BIGLKNM Primary Cover Gasket Kit for Sportster 883/1200 (1991–2003) — Metal foam gasket & NBR seals, leak-free

This kit supplies the precise sealing components riders need when removing or servicing the primary cover on Sportster engines. Made from a durable metal foam board gasket plus NBR seals and O-ring, the components resist heat and oil exposure typical of motorcycle drivetrains. The set is sized for a range of XL and XLH Sportster years, offering a straightforward way to stop oil seepage and preserve clutch operation after maintenance or repair.

Which Sportster models will this gasket kit fit?

This kit was designed to match common primary cover dimensions across many Sportster model years. Verify the part shapes and bolt locations against your cover before purchasing to ensure correct fitment.

• Fits 1996–2003 Sportster 1200 Custom (XL1200C) and 1200 Sport (XL1200S)
• Fits 1999–2003 Sportster 883 Custom (XL883C) and 2002–2003 883 Roadster (XL883R)
• Fits 1991–2003 XLH1200 and XLH883 plus 1991–1995 XLH883DLX and XLH883HUG variants

What materials are used and why do they matter?

The primary gasket is cut from a metal foam board and the seals and O-ring are molded from NBR (nitrile rubber). These choices balance durability and resistance to the heat and oils found in motorcycle primary cases.

• Metal foam gasket resists deformation and maintains shape under bolt torque
• NBR seals provide reliable oil resistance and temperature tolerance for drivetrain use
• Lightweight components reduce installation difficulty while retaining sealing performance

How does this kit help during maintenance or repair?

When you remove the primary cover for clutch, chain, or inspection work, old gaskets and seals often lose compression and let oil seep out. Replacing them restores a proper seal, reduces post-service leaks, and helps maintain clean, safe operation.

• Replace after primary cover removal to prevent leaks when reassembled
• Stops oil seepage that can foul belts or clutch plates
• Supports consistent clutch cover pressure and longer service intervals

What’s included and any installation notes?

The kit contains the main primary gasket plus the necessary seals and an O-ring as shown in the product images. Clean mating surfaces thoroughly and follow correct torque specs to avoid overtightening and ensure a reliable seal.

• Main primary gasket shaped for Sportster covers
• Multiple NBR seals and a replacement O-ring for shaft or cover openings
• Check fit against your cover and use recommended torque sequence when reinstalling

Who is this for: This gasket and seal kit is aimed at Sportster owners, home mechanics, and professional shops performing primary cover or clutch service on compatible Harley-Davidson Sportster models. It’s a practical purchase for anyone rebuilding the primary, replacing worn seals, or preventing oil leaks after routine maintenance.