RLB-HILON Fuel Filler Neck Housing for Chevy Silverado, Tahoe, Suburban, GMC Sierra/Yukon (1999–2007) OEM 15289921

Overview

The RLB-HILON Fuel Filler Neck Housing is a purpose-built replacement designed for a broad range of GM trucks and SUVs from 1999 to 2007. Identified by OEM part number 15289921, this component focuses on a secure seal, precise alignment, and durable construction to support steady fueling and long-lasting performance.

Why this model matters

Engineered to fit multiple Chevrolet, GMC, and Cadillac configurations, the housing helps maintain the integrity of the fuel filler area. The design prioritizes a snug fit and reliable mounting, which can contribute to a clean, residue-free filler opening and smoother re-fueling experiences. While not a guarantee of results, thoughtful compatibility reduces the likelihood of misalignment or leaks caused by worn or incompatible parts.

Compatibility at a glance

• Chevrolet: Silverado, Suburban, Tahoe, Avalanche, and related 1500/2500/3500 series from 1999–2007 (and 2007 Classic formats) with corresponding body styles.
• GMC: Sierra, Yukon, and Yukon XL series from 1999–2007, including HD variants where applicable, spanning light and heavy duties.
• Cadillac: Escalade family including ESV and EXT models from 2002–2006.

What you get

• 1 piece Fuel Filler Neck Housing.
• Clear note: please double check fit to ensure it matches your exact vehicle year and model before purchase.

Real-world use and benefits

In daily use, a correctly matched filler neck housing can help the filler cap seat evenly, reduce wiggle, and support a clean exterior when refueling. The sturdy construction offers a reassuring feel during handling and installation, while the broad compatibility can simplify sourcing for mixed GM fleets. This replacement component is designed to slot into place with minimal fuss, helping you complete a repair with confidence and without waiting for a perfect factory part to become available.

Installation notes

Before ordering, verify that the part’s fit aligns with your vehicle’s year and model. Installation results can vary by trim and sub-variant, so consulting your service manual or a professional technician is recommended if you’re unsure.