1978-82 Chevrolet Blazer, GMC Jimmy, 1978-81 Chevrolet, GMC Suburban, Fuel Tank Sending Unit, 3-Line, With Evaporative Emissions Control, Without Fuel Return Line, For 31, 40 Gallon Fuel Tank
$85.99 ea
NEWARRIVING SOONEstimated Ship Date 09/01/2026 (If Ordered Today)19 Available from our supplier as of 08/13/2026
Reproduction 3-line fuel sending unit for 1978-82 Chevrolet Blazer, GMC Jimmy, and 1978-81 Chevrolet and GMC Suburban models with applicable 31-gallon, 40-gallon fuel tanks. Manufactured to factory specifications for proper fit and function, this sending unit features a 0-90 ohm resistance range for compatibility with the factory fuel gauge and three outlets for the applicable fuel and vapor connections. An ideal replacement for a worn, corroded, or inoperative sender that can cause inaccurate or intermittent fuel level readings. Comes complete with the fuel sender, gasket, and float. Replaces GM part number 25001485.
Features and Benefits:
Helps restore accurate and consistent fuel gauge operation
Manufactured to factory specifications for proper fit and function
Replaces a worn or inoperative sender that can cause inaccurate fuel level readings
3-line configuration accommodates applicable factory fuel and vapor connections
Correct configuration for applicable 31 and 40-gallon fuel tanks without a fuel return line
Additional Information:
Application: Fuel tank sending unit
Fuel Tank Capacity: 31, 40 gallons
Resistance Range: 0-90 ohms (Empty-Full)
Configuration: 3 outlets
Fuel Return Line: No
Connection: 1/4" barbed fitting
Connection: 3/8" barbed fitting
Connection: 5/8" barbed fitting
Spectra Premium Part Number: FG12HM
Replaces GM part number: 25001485
Includes fuel sender, gasket, and float
Sold individually
Applications for 31, 40-Gallon Fuel Tank-equipped: Blazer/Jimmy/Suburban with Evaporative Emissions Controls (EEC)
1978-80 Blazer/Jimmy 2wd 1/2-3/4 ton 305ci or 350ci w/Manual Transmission
1978-82 Blazer/Jimmy 1/2 ton with 6-cylinder
1981 Blazer/Jimmy 1/2-3/4 ton with 6-cylinder
1978-79 Suburban 2wd 1/2-3/4 ton 305ci or 350ci w/Manual Transmission
1978-80 Suburban 1/2 ton with 6-cylinder
1980 Suburban 2wd 3/4 ton 350ci w/Manual Transmission
1981 Suburban 1/2-3/4 ton with 6-cylinder
Note: For applicable models with a 31 or 40-gallon fuel tank, 3-line sending unit, and without a fuel return line. Verify fuel tank capacity, engine, transmission, emissions equipment, and sending unit configuration before ordering.
Vehicle Fitment:
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
1978-82 Chevrolet Blazer, GMC Jimmy, 1978-81 Chevrolet, GMC Suburban, Fuel Tank Sending Unit, 3-Line, With Evaporative Emissions Control, Without Fuel Return Line, For 31, 40 Gallon Fuel Tank:
IMPORTANT: Electrical items are covered by a 30 day EXCHANGE ONLY WARRANTY. There are no returns or refunds on such items.
