1987-1989 Ford F-350 & F-Super Duty Cab-Chassis 6.9L 7.3L Diesel Fuel Sending Unit - OEM Plastic Rear Tank (FMSU-12DEP)

1987-1989 Ford F-350 & F-Super Duty Cab-Chassis 6.9L 7.3L Diesel Fuel Sending Unit - OEM Plastic Rear Tank (FMSU-12DEP)

Item# FMSU-12DEP
List Price:
$145.95
Our Price:
$104.95
Availability: Usually ships the next business day
descriptionMTS Fuel System Components

Part Number: FMSU-12DEP (MTS)

This Product is not made in China.

High-quality MTS replacement fuel tank sending unit designed for **1987-1989 Ford F-350 & F-Super Duty Cab-Chassis** models equipped with the **OEM Plastic Rear Fuel Tank** and 6.9L or 7.3L Diesel engines.

Fitment Information

  • Ford F-350 Cab-Chassis – 1987, 1988, 1989 (6.9L & 7.3L Diesel)
  • F-Super Duty Cab-Chassis – 1987, 1988, 1989 (6.9L & 7.3L Diesel)
  • Tank Size: OEM Plastic Rear Tank
  • Engine: 6.9L & 7.3L Diesel
  • Note: This unit is specifically for the OEM Plastic Rear Tank on Cab-Chassis models.

Product Features

  • Manufactured by MTS
  • Correct ohm range for accurate factory gauge performance
  • Reliable float arm and sender mechanism
  • Ohm Range: Full 155-165, Empty 5-15
  • 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 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 configuration.

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