1990-1991 Ford F-250 F-350 19 Gallon Diesel Fuel Sending Unit - Rear Tank (FMSU-7DER)

1990-1991 Ford F-250 F-350 19 Gallon Diesel Fuel Sending Unit - Rear Tank (FMSU-7DER)

Item# FMSU-7DER
List Price:
$167.95
Our Price:
$96.95
Availability: Usually ships the next business day
descriptionMTS Fuel System Components

Part Number: FMSU-7DER (MTS)

This Product is not made in China.

High-quality MTS replacement fuel tank sending unit designed for **1990-1991 Ford F-250 & F-350** trucks equipped with the **19 Gallon Rear Tank** and 7.3L Diesel engine.

Fitment Information

  • Ford F-250 – 1990, 1991 (7.3L Diesel)
  • Ford F-350 – 1990, 1991 (7.3L Diesel)
  • Tank Size: 19 Gallon Rear Tank
  • Engine: 7.3L Diesel
  • Note: This unit is specifically for the 19 Gallon Rear Tank. Does NOT fit front or side tank models.

Product Features

  • Manufactured by MTS
  • Correct ohm range for accurate factory gauge performance
  • Reliable float arm and sender mechanism
  • Includes new gasket (where applicable)

Common Symptoms This Part Fixes

  • Fuel gauge stuck on empty or full
  • Inaccurate or fluctuating fuel level readings
  • Check engine light related to fuel level sensor

Installation Recommendations

  • Best replaced together with a new fuel tank
  • Replace tank lock ring and gasket at the same time
  • Inspect wiring and connector for corrosion
  • Professional installation recommended

Why Buy From Gas Tank Depot?

  • 15+ years specializing in Ford 7.3L Diesel fuel systems
  • Accurate fitment information
  • Competitive pricing
  • Fast shipping with tracking
  • Knowledgeable customer support

Need help confirming fitment? Contact us with your exact year and tank location.

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