Spectra FN856 Fuel Tank Filler Neck

Spectra FN856 Fuel Tank Filler Neck

The Spectra FN856 fuel tank filler neck is an OE-style replacement for select GM trucks and SUVs from 1995-1996. It is built for direct replacement on the upper section only and is engineered to match original equipment performance for proper fuel filling and tank access.

• Fuel tank filler neck for air and fuel delivery service
• Fits 1995-1996 Chevrolet Blazer, upper section only
• Fits 1995-1996 GMC Jimmy, upper section only
• Fits 1996 Oldsmobile Bravada, upper section only
• OE-style replacement for factory fuel filler neck service
• Part number FN856 for application matching and catalog lookup

Application Details

Compatible with 1995-1996 Chevrolet Blazer, upper section only; 1995-1996 GMC Jimmy, upper section only; and 1996 Oldsmobile Bravada, upper section only. This fuel tank filler neck is used to restore the connection between the fuel door area and the tank inlet, helping maintain a secure path for refueling on these GM applications. Part number FN856 is also referenced for the same application under 577946, 15712084, and TNKFN856.

Common Issues It May Address

• Corrosion or rust at the filler neck
• Fuel splashback during refueling
• Damaged or leaking filler neck tubing
• Restricted fuel flow at the tank inlet
• Failed original upper filler neck section

Installation Notes

Verify vehicle year, make, model, and filler neck configuration before installation. This listing applies to the upper section only and should be matched to the existing fuel system layout on the vehicle. Confirm fitment for your Chevrolet Blazer, GMC Jimmy, or Oldsmobile Bravada before service.

Quality Assurance

Spectra Premium states that its engineering, manufacturing processes, and quality control are used to produce fuel filler necks that meet or exceed original equipment performance for the parts they replace.