HomeAir and Fuel Delivery > Fuel StorageSpectra GM20B Fuel Tank
Part #: GM20B

Spectra GM20B Fuel Tank

⚙️ 53 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Pontiac, Buick, Oldsmobile, and Cadillac, Bonneville, Park Avenue, LeSabre, 88, 98, 60 Special, Commercial Chassis, DeVille, Fleetwood, Delta 88, and Electra
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Reliable Fuel Tank Replacement for Classic GM Vehicles

The Spectra GM20B fuel tank is designed to provide a dependable fuel storage solution for select Buick, Cadillac, Oldsmobile, and Pontiac models. Engineered to meet OEM specifications, this fuel tank ensures proper fitment and performance for vehicles like the Buick LeSabre and Cadillac DeVille.

  • Compatible with Buick 60 Special, LeSabre, and Park Avenue models
  • Fits Cadillac 88, 98, DeVille, and Fleetwood vehicles
  • Suitable for Oldsmobile Delta 88 and Commercial Chassis
  • Designed for Pontiac Bonneville and other specified models
  • Durable construction for long-lasting fuel storage

Product Details and Compatibility

The Spectra GM20B fuel tank is manufactured to match the original equipment specifications for a range of GM vehicles, including Buick, Cadillac, Oldsmobile, and Pontiac. This fuel tank is engineered to fit models such as the Buick 60 Special and Park Avenue, Cadillac 88 and Fleetwood, Oldsmobile Delta 88, and Pontiac Bonneville. Its design ensures proper fuel containment and integration with the vehicle’s fuel delivery system, maintaining safety and reliability.

Common Applications and Problem Resolution

  • Replacement for rusted or damaged fuel tanks
  • Solution for fuel leaks or contamination issues
  • Restores proper fuel capacity and delivery
  • Addresses fuel tank corrosion in older GM models
  • Ensures compliance with fuel system integrity standards

Installation Notes and Tips

Installation of the Spectra GM20B fuel tank should be performed by a qualified technician familiar with GM fuel systems. It is important to verify vehicle compatibility using the make and model information before installation. Proper handling and safety precautions should be observed to prevent fuel spills and ensure secure mounting. Replacing fuel lines and seals during installation is recommended to maintain system integrity.

Quality Assurance and Warranty Information

Spectra fuel tanks are manufactured under strict quality control standards to meet or exceed OEM requirements. The GM20B part number is backed by a limited warranty covering defects in materials and workmanship. This warranty provides assurance of the product’s durability and performance when installed according to manufacturer guidelines.

This part fits 53 vehicles. Search below:

YearMakeModelBody TypeDrive TypeLitersCylindersPositionNotes
1997PontiacBonneville3.8LV6N/A40-1/8 in. x 28-1/2 in. x 11-1/2 in.; Lock Ring Kit Included; w/o Hole On Top Of the Tank For Pressure Sensor
1996BuickPark Avenue3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1996PontiacBonneville3.8LV6N/A40-1/8 in. x 28-1/2 in. x 11-1/2 in.; Lock Ring Kit Included; w/o Hole On Top Of the Tank For Pressure Sensor
1995BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1995BuickPark Avenue3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1995Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1995Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1995PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1994BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1994BuickPark Avenue3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1994Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1994Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1994PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993BuickPark Avenue3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993Cadillac60 Special4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993CadillacCommercial Chassis4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993CadillacDeVille4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1993PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992BuickPark Avenue3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992CadillacCommercial ChassisFWD4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992CadillacDeVille4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992CadillacFleetwood4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1992PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991BuickPark Avenue3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991CadillacCommercial Chassis4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991CadillacDeVille4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991CadillacFleetwood4.9LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991OldsmobileDelta 883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1991PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990BuickLeSabreSedan3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990BuickLeSabreCoupe3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990CadillacCommercial Chassis4.5LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990CadillacDeVille4.5LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990CadillacFleetwood4.5LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990OldsmobileDelta 883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1990PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989BuickLeSabreSedan3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989BuickLeSabreCoupe3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989CadillacCommercial Chassis4.5LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989CadillacDeVille4.5LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989CadillacFleetwood4.5LV8N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989OldsmobileDelta 883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1989PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

14951525156325625215576338576339FLGM20BFT545IGM20BKGM20BKGM20CRGM20BRGM20CTGM20BTNKGM20B

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.