Spectra GM20D Fuel Tank

Brand Spectra GM20D
Fits Buick, Oldsmobile, and Pontiac · 13 vehicles

OE direct replacement. Meets or exceeds original equipment performance.

Fuel tank engineered with advanced manufacturing and quality control.

Cross-references OSC 1755, Spectra Premium GM20D and 576340 for the same application. See all 11.

$184.92Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $184.92
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Spectra GM20D Fuel Tank for GM Full-Size Cars

The Spectra GM20D fuel tank is an OE-style replacement for select Buick, Oldsmobile, and Pontiac full-size sedans from 1996-1999. Built for direct fitment and consistent fuel storage performance, it serves as a replacement fuel tank for LeSabre, 88, Bonneville, and 98 applications.

Key Features

  • Direct replacement fuel tank for select GM vehicles
  • OE-level engineering and manufacturing controls
  • Built to match original equipment performance requirements
  • Fits 1996-1999 Buick LeSabre, N/A
  • Fits 1996-1999 Oldsmobile 88, N/A
  • Fits 1996-1999 Pontiac Bonneville, N/A
  • Fits 1996 Oldsmobile 98, N/A
  • Fuel tank dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in.

Detailed Description

Built for select Buick LeSabre, Oldsmobile 88, Pontiac Bonneville, and Oldsmobile 98 models, the Spectra GM20D fuel tank is a replacement part for restoring proper fuel storage on compatible GM sedans. Spectra Premium uses controlled engineering and manufacturing processes to produce a tank that meets original equipment performance expectations for the listed applications. This part cross-references OSC 1755 for the same application.

Common Problems This Part Can Address

  • Corrosion or rust damage in the original fuel tank
  • Fuel leaks caused by tank deterioration
  • Cracked or weakened tank material
  • Fuel storage issues on aging Buick LeSabre, Oldsmobile 88, or Pontiac Bonneville models
  • Replacement needs after tank damage or contamination

Installation Notes and Tips

Verify the tank dimensions and vehicle application before installation. Confirm the fuel system layout on your Buick LeSabre, Oldsmobile 88, Pontiac Bonneville, or Oldsmobile 98 and compare the original tank to the GM20D before removal. Follow factory service procedures for safe fuel system service and proper sealing at the lock ring area.

Quality Assurance

Spectra Premium fuel tanks are manufactured with engineering and quality control processes aimed at matching original equipment performance for the listed applications.

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
1999BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1999Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1999PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1998BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1998Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1998PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1997BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1997Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1997PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1996BuickLeSabre3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1996Oldsmobile883.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1996Oldsmobile983.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
1996PontiacBonneville3.8LV6N/AFuel Tank - Dimensions: 40-1/8 in. x 28-1/2 in. x 11-1/2 in. with Lock Ring Kit Included
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
OSC — 1755Spectra Premium — GM20D57634025624842FLGM20DFT546IGM20DKGM20DRGM20DTGM20DTNKGM20D