~ Where passion meets precision · Atelier Haarlem since 2010 ~
The OEM reference number for this MCS turn signal flasher is 68543-64A. This makes it a direct replacement for Harley-Davidson factory units.
This flasher is compatible with FL models from 1964-1984 (NU designation). The FLT Tour Glide was introduced in 1980, but falls outside the standard compatibility range listed. We recommend verifying fitment with our technical team before purchasing.
The MCS flasher unit mounts in the factory location using the rectangular design. Disconnect the battery before installation. Remove the original flasher unit and connect the new one to the turn signal circuit. The unit should be mounted in a dry location away from excessive vibration. Consult your motorcycle's service manual for exact wiring diagrams specific to your model.
This MCS turn signal flasher is designed for 12-volt electrical systems, which is standard on Harley-Davidson motorcycles from 1964 onwards. If your bike has been converted to 6-volt or uses a different voltage system, this unit will not be compatible.
Yes, this MCS flasher is compatible with all XL Sportster models from 1973 through 1995. The 12-volt system remained consistent throughout this period, making this unit a reliable replacement for any Sportster in that range.
The blink rate is determined by the resistance in your turn signal bulbs and circuit. If the rate seems incorrect, first check that all turn signal bulbs are functioning and have the correct wattage. If bulbs are fine, the flasher unit itself may need replacement. Verify your bulbs match OEM specifications for your model year.
The MCS flasher is designed for standard motorcycle applications and should be mounted in a location protected from excessive moisture and road spray. While it has basic protection, it is not fully waterproof and should not be submerged or exposed to direct water jets. Mount it in a dry area of your electrical system for optimal longevity.
Turn signal flasher units can fail due to age, electrical stress, or corrosion. Signs of failure include turn signals that do not blink, blink too fast or too slow, or only blink on one side. A worn flasher is also common when restoring vintage motorcycles or upgrading to LED turn signals. Replacement is straightforward and affordable compared to potential wiring issues.
More questions? View all FAQs
The MCS H-D style turn signal flasher is an essential electrical component for classic Harley-Davidson motorcycles and compatible cruiser models. This OEM-style rectangular flasher unit maintains the authentic vintage appearance while delivering reliable performance for your turn signal system.
Built to original specifications, it ensures your motorcycle's lighting system operates safely and complies with standard traffic regulations.
This flasher unit is engineered to work seamlessly with 12-volt electrical systems found on a wide range of Harley-Davidson classics, including Softails, FXR models, FX models, XL Sportsters, and FL models. Whether you're restoring a classic machine or maintaining an existing bike, this MCS flasher provides dependable switching action for your turn signals, keeping you visible and safe on the road.
As a direct replacement for OEM reference 68543-64A, this unit guarantees compatibility and proper function. The rectangular design fits neatly into factory mounting locations, making installation straightforward for both professional mechanics and dedicated enthusiasts.
The MCS H-D style turn signal flasher is an essential electrical component for classic Harley-Davidson motorcycles and compatible cruiser models. This OEM-style rectangular flasher unit maintains the authentic vintage appearance while delivering reliable performance for your turn signal system.
Built to original specifications, it ensures your motorcycle's lighting system operates safely and complies with standard traffic regulations.
This flasher unit is engineered to work seamlessly with 12-volt electrical systems found on a wide range of Harley-Davidson classics, including Softails, FXR models, FX models, XL Sportsters, and FL models. Whether you're restoring a classic machine or maintaining an existing bike, this MCS flasher provides dependable switching action for your turn signals, keeping you visible and safe on the road.
As a direct replacement for OEM reference 68543-64A, this unit guarantees compatibility and proper function. The rectangular design fits neatly into factory mounting locations, making installation straightforward for both professional mechanics and dedicated enthusiasts.
Delivery time: 3–5 business days
Be the first to review this product
