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Yes, the MCS gasket is designed for all 1955-1972 Big Twin models. It fits both chrome and black OEM-style taillight housings from this era. Simply verify your taillight uses the original H-D style design, and this gasket will provide a perfect seal.
Yes, this gasket is compatible with XL Sportster (NU) models from 1955-1972. It serves as a direct replacement for part numbers 519380 (chrome) and 519458 (black), ensuring proper fitment across both engine families.
Part number 519380 is the chrome-style taillight gasket, while 519458 is the black version. The MCS gasket serves as a direct replacement for both, so you only need one gasket regardless of your taillight finish preference.
Installation is straightforward: remove your taillight lens from the housing, place the MCS gasket between the lens and housing, then reassemble. Ensure the gasket sits evenly in the groove to create a watertight seal. No special tools required.
Yes, the MCS gasket is specifically designed to create a watertight seal between the lens and housing. Its weather-resistant material maintains seal integrity even in harsh riding conditions, protecting your electrical components from moisture damage.
This is an OEM-style aftermarket gasket by MCS that directly replaces the original H-D part number 68122-55. It meets original equipment specifications while being more readily available and affordable than vintage original parts.
Yes, as long as your reproduction taillight uses the classic OEM H-D style design with matching lens and housing dimensions, this gasket will work. Confirm that your housing accepts the 519380/519458 style gasket before ordering.
With proper installation and typical riding conditions, the MCS gasket should last many years. However, if you notice water leaking into your taillight or the gasket becomes cracked or hardened, replacement is recommended to maintain a proper seal.
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The MCS Gasket for 55-72 taillights is an essential replacement component for classic Harley-Davidson and custom motorcycle builders. This genuine OEM-style gasket ensures a perfect seal between your taillight housing and lens, preventing water ingress and maintaining the authentic look of your vintage machine.
Designed as a direct replacement for both chrome (part 519380) and black (part 519458) H-D taillight assemblies, this gasket is engineered to meet original equipment specifications. Whether you're restoring a 1955-1972 Big Twin or XL Sportster, this component guarantees proper fitment and long-lasting reliability.
The gasket material is formulated to resist weathering and maintain its seal integrity over years of use.
Perfect for cafe racer enthusiasts, classic motorcycle restorers, and custom builders seeking authentic components. Pair this gasket with your OEM or reproduction taillight housing to achieve a watertight installation that looks factory-correct.
The MCS Gasket for 55-72 taillights is an essential replacement component for classic Harley-Davidson and custom motorcycle builders. This genuine OEM-style gasket ensures a perfect seal between your taillight housing and lens, preventing water ingress and maintaining the authentic look of your vintage machine.
Designed as a direct replacement for both chrome (part 519380) and black (part 519458) H-D taillight assemblies, this gasket is engineered to meet original equipment specifications. Whether you're restoring a 1955-1972 Big Twin or XL Sportster, this component guarantees proper fitment and long-lasting reliability.
The gasket material is formulated to resist weathering and maintain its seal integrity over years of use.
Perfect for cafe racer enthusiasts, classic motorcycle restorers, and custom builders seeking authentic components. Pair this gasket with your OEM or reproduction taillight housing to achieve a watertight installation that looks factory-correct.
Delivery time: 3–5 business days
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