notice minor cosmetic surface bubbles left over from the molding process. This is purely cosmetic, has no effect on performance or durability, and doesn't occur on every unit — every tank is individually pressure-tested before it ships to confirm a leak-free seal.
⚠ Order Notice: MTS builds each fuel tank to order rather than pulling from mass-produced stock. Please allow a 7–10 business day lead time for manufacturing and individual pressure testing before your tank ships.
Product Videos
Custom Field
Make TOYOTA
Model FJ-40 LAND CRUISER 12-GAL
MPN 6040
Fitment Toyota Land Cruiser FJ-40 | 9/1973-12/1978
