Product Description
The rear/aft-axle counterpart to FMSU-21DE, same lock-ring design and 22-gallon capacity. Cross-references to two Ford part numbers: E6UZ-9275-F and E8UF-9275-BA.
When a sending unit's float arm or resistor track wears out, the fuel gauge becomes a guessing game long before the tank actually runs dry — not something you want to discover on a back road. Getting the ohm range and pump configuration matched to your original is what makes this a real fix rather than a temporary patch.
Technical Specifications
- Capacity: 22 Gallons
- Ohm Range: Full 8.5-10.5, Empty 63-85
- Fuel Type: Diesel only
- Installation Type: Lock ring
- Includes new lock ring and gasket; does NOT include in-tank filter
- Replaces OEM part numbers E6UZ-9275-F, E8UF-9275-BA
Fitment
- Ford Full-Size Pickup (Rear/Aft Axle, 22-Gal, Diesel) | 1986-1991
Product Videos
Custom Field
MPN FMSU-21DER
Make Ford
Model Full-Size Pickup (Rear/Aft Axle, 22-Gal, Diesel) 1986-1991
Fitment Ford Full-Size Pickup (Rear/Aft Axle, 22-Gal, Diesel) | 1986-1991
