HomeAir and Fuel Delivery > Fuel StorageSpectra FN994 Fuel Filler Neck
Part #: FN994

Spectra FN994 Fuel Filler Neck

⚙️ 16 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$147.10Free 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, Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, and Sierra 3500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Spectra Fuel Tank Filler Neck FN994

The Spectra FN994 fuel tank filler neck is designed for reliable fuel delivery in heavy-duty trucks. Engineered to fit Chevrolet and GMC models, this component ensures proper fuel system function and durability.

  • Compatible with Chevrolet Silverado 2500 HD and 3500 models
  • Fits GMC Sierra 2500 HD and 3500 trucks
  • Durable construction for long-lasting performance
  • Direct replacement for original fuel tank filler neck
  • Part number FN994 for precise identification

Detailed Product Description

The Spectra FN994 fuel tank filler neck is a critical component in the fuel storage system, providing a secure and leak-free connection between the fuel tank and the fuel filler pipe. Designed specifically for Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 models, this part ensures compatibility and proper fitment. Manufactured to meet OEM specifications, the FN994 maintains the integrity of the fuel system by preventing fuel vapor leaks and contamination. Its robust design withstands the rigors of heavy-duty use, making it suitable for trucks that require dependable fuel delivery components.

Common Applications and Issues Addressed

  • Replacement for damaged or corroded fuel tank filler necks
  • Resolves fuel leaks around the filler area
  • Prevents fuel vapor escape and environmental contamination
  • Addresses issues with fuel tank refilling difficulties
  • Restores proper fuel system sealing and safety

Installation Notes and Tips

  • Ensure vehicle compatibility with Chevrolet Silverado 2500 HD, 3500, GMC Sierra 2500 HD, or 3500 before installation
  • Inspect surrounding fuel system components for wear or damage during replacement
  • Use appropriate tools to avoid damage to the filler neck or fuel tank
  • Follow manufacturer torque specifications for secure installation
  • Check for leaks after installation and before vehicle operation

Quality Assurance and Warranty

Spectra manufactures the FN994 fuel tank filler neck to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details may vary, Spectra products typically come with a limited warranty against defects in materials and workmanship. This provides assurance of quality and support for your Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, or Sierra 3500 fuel system maintenance.

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2004ChevroletSilverado 2500 HD6.6LV8N/A
2004ChevroletSilverado 35006.6LV8N/A
2004GMCSierra 2500 HD6.6LV8N/A
2004GMCSierra 35006.6LV8N/A
2003ChevroletSilverado 2500 HD6.6LV8N/A
2003ChevroletSilverado 35006.6LV8N/A
2003GMCSierra 2500 HD6.6LV8N/A
2003GMCSierra 35006.6LV8N/A
2002ChevroletSilverado 2500 HD6.6LV8N/A
2002ChevroletSilverado 35006.6LV8N/A
2002GMCSierra 2500 HD6.6LV8N/A
2002GMCSierra 35006.6LV8N/A
2001ChevroletSilverado 2500 HD6.6LV8N/A
2001ChevroletSilverado 35006.6LV8N/A
2001GMCSierra 2500 HD6.6LV8N/A
2001GMCSierra 35006.6LV8N/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:

10390972577314F30UPRDFNGM06BGM080TNKFN994

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