Spectra FG85A Fuel Tank Sending Unit
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Spectra

Spectra FG85A Fuel Tank Sending Unit

Brand Spectra FG85A
Fits Chevrolet and GMC · 68 vehicles

OE-style replacement. Built for direct fuel level sensing in listed truck fuel systems.

Quality-controlled production. Spectra Premium applies engineering and manufacturing controls to this sender.

Part number FG85A. Easy catalog matching for the correct fuel tank sending unit.

Cross-references 692222, 19179535 and 25027657 for the same application. See all 6.

$68.19Free shipping
In stock · usually ships same day before 1pm CST
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Order total $68.19
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Fuel Tank Sending Unit Overview

The Spectra FG85A fuel tank sending unit is an OE-style replacement for select Chevrolet and GMC heavy-duty trucks. It is built for direct fuel level sensing in the tank and follows the original equipment application for the listed fitments.

Fits 1990-2002 Chevrolet C2500, C3500, C3500HD, K2500, K3500 and GMC C3500, C3500HD, K2500, K3500, with driver side mount applications. This part cross-references Monroe Shocks & Struts (e.g., 692222, FLS1083) for the same application.

Key Features

  • OE-style fuel tank sending unit for listed Chevrolet and GMC truck applications
  • Built with Spectra Premium engineering and manufacturing controls
  • Supports accurate fuel level reporting from the tank
  • Designed for driver side mount applications with 22-gallon tank fitments
  • Part number FG85A for easy identification and catalog matching

Detailed Description

The Spectra FG85A is a fuel tank sending unit made for heavy-duty Chevrolet C/K and GMC C/K truck platforms. It is intended for vehicles that use the specified driver side tank configuration, including applications with 22-gallon tanks and, on some GMC C3500HD and Chevrolet C3500HD listings, three-outlet tank setups. Spectra Premium states that its engineering, manufacturing technology, and quality control are used to meet or exceed original equipment performance standards. The FG85A is a practical replacement when the fuel gauge signal becomes unreliable or the original sender no longer provides consistent tank level information.

Common Issues It Can Solve

  • Inaccurate fuel gauge readings
  • Fuel level signal dropouts or erratic gauge movement
  • Sender wear from age and tank exposure
  • Replacement needs during fuel tank service
  • Restoration of proper fuel level reporting after original unit failure

Installation Notes

Verify the tank configuration, outlet count where applicable, and driver side mount before ordering. The fitment notes specify that the fuel tank must be inspected and cleaned prior to installation, and the fuel tank lock ring and seal must be replaced or warranty coverage is void. Confirm the application against the vehicle’s original sender layout before installation.

Quality Assurance

Spectra Premium uses engineering, manufacturing technology, and quality control processes to produce fuel tank sending units that meet or exceed original equipment performance for the listed applications. Part number FG85A is cataloged for direct replacement use on the specified Chevrolet and GMC truck fitments.

Related reading

This part fits 68 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelBody TypeLitersCylindersNotes
2002ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2002GMCC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; 3 Outlets; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2001ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2001GMCC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; 3 Outlets; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2000ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2000ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2000ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2000GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
2000GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1999ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1999ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1999ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1999GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1999GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1998ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1998ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1998ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1998GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1998GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; 3 Outlets; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997GMCC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; 3 Outlets; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997GMCK2500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1997GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1996ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1996ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; 3 Outlets; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1996ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1996GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1996GMCC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; 3 Outlets; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1996GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1995ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1995ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1995ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1995GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1995GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1994ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1994ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1994ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1994GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1994GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993ChevroletC3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993ChevroletK3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993GMCC3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1993GMCK3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992ChevroletC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992ChevroletC3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992ChevroletC3500HD—6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992ChevroletK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992ChevroletK3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992GMCC3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992GMCC3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992GMCK3500Cab & Chassis6.5LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1992GMCK3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1991ChevroletC2500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1991ChevroletC3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1991ChevroletK2500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1991ChevroletK3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1990ChevroletC2500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1990ChevroletC3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1990ChevroletK2500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
1990ChevroletK3500Cab & Chassis6.2LV8Driver Side Mount; 22 Gallons Tank; Failure To Replace The Fuel Tank Lock Ring And Seal Will Void Warranty; Fuel Tank Must Be Inspected And Clean Prior To Installation
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
6922221917953525027657FLS1083SU492TNKFG85A