BIGLKNM Flange Gasket Repair Kit for Harley-Davidson (1984–2023) — Red 6061 Aluminum Installer & Chrome Flanges

BIGLKNM’s flange gasket repair kit is a complete replacement set—gaskets, chrome flanges, fasteners and an aluminum installer tool—designed to restore a sealed, vibration-resistant exhaust flange on many 1984–2023 Harley-Davidson Big Twin, Touring, Dyna, Softail and Sportster models.

This kit groups everything needed to replace worn exhaust flange seals, speed up installation and get back on the road without hunting for mismatched parts. Components include a pair of compression-style gasket seals, chrome flanges, snap rings, nuts and washers, plus a red 6061 aluminum installer that helps seat the gasket evenly and resists corrosion. The parts are built for durability and compatibility across a broad range of Harley models, though they are not compatible with V‑Rod engines.

Which Harley models will this flange gasket kit fit?

This kit is engineered for a wide span of Big Twin and Sportster model years 1984 through 2023. It covers Touring bikes such as Electra Glide, Road Glide, Street Glide and Road King; Sportster 883/1200 variants; Dyna and many Softail versions.

• Compatible: Touring, Electra Glide, Road Glide, Street Glide, Road King (1984–2023)
• Sportster fitment: 883, 1200, Iron series, Superlow, Forty-Eight, Seven-Two
• Dyna fitment: Switchback, Super Glide, Street Bob, Fat Bob, Low Rider, Wide Glide
• Softail fitment: Deluxe, Fat Boy, Heritage, Slim, Sport Glide, Breakout, Low Rider

How does the red gasket seal installer tool improve installation?

The included red installer is machined from 6061 aluminum to provide a stiff, corrosion-resistant guide for seating gaskets evenly into the flange assembly. It reduces the risk of pinched or misaligned seals and speeds up repeatable installations.

• Material: 6061 aluminum resists corrosion and warping
• Function: centers and compresses gasket evenly for reliable sealing
• Benefit: lowers installation time and reduces rework from misaligned seals

What hardware and components are included in the package?

The kit is shipped complete so you won’t need extra fasteners or specialty parts for a standard flange gasket replacement. Everything is sized to work together to re-create a secure flange joint.

• 1 pair gasket seals (compression-style)
• 1 pair chrome flanges
• 1 red gasket seal installer tool
• 2 snap rings, 4 nuts and washers

Are these parts durable and designed for road use?

Yes—the metal flange pieces are heavy-duty steel and the installer uses aircraft-grade aluminum, giving the set long service life under typical motorcycle heat and vibration. Proper installation and matching to the correct model years helps ensure dependable performance.

• Flanges: heavy-duty steel built to withstand heat and vibration
• Installer: anodized 6061 aluminum for durability and corrosion resistance
• Seals and fasteners: supplied as a matched set to maintain a tight joint

Please note: these components will not work with Harley V‑Rod models. Before purchasing, confirm your motorcycle’s model and year match the listed fitment to avoid incompatibility.

Who is this for? This BIGLKNM flange gasket and hardware kit is ideal for DIY mechanics, restoration projects, and professional shops servicing 1984–2023 Harley Big Twin, Touring, Dyna, Softail and Sportster motorcycles that need a reliable flange seal replacement. It’s especially useful when you want a complete matched set—gaskets, flanges, fasteners and a purpose-built installer—so you can finish the job efficiently and with confidence.