Home› Air and Fuel Delivery > Fuel Storage› Spectra FN977 Fuel Filler Neck
Spectra FN977 Fuel Filler NeckOE Quality 60-Day Returns
Part #: FN977

Spectra FN977 Fuel Filler Neck

69 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$113.41Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, S10, Sonoma, Syclone, and S15
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all Fuel Filler Neck options

Overview of Spectra Fuel Tank Filler Neck FN977

The Spectra FN977 fuel tank filler neck is designed specifically for Chevrolet and GMC trucks, including the S10, S15, and Sonoma models. This component ensures a secure and reliable connection between the fuel filler cap and the fuel tank, maintaining proper fuel delivery and preventing leaks.

  • Compatible with Chevrolet S10, S15, and GMC Sonoma models
  • Durable construction for long-lasting performance
  • Direct replacement part number FN977 for easy identification
  • Designed to maintain proper fuel system sealing
  • Corrosion-resistant materials to withstand fuel exposure

Detailed Product Description

The Spectra FN977 fuel tank filler neck is engineered to meet OEM specifications for Chevrolet S10, S15, and GMC Sonoma trucks. This fuel storage component connects the fuel filler opening to the fuel tank, allowing for safe and efficient refueling. Its robust design helps prevent fuel vapor leaks and contamination, which can affect vehicle performance and emissions. The part number FN977 ensures compatibility and simplifies the replacement process for these specific truck models.

Common Applications and Issues Addressed

  • Replacement for cracked or damaged fuel filler necks
  • Eliminates fuel odors caused by leaks around the filler neck
  • Prevents fuel spillage during refueling
  • Resolves issues with fuel cap not sealing properly
  • Helps maintain proper fuel system pressure and emissions control

Installation Notes and Tips

Installation of the Spectra FN977 fuel tank filler neck requires basic mechanical skills and tools. It is recommended to work in a well-ventilated area and ensure the vehicle is cool before starting. Remove the old filler neck carefully to avoid damaging surrounding components. Verify that all clamps and seals are properly tightened during installation to prevent leaks. Consult the vehicle’s service manual for torque specifications and detailed instructions.

Quality Assurance and Warranty

Spectra manufactures the FN977 fuel tank filler neck to meet industry standards for durability and fitment. While specific warranty details may vary, Spectra parts typically come with a limited warranty against defects in materials and workmanship. This ensures that the part performs reliably when installed on compatible Chevrolet S10, S15, and GMC Sonoma trucks.

This part fits 69 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1993ChevroletS104.3LV6N/A
1993ChevroletS103.1LV6N/A
1993ChevroletS102.8LV6N/A
1993ChevroletS102.5LL4N/A
1993GMCSonoma4.3LV6N/A
1993GMCSonoma2.8LV6N/A
1993GMCSonoma2.5LL4N/A
1992ChevroletS104.3LV6N/A
1992ChevroletS103.1LV6N/A
1992ChevroletS102.8LV6N/A
1992ChevroletS102.5LL4N/A
1992GMCSonoma4.3LV6N/A
1992GMCSonoma2.8LV6N/A
1992GMCSonoma2.5LL4N/A
1991ChevroletS104.3LV6N/A
1991ChevroletS103.1LV6N/A
1991ChevroletS102.8LV6N/A
1991ChevroletS102.5LL4N/A
1991GMCSonoma4.3LV6N/A
1991GMCSonoma2.8LV6N/A
1991GMCSonoma2.5LL4N/A
1990ChevroletS104.3LV6N/A
1990ChevroletS102.8LV6N/A
1990ChevroletS102.5LL4N/A
1990GMCS154.3LV6N/A
1990GMCS152.8LV6N/A
1990GMCS152.5LL4N/A
1989ChevroletS104.3LV6N/A
1989ChevroletS102.8LV6N/A
1989ChevroletS102.5LL4N/A
1989GMCS154.3LV6N/A
1989GMCS152.8LV6N/A
1989GMCS152.5LL4N/A
1988ChevroletS104.3LV6N/A
1988ChevroletS102.8LV6N/A
1988ChevroletS102.5LL4N/A
1988GMCS154.3LV6N/A
1988GMCS152.8LV6N/A
1988GMCS152.5LL4N/A
1987ChevroletS102.8LV6N/A
1987ChevroletS102.5LL4N/A
1987GMCS152.8LV6N/A
1987GMCS152.5LL4N/A
1986ChevroletS102.8LV6N/A
1986ChevroletS102.5LL4N/A
1986GMCS152.8LV6N/A
1986GMCS152.5LL4N/A
1985ChevroletS102.8LV6N/A
1985ChevroletS102.5LL4N/A
1985ChevroletS102.2LL4N/A
1985ChevroletS101.9LL4N/A
1985GMCS152.8LV6N/A
1985GMCS152.5LL4N/A
1985GMCS152.2LL4N/A
1985GMCS151.9LL4N/A
1984ChevroletS102.8LV6N/A
1984ChevroletS102.2LL4N/A
1984ChevroletS102.0LL4N/A
1984ChevroletS101.9LL4N/A
1984GMCS152.8LV6N/A
1984GMCS152.2LL4N/A
1984GMCS152.0LL4N/A
1984GMCS151.9LL4N/A
1983ChevroletS102.8LV6N/A
1983ChevroletS102.2LL4N/A
1983ChevroletS102.0LL4N/A
1983ChevroletS101.9LL4N/A
1982ChevroletS102.8LV6N/A
1982ChevroletS101.9LL4N/A

* 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:

14062977577874FNGM040TNKFN977

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

Related Articles